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Bulletin 7620 - 3 August 1993
Series 7600 Centrifugal BI Fans Design 7620 • Class I, II, & III
CML Northern Blower Inc. is one of the largest industrial fan companies in North America. In all that we do we are committed to the construction of an excellent product and the provision of outstanding customer service. Northern Blower quality is a tradition. From our first day we have devoted our best efforts to the production of high grade fan equipment. Every day we strive to improve. Our sales representatives are located coast-to-coast across the continent. Backed by the factory sales team, Northern Blower representatives are ready to provide product information and application advice whenever you need it.
CML NORTHERN BLOWER
Gordon Christie PRESIDENT/CEO
Description
Index
Series 7600 Centrifugal BI Fans The Design 7620 BI fan is a quiet, highly efficient, and stable operating fan suited for a broad range of industrial and commercial applications.
Industrial supply and exhaust: Fume Exhaust Light Dust Collection Spray Booth Exhaust Pulp and Paper Machines Heat Applications Special Stainless Steel and Aluminum Construction Light Moisture Applications
Design Features
2
General Information
3
Accessories
4
Selection
6
Performance Data
8
Dimensions
24
Sound Data
27
Fan Geometry
27
Centrifugal Fan Arrangements
28
CML Northern Blower Inc. certifies that the Series 7600, Design 7620 BI Fan shown herein is licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA publication 211 and AMCA publication 311 and comply with the requirements of the AMCA Certified Ratings program.
1
Design Features
Housing & Framing Rugged heavy gauge all welded steel housings with substantial framing sections for maximum rigidity.
BI Wheel Heavy gauge, single thickness, backward inclined blades.
Bearings Heavy duty precision ball or roller bearings sized for generous B-10 life.
Shafts Turned ground and polished or fully machined to close dimensional tolerance.
Balancing Wheels are dynamically balanced to ANSI S2.19-1989 specifications for smooth operation.
2
General Information
Shafts and Bearings Shafts Selected to have suitable strength and operated well below the first critical speed for each maximum class condition. Bearings Antifriction, grease lubricated, self aligning ball or roller types, solid or split housing, manufactured to internationally adopted standards by companies having worldwide acceptance and support services. Bearings are selected for continuous belt driven operation with a generous bearing life throughout each full class range.
Classes of Construction Fan Size Range SISW Arr.
4 Position Universal Discharge Class I
Class II
4 Position Fixed Discharge Class II
Class III
1
1225 - 5425 1225 - 4450
4900 - 5425
2450 - 5425
9
1225 - 5425 1225 - 4450
4900 - 5425
2450 - 5425
Capacities 400 CFM to 85,000 CFM
Pressures Class I Class II Class III
to 7" S.P. (Size 1225 - 5425) to 12" S.P. (Size 1225 - 5425) to 19" S.P. (Size 2450 - 5425)
Temperatures Operating Temperatures to 800°F See Table 2, Page 6
Design 7620 Centrifugal BI Wheel The Northern Blower BI wheel is designed for high operating efficiency. The blades are formed from heavy gauge single thickness sheets. Continuously welded steel construction is standard. Available from 12 1/4" to 54 1/4" diameters.
3
Accessories
Variable Inlet Vanes
Outlet Damper
Shaft and Bearing Guard
Variable Inlet Vanes provide accurate volume control with minimal reduction in performance efficiency. Fan performance remains stable through fully open to fully closed positions. Available for both manual and automatic operation to temperatures of 300° F. Special design available for temperatures to 650° F.
Outlet Dampers are the least expensive air volume control device but are less efficient than Variable Inlet Vanes or Inlet Box with Inlet Damper. Northern Blower Outlet Dampers have punched flanges on both ends to allow for convenient fan and duct connections. Both parallel blade and opposed blade designs are available for operating temperatures to 650° F.
Encloses the shaft and bearings from the fan drive side to just beyond the outboard fan bearing. Guard includes accessible grease fittings for both bearings.
Raised Access Door
Flush Access Door
Inlet Screen
Access door raised 6" beyond scroll surface to provide room for insulation on exterior of fan housing. Insulated door plug surface is flush with inside of housing scroll.
Access door mounted flush to the fan scroll and secured with bolted clips. Quick release handle system also available.
Steel screen mounted to the inlet cone.
4
Accessories
Cooling Wheel
Shaft Seal
Belt Guard
Split aluminum wheel mounted between the inboard bearing and the fan housing. Protects the inboard bearing from shaft conveyed heat and housing radiated heat. Supplied with protective guard as standard. Required for high temperature application; see Table 2 on Page 6.
Used to reduce leakage through the shaft hole in the housing. Seal material aluminum, brass, or Compressed NonAsbestos Gasket Sheet, depending on fan application.
Enclosed on all sides for safe operation and vented to prevent overheating. Tachometer holes, hinged cover, and safety colour coatings also available.
Unitary Base
Additional Accessories
Rigid steel frame to provide a common mounting platform for fan and motor. May be ordered with spring or rubber-inshear isolators and motor slide base.
• Spark Resistant Construction • Protective Coatings • Special Metals • Drain Openings • High Temperature Construction • Extended Grease Fittings • Insulation Clips • Mounted Drive Package
Flanged Outlet/ Flanged Inlet Punched flanges to facilitate the bolting of duct connections to the fan inlet and outlet. Flanged Outlet is a built-in feature of the Series 7600 fans, punched to suit outlet damper flange holes.
Due to the wide variety of BI fans available from Northern Blower we are unable to publish all information in one bulletin. Further information on custom fans is available from your Northern Blower sales representative.
5
Selection
Fan Selection at Elevated Temperature and Altitude Fan Selection Tables Ratings shown in the Performance Tables are based on standard air density of .075 pounds per cubic foot at the fan inlet. Standard air is dry air at 70° F and 29.92" Hg barometric pressure. When air density varies from standard, due to temperature or altitude changes, the Air Density Correction . Factor from Table 3 is applied. Refer to the sample selection that follows.
Table 2 High Temperature Operating Limits with Steel Wheels Arrangement
Without Cooling Wheel
With Cooling Wheel
1 SW
300°F
650°F *
9 SW
300°F
650°F
* Class III with cooling wheel and shaft seal to 800°F Note that data in the selection tables does not include the effects of accessories such as inlet dampers, outlet dampers, screens, or other components in the air stream.
Table 3 Air Density Correction Factor
High Temperature Fan selected for high temperature service must fall within the limits for a particular arrangement as shown in Table 2. For selection, both fan performance and physical operating limits must be corrected. Refer to the sample selection on the following page.
Table 1 Wheel & Shaft Maximum Speeds at 70°F ( SISW only ) Size
6
Class I Shaft
Class II
Wheel
Shaft
Wheel
1225
3425
3425
4463
4463
1350
3032
3335
3951
4149
1500
2719
2855
3542
3613
1650
2471
2595
3219
3219
Class III Shaft
Wheel
1825
2190
2300
2854
2911
2000
1996
1996
2600
2652
2225
1802
1892
2347
2464
2450
1694
1728
2208
2318
2777
2777
2700
1538
1615
2003
2103
2520
2646
3000
1383
1452
1802
1892
2267
2380
3300
1246
1308
1624
1705
2042
2083
3650
1126
1182
1467
1467
1845
1845
4025
1021
1072
1331
1358
1674
1758
4450
922
968
1201
1225
1511
1541
Air Temp °F -40° 0° 40° 70° 100° 140° 180° 200° 250° 300° 350° 400° 450° 500° 600° 700° 800°
Elevation (Feet) above Sea Level 0 .79 .87 .94 1.00 1.06 1.13 1.21 1.25 1.34 1.43 1.53 1.62 1.72 1.81 2.00 2.19 2.38
500 .81 .88 .96 1.02 1.08 1.15 1.23 1.27 1.36 1.46 1.56 1.65 1.75 1.84 2.04 2.23 2.42
1000 .82 .90 .98 1.04 1.10 1.17 1.25 1.29 1.39 1.49 1.58 1.68 1.78 1.88 2.07 2.27 2.46
2000 .85 .93 1.01 1.08 1.14 1.22 1.30 1.34 1.44 1.54 1.64 1.75 1.85 1.95 2.15 2.35 2.56
3000 .88 .97 1.05 1.12 1.18 1.26 1.35 1.39 1.49 1.60 1.71 1.81 1.92 2.02 2.23 2.44 2.65
4000 .92 1.00 1.09 1.16 1.22 1.31 1.40 1.44 1.55 1.66 1.77 1.88 1.99 2.10 2.32 2.53 2.75
5000 .95 1.04 1.13 1.20 1.27 1.36 1.45 1.50 1.61 1.72 1.84 1.95 2.06 2.18 2.40 2.63 2.86
Table 4
4900
837
879
1090
1145
1371
1398
5425
756
794
986
1035
1240
1265
Safe Speed Deration Factors Temp °F -50 to 150 200 300 400 500 600 700 800
Steel Wheel 1.0 .93 .89 .86 .82 .79 .76 .68
Steel Shaft 1.0 1.0 1.0 .99 .97 .96 .95 .94
Selection
Sample Selection of a Belt Drive Fan Select a fan for the operating conditions of 7500 CFM at 2-1/2" SP, 500°F and 0 feet elevation.
Operating BHP =
= Operating SP x Air Density Corr. Factor = 2-1/2" x 1.81 = 4-1/2"
2) From the Performance Table, select the fan size. For 7500 CFM at 4-1/2" SP an efficient selection would be a size 2450 fan. Interpolating from the Performance Table given on page 14, the selection fan performance is 1505 RPM and 7.13 BHP at standard temperature and pressure.
7.13 1.81
=
1) Multiply the Operating SP by the Air Density Correction Factor (Table 3) to obtain Equivalent SP: Equivalent SP
Equivalent BHP Air Density Correction Factor
= 3.94 BHP
4) Multiply the Wheel & Shaft Maximum Speed at 70°F values (Table 1) by the Wheel & Shaft Safe Speed Deration Factors (Table 4). For size 2450, Class II, the maximum speed at 500° F is: Wheel = 2318 x 0.82 = 1901 RPM Shaft = 2208 x 0.97 = 2142 RPM Since the fan selection speed of 1505 RPM is below both the maximum allowable wheel and shaft speeds, the Class II fan is a suitable selection.
3) Divide the Equivalent BHP by the Air Density Correction Factor to obtain the Operating BHP:
Design 7620 Performance Curve 120
TP BHP
Percent Pressure, Brake Horsepower, and Efficiency
SP 100
80 ME
SE
60
40
20
0
20
40
60
80
100
Percent free delivery volume - CFM • High Efficiency • Stable Operation
7
Performance Data
Wheel Diameter = 12.25 in. Outlet Area = 0.86 sq. ft. inside Maximum BHP = .068 x (RPM/1000)3 Tip Speed, fpm = 3.21 x RPM
Size
1225
SISW
Class I Class II
RPM 3425 RPM 4463
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
400 450 500 550 600
464 522 580 638 696
691 724 762 803 846
0.02 0.03 0.03 0.03 0.04
797 823 853 886 924
0.03 0.04 0.04 0.05 0.05
896 915 940 968 999
0.04 0.05 0.05 0.06 0.07
1003 1022 1046 1073
0.06 0.07 0.07 0.08
1100 1120 1144
0.08 0.09 0.09
1192 1212
0.10 0.11
1279
0.13
700 800 900 1000 1100
812 928 1044 1160 1276
932 1020 1113 1212 1314
0.05 0.07 0.09 0.12 0.15
1006 1092 1178 1267 1361
0.07 0.09 0.11 0.14 0.17
1072 1155 1240 1326 1413
0.08 0.10 0.13 0.15 0.19
1137 1213 1296 1381 1467
0.10 0.12 0.15 0.18 0.21
1201 1269 1347 1431 1517
0.11 0.14 0.16 0.20 0.23
1264 1326 1398 1478 1563
0.13 0.15 0.18 0.22 0.26
1325 1381 1448 1524 1606
1200 1300 1400 1500 1600
1392 1508 1624 1740 1856
1419 1525 1632 1740 1848
0.18 0.22 0.27 0.33 0.39
1460 1561 1665 1770 1876
0.20 0.25 0.30 0.35 0.42
1505 1601 1700 1801 1905
0.23 0.27 0.32 0.38 0.44
1554 1644 1738 1835 1935
0.25 0.30 0.35 0.41 0.47
1603 1689 1778 1871 1968
0.27 0.32 0.37 0.43 0.50
1648 1734 1821 1910 2002
0.30 0.35 0.40 0.46 0.53
1700 1800 1900 2000 2200
1972 2088 2204 2320 2552
1957 2066 2176 2286 2506
0.46 0.54 0.62 0.72 0.94
1983 2091 2199 2307 2526
0.49 0.57 0.66 0.75 0.98
2010 2116 2222 2330 2546
0.52 0.60 0.69 0.79 1.02
2037 2141 2246 2352 2566
0.55 0.63 0.72 0.82 1.05
2067 2168 2271 2375 2586
0.58 0.66 0.75 0.86 1.09
2098 2196 2296 2399 2607
2400 2600 2800 3000 3200
2784 3016 3248 3480 3713
2726 2948 3169 3391 3614
1.21 1.53 1.89 2.31 2.79
2745 2965 3185 3406 3627
1.25 1.57 1.94 2.36 2.84
2763 2982 3201 3421 3641
1.29 1.61 1.98 2.41 2.90
2781 2999 3217 3436 3655
1.33 1.65 2.03 2.46 2.95
2800 3015 3232 3450 3669
1.37 1.70 2.08 2.51 3.00
3400 3600 3800
3945 4177 4409
3836 4059 4282
3.33 3.94 4.62
3849 4071 4293
3.39 4.00 4.68
3862 4083 4305
3.44 4.06 4.75
3875 4096 4317
3.50 4.12 4.81
3889 4108 4328
3.56 4.18 4.87
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
BHP
RPM
BHP
0.15 0.17 0.20 0.24 0.28
1441 1491 1548 1614 1689
0.18 0.21 0.24 0.28 0.32
1554 1594 1645 1704 1771
0.22 0.25 0.28 0.32 0.37
1693 1739 1792 1853
0.29 0.33 0.37 0.42
1691 1777 1863 1949 2038
0.32 0.37 0.43 0.49 0.56
1771 1855 1940 2026 2112
0.37 0.43 0.49 0.55 0.63
1846 1927 2011 2097 2182
0.42 0.48 0.55 0.62 0.69
1922 1997 2078 2162 2247
0.47 0.53 0.60 0.68 0.76
0.61 0.69 0.79 0.89 1.13
2130 2226 2323 2423 2628
0.64 0.73 0.82 0.93 1.17
2199 2289 2381 2476 2673
0.71 0.80 0.90 1.00 1.25
2268 2354 2442 2532 2720
0.78 0.87 0.97 1.08 1.33
2332 2418 2504 2591 2771
0.85 0.94 1.04 1.16 1.41
2818 3032 3248 3465 3683
1.41 1.74 2.12 2.56 3.05
2837 3049 3263 3479 3696
1.45 1.79 2.17 2.61 3.11
2876 3084 3295 3508 3723
1.54 1.87 2.26 2.71 3.21
2917 3120 3327 3538 3751
1.63 1.97 2.36 2.81 3.32
2961 3158 3361 3568 3778
1.71 2.06 2.46 2.92 3.43
3901 4121 4340
3.61 4.24 4.94
3914 4133 4352
3.67 4.30 5.00
3939 4157 4375
3.78 4.41 5.12
3965 4180 4397
3.90 4.53 5.25
3990 4204 4419
4.01 4.66 5.37
4"SP
4-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
800 900 1000 1100 1200
928 1044 1160 1276 1392
1792 1829 1878 1934 1996
0.34 0.37 0.42 0.47 0.53
1917 1961 2013 2071
0.42 0.47 0.52 0.58
2004 2041 2090 2144
0.48 0.52 0.57 0.63
2199 2238 2286
0.63 0.69 0.75
2381 2422
0.81 0.87
2554
1.00
2684
1.14
1300 1400 1500 1600 1700
1508 1624 1740 1856 1972
2066 2143 2224 2307 2392
0.59 0.66 0.74 0.83 0.92
2136 2207 2284 2366 2449
0.65 0.72 0.80 0.89 0.99
2205 2271 2344 2423 2505
0.70 0.78 0.86 0.95 1.06
2340 2399 2464 2535 2611
0.82 0.90 0.99 1.09 1.19
2471 2525 2583 2647 2717
0.95 1.03 1.12 1.23 1.34
2597 2646 2700 2758 2822
1.08 1.17 1.26 1.37 1.49
2719 2763 2814 2868 2926
1800 2000 2200 2400 2600
2088 2320 2552 2784 3016
2478 2650 2824 3007 3198
1.02 1.24 1.50 1.81 2.16
2534 2705 2878 3055 3240
1.09 1.32 1.59 1.90 2.26
2589 2759 2931 3104 3284
1.17 1.40 1.68 1.99 2.36
2691 2859 3029 3201 3374
1.31 1.57 1.86 2.18 2.56
2792 2952 3120 3291 3463
1.46 1.73 2.04 2.38 2.77
2891 3042 3206 3375 3547
1.61 1.89 2.22 2.58 2.98
2800 3000 3200 3400 3600
3248 3480 3713 3945 4177
3396 3600 3807 4017 4229
2.56 3.02 3.54 4.12 4.78
3433 3632 3836 4043 4253
2.67 3.13 3.65 4.24 4.90
3471 3666 3866 4071 4278
2.77 3.24 3.77 4.36 5.02
3552 3737 3930 4128 4331
2.98 3.47 4.00 4.61 5.28
3636 3813 3998 4189 4385
3.20 3.69 4.25 4.86 5.54
3718 3891 4069 4253 4443
3.42 3.93 4.49 5.11 5.81
3800
4409
4442
5.50 7-1/2"SP
8"SP
8-1/2"SP
1-3/4"SP
RPM
RPM
7"SP
1-1/2"SP
BHP
FPM
6-1/2"SP
1-1/4"SP RPM
CFM
Volume O.Vel
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
1.22 1.31 1.41 1.52 1.64
2839 2878 2923 2976 3030
1.36 1.45 1.56 1.67 1.79
2990 3031 3080 3131
1.61 1.71 1.83 1.95
3101 3136 3181 3229
1.77 1.87 1.99 2.12
2990 3132 3289 3456 3626
1.77 2.06 2.39 2.78 3.20
3089 3221 3371 3533 3701
1.93 2.23 2.57 2.97 3.41
3186 3310 3452 3608 3773
2.09 2.40 2.76 3.16 3.62
3282 3399 3533 3682 3843
2.26 2.58 2.95 3.36 3.83
3797 3968 4142 4320
3.66 4.16 4.74 5.37
3871 4042 4214 4388
3.89 4.41 4.99 5.63
3942 4113 4284 4456
4.12 4.66 5.25 5.90
4011 4181 4352
4.35 4.91 5.52
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1500 1600 1700 1800 2000
1740 1856 1972 2088 2320
3241 3280 3326 3376 3488
2.04 2.16 2.29 2.44 2.76
3345 3378 3420 3469 3575
2.21 2.33 2.46 2.61 2.94
3476 3514 3558 3660
2.51 2.64 2.79 3.13
3573 3606 3647 3745
2.70 2.83 2.98 3.33
3697 3735 3828
3.02 3.17 3.52
3789 3822 3908
3.22 3.37 3.72
3908 3989
3.57 3.93
3995 4068
3.78 4.13
4147
4.35
4225
4.56
2200 2400 2600 2800 3000
2552 2784 3016 3248 3480
3615 3757 3913 4077 4245
3.14 3.56 4.04 4.57 5.15
3695 3831 3981 4142 4309
3.33 3.77 4.25 4.79 5.39
3775 3905 4050 4206 4370
3.52 3.97 4.47 5.02 5.63
3855 3979 4118 4269 4430
3.72 4.18 4.69 5.24 5.87
3934 4053 4186 4333
3.93 4.39 4.91 5.48
4011 4126 4255 4396
4.13 4.60 5.13 5.71
4089 4199 4322 4460
4.35 4.82 5.35 5.95
4163 4271 4391
4.56 5.04 5.58
4238 4342 4457
4.78 5.26 5.81
4311 4413
4.99 5.49
3200
3713
4416
5.78
The BHP shown does not include belt drive losses.
8
1/2"SP
CFM
Belt drive is not recommended above 3600 RPM.
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 13.50 in. Outlet Area = 1.05 sq. ft. inside Maximum BHP = .119 x (RPM/1000)3 Tip Speed, fpm = 3.53 x RPM Class I Class II
Size
1350
RPM 3032 RPM 3951
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
600 700 800 900 1000
572 668 763 859 954
669 724 785 849 917
0.03 0.04 0.06 0.07 0.09
762 803 854 912 974
0.05 0.06 0.07 0.09 0.11
848 882 923 973 1029
0.06 0.08 0.09 0.11 0.13
927 958 993 1035 1085
0.08 0.09 0.11 0.13 0.15
1001 1028 1060 1097 1140
0.10 0.11 0.13 0.15 0.17
1094 1124 1158 1196
0.13 0.15 0.17 0.19
1157 1185 1216 1251
0.15 0.17 0.19 0.21
1297 1326 1357
0.21 0.24 0.26
1402 1428 1456
0.26 0.29 0.32
1523 1550
0.34 0.37
1100 1200 1300 1400 1500
1049 1145 1240 1335 1431
987 1058 1131 1204 1279
0.11 0.13 0.16 0.19 0.23
1039 1106 1175 1246 1318
0.13 0.16 0.19 0.22 0.26
1090 1153 1219 1287 1356
0.15 0.18 0.21 0.25 0.29
1140 1200 1262 1327 1394
0.17 0.20 0.24 0.27 0.32
1191 1246 1305 1368 1432
0.20 0.23 0.26 0.30 0.35
1241 1292 1348 1407 1469
0.22 0.25 0.29 0.33 0.37
1291 1338 1390 1447 1506
0.24 0.27 0.31 0.36 0.40
1392 1431 1475 1526 1580
0.29 0.33 0.37 0.41 0.46
1488 1523 1561 1605 1654
0.35 0.38 0.42 0.47 0.52
1579 1611 1646 1684 1727
0.41 0.45 0.49 0.53 0.58
1600 1800 2000 2200 2400
1526 1717 1908 2099 2289
1354 1506 1660 1814 1970
0.27 0.37 0.49 0.63 0.80
1391 1539 1689 1841 1995
0.30 0.40 0.52 0.67 0.85
1427 1571 1718 1868 2019
0.33 0.44 0.56 0.71 0.89
1462 1603 1747 1894 2043
0.36 0.47 0.60 0.75 0.94
1498 1635 1776 1920 2067
0.39 0.50 0.64 0.80 0.98
1533 1666 1805 1947 2091
0.42 0.54 0.68 0.84 1.03
1568 1698 1833 1972 2115
0.46 0.57 0.71 0.88 1.07
1638 1760 1889 2024 2163
0.52 0.64 0.79 0.96 1.16
1707 1822 1946 2076 2210
0.58 0.71 0.87 1.05 1.26
1776 1883 2001 2126 2257
0.64 0.78 0.95 1.13 1.35
2600 2800 3000 3200 3400
2480 2671 2862 3052 3243
2126 2283 2440 2597 2755
1.01 1.24 1.51 1.82 2.16
2149 2304 2460 2616 2773
1.05 1.29 1.57 1.88 2.23
2172 2325 2480 2635 2791
1.10 1.34 1.62 1.93 2.29
2194 2346 2499 2653 2808
1.15 1.39 1.68 1.99 2.35
2216 2367 2518 2671 2825
1.20 1.45 1.73 2.05 2.41
2238 2387 2538 2689 2842
1.25 1.50 1.79 2.11 2.47
2261 2408 2557 2707 2859
1.30 1.55 1.84 2.17 2.54
2305 2449 2595 2743 2893
1.39 1.66 1.95 2.29 2.66
2349 2490 2634 2780 2927
1.49 1.76 2.06 2.41 2.79
2392 2531 2672 2815 2960
1.59 1.87 2.18 2.53 2.92
3600 3800 4000 4200 4400
3434 3625 3816 4006 4197
2913 3071 3230 3388 3547
2.55 2.99 3.47 4.00 4.58
2930 3087 3245 3403 3561
2.62 3.06 3.54 4.07 4.66
2947 3103 3260 3417 3575
2.68 3.13 3.61 4.15 4.74
2963 3119 3275 3432 3589
2.75 3.19 3.69 4.23 4.82
2979 3134 3290 3446 3602
2.81 3.26 3.76 4.30 4.90
2996 3150 3304 3460 3615
2.88 3.33 3.83 4.38 4.98
3012 3165 3319 3474 3629
2.95 3.40 3.90 4.46 5.06
3044 3195 3348 3501 3655
3.08 3.54 4.05 4.61 5.22
3075 3226 3376 3528 3681
3.21 3.68 4.20 4.76 5.38
3107 3255 3405 3555 3707
3.35 3.82 4.35 4.92 5.54
4600 4800
4388 4579
3706 3864
5.22 5.92
3719 3877
5.30 6.00
3732 3890
5.39 6.09
3745 3903
5.47 6.18
3759 3915
5.56 6.27
3771 3928
5.64 6.35
3784 3940
5.72 6.44
3809
5.89
3835
6.06
3859
6.22
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1000 1100 1200 1300 1400
954 1049 1145 1240 1335
1637 1665 1695 1728 1763
0.43 0.47 0.51 0.55 0.60
1722 1748 1776 1806 1840
0.49 0.53 0.57 0.62 0.67
1827 1853 1881 1914
0.59 0.64 0.69 0.74
1999 2025 2054
0.77 0.83 0.89
2160 2185
0.98 1.04
2285 2310
1.13 1.20
2430
1.37
1500 1600 1800 2000 2200
1431 1526 1717 1908 2099
1802 1845 1945 2057 2177
0.65 0.71 0.85 1.02 1.22
1876 1914 2006 2112 2228
0.72 0.78 0.93 1.10 1.30
1947 1984 2067 2167 2278
0.80 0.86 1.00 1.18 1.39
2084 2118 2191 2277 2378
0.95 1.02 1.17 1.34 1.56
2215 2244 2312 2388 2477
1.11 1.18 1.34 1.52 1.74
2337 2366 2428 2499 2578
1.27 1.35 1.52 1.71 1.93
2453 2480 2539 2606 2679
2400 2600 2800 3000 3200
2289 2480 2671 2862 3052
2304 2436 2571 2710 2851
1.44 1.69 1.97 2.29 2.65
2350 2479 2611 2747 2886
1.54 1.79 2.08 2.41 2.77
2397 2522 2651 2785 2921
1.63 1.89 2.19 2.52 2.89
2489 2607 2731 2859 2991
1.81 2.10 2.41 2.75 3.14
2580 2692 2810 2933 3061
2.00 2.29 2.62 2.99 3.38
2671 2776 2888 3007 3130
2.19 2.49 2.84 3.22 3.63
3400 3600 3800 4000 4200
3243 3434 3625 3816 4006
2994 3139 3286 3433 3583
3.04 3.48 3.96 4.49 5.07
3028 3171 3316 3462 3609
3.17 3.61 4.10 4.64 5.23
3061 3202 3345 3490 3637
3.30 3.75 4.25 4.79 5.38
3127 3265 3405 3547 3690
3.56 4.03 4.53 5.09 5.70
3192 3327 3464 3603 3744
3.82 4.30 4.82 5.39 6.01
3258 3389 3523 3659 3798
4.08 4.57 5.11 5.69 6.33
4400 4600
4197 4388
3733 3884
5.71 6.39
3758 3909
5.87 6.56
3784 3933
6.03 6.73
3836
6.36
3887
6.68
3938
7.01
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
1.44 1.53 1.71 1.91 2.14
2565 2590 2647 2709 2778
1.62 1.71 1.90 2.11 2.35
2696 2750 2809 2875
1.89 2.10 2.32 2.56
2798 2850 2905 2969
2.08 2.29 2.53 2.78
2763 2860 2966 3080 3199
2.39 2.70 3.05 3.45 3.88
2855 2944 3044 3153 3268
2.61 2.92 3.27 3.67 4.12
2947 3029 3122 3226 3336
2.84 3.14 3.50 3.91 4.36
3038 3115 3201 3298 3404
3.07 3.38 3.74 4.14 4.61
3323 3450 3581 3715 3850
4.34 4.85 5.40 6.00 6.64
3388 3512 3639 3770 3903
4.61 5.13 5.69 6.30 6.97
3452 3573 3697 3825
4.87 5.41 5.99 6.61
3516 3633 3755 3880
5.12 5.68 6.28 6.92
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2200 2400 2600
1717 1908 2099 2289 2480
2945 2999 3060 3127 3199
2.50 2.74 3.01 3.30 3.62
3038 3091 3149 3213 3283
2.71 2.96 3.24 3.54 3.87
3130 3181 3237 3298 3365
2.92 3.19 3.48 3.79 4.13
3266 3320 3380 3446
3.41 3.71 4.03 4.39
3350 3403 3460 3523
3.64 3.95 4.28 4.65
3433 3485 3540 3600
3.88 4.20 4.54 4.92
3512 3562 3616 3676
4.12 4.44 4.80 5.19
3641 3692 3749
4.70 5.06 5.45
3714 3766 3823
4.95 5.33 5.74
3790 3839 3893
5.22 5.60 6.01
2800 3000 3200 3400 3600
2671 2862 3052 3243 3434
3280 3371 3472 3580 3694
3.98 4.39 4.86 5.38 5.95
3359 3444 3540 3644 3755
4.24 4.65 5.12 5.64 6.22
3437 3518 3608 3707 3814
4.50 4.92 5.38 5.91 6.50
3515 3591 3677 3772 3875
4.77 5.19 5.66 6.19 6.78
3592 3664 3746 3836 3934
5.05 5.47 5.94 6.47 7.06
3667 3738 3814 3900
5.32 5.76 6.23 6.76
3740 3809 3883
5.60 6.05 6.53
3813 3880
5.89 6.34
3883 3950
6.17 6.64
3800 4000
3625 3816
3812 3935
6.57 7.23
3870
6.86
3927
7.14
The BHP shown does not include belt drive losses.
Belt drive is not recommended above 3600 RPM.
The performance shown is for fan with outlet duct.
9
Performance Data
Wheel Diameter = 15.00 in. Outlet Area = 1.29 sq. ft. inside Maximum BHP = .201 x (RPM/1000)3 Tip Speed, fpm = 3.93 x RPM
Size
1500
SISW
Class I Class II
RPM 2719 RPM 3542
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
600 800 1000 1200 1400
464 618 773 927 1082
559 625 712 808 910
0.03 0.05 0.07 0.10 0.15
652 702 774 860 955
0.05 0.07 0.09 0.13 0.17
734 778 835 912 1000
0.06 0.09 0.11 0.15 0.20
847 897 963 1044
0.11 0.13 0.17 0.23
912 957 1014 1088
0.13 0.16 0.20 0.25
973 1014 1066 1132
0.15 0.19 0.23 0.28
1029 1068 1117 1176
0.17 0.21 0.26 0.31
1170 1213 1264
0.27 0.32 0.38
1264 1303 1350
0.33 0.38 0.45
1388 1430
0.45 0.52
1600 1800 2000 2200 2400
1236 1391 1545 1700 1854
1015 1123 1232 1343 1455
0.20 0.26 0.35 0.44 0.56
1055 1159 1265 1373 1482
0.23 0.30 0.38 0.48 0.60
1095 1194 1297 1402 1509
0.26 0.33 0.42 0.53 0.65
1134 1229 1329 1431 1536
0.29 0.37 0.46 0.57 0.69
1173 1264 1360 1460 1562
0.32 0.40 0.50 0.61 0.74
1211 1299 1392 1489 1589
0.35 0.44 0.54 0.65 0.78
1249 1333 1423 1517 1615
0.38 0.47 0.58 0.69 0.83
1326 1401 1485 1574 1668
0.45 0.54 0.65 0.78 0.92
1404 1469 1546 1630 1719
0.52 0.61 0.73 0.86 1.02
1480 1538 1607 1686 1771
0.60 0.69 0.81 0.95 1.11
2600 2800 3000 3200 3400
2009 2163 2318 2472 2627
1567 1680 1794 1908 2022
0.69 0.85 1.03 1.23 1.46
1592 1704 1816 1928 2042
0.74 0.90 1.08 1.29 1.52
1617 1727 1837 1949 2061
0.79 0.95 1.14 1.35 1.59
1642 1750 1859 1969 2080
0.84 1.00 1.19 1.41 1.65
1667 1773 1880 1989 2099
0.89 1.06 1.25 1.47 1.71
1691 1796 1902 2009 2118
0.94 1.11 1.31 1.53 1.77
1716 1819 1923 2029 2136
0.99 1.16 1.36 1.59 1.84
1764 1864 1966 2069 2174
1.09 1.27 1.48 1.71 1.97
1812 1909 2008 2109 2212
1.19 1.38 1.59 1.83 2.09
1860 1953 2049 2148 2249
1.29 1.49 1.71 1.95 2.22
3600 3800 4000 4200 4400
2782 2936 3091 3245 3400
2137 2251 2366 2481 2596
1.72 2.01 2.33 2.68 3.06
2155 2269 2383 2497 2612
1.79 2.08 2.40 2.75 3.14
2173 2286 2399 2513 2627
1.85 2.15 2.47 2.83 3.22
2191 2303 2416 2528 2642
1.92 2.22 2.54 2.91 3.30
2209 2320 2432 2544 2656
1.98 2.28 2.62 2.98 3.38
2227 2337 2448 2559 2671
2.05 2.35 2.69 3.06 3.46
2245 2354 2464 2574 2686
2.12 2.43 2.76 3.14 3.54
2281 2388 2496 2605 2715
2.25 2.57 2.91 3.29 3.70
2316 2421 2528 2635 2744
2.39 2.71 3.06 3.45 3.87
2351 2455 2560 2666 2773
2.52 2.85 3.21 3.61 4.03
4600 4800 5000 5200 5400
3554 3709 3863 4018 4172
2711 2827 2942 3058 3173
3.48 3.94 4.44 4.98 5.56
2726 2841 2956 3071 3186
3.57 4.03 4.53 5.07 5.66
2741 2855 2970 3084 3199
3.65 4.12 4.62 5.17 5.76
2755 2869 2983 3097 3211
3.73 4.20 4.71 5.26 5.86
2769 2882 2996 3110 3223
3.82 4.29 4.80 5.36 5.95
2783 2896 3009 3122 3236
3.90 4.38 4.89 5.45 6.05
2798 2910 3022 3135 3248
3.99 4.47 4.99 5.54 6.15
2825 2936 3047 3160 3272
4.15 4.64 5.17 5.74 6.35
2853 2963 3073 3184 3295
4.33 4.82 5.35 5.92 6.54
2880 2989 3098 3208 3318
4.49 4.99 5.54 6.12 6.74
5600 5800 6000
4327 4481 4636
3289 3405 3521
6.19 6.86 7.58
3301 3417 3532
6.29 6.96 7.68
3313 3428
6.39 7.07
3326 3440
6.49 7.17
3338 3452
6.59 7.28
3349 3463
6.69 7.38
3361 3474
6.80 7.49
3384 3497
7.00 7.70
3407 3519
7.21 7.91
3429 3540
7.41 8.12
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1200 1400 1600 1800 2000
927 1082 1236 1391 1545
1467 1508 1554 1606 1669
0.52 0.59 0.68 0.78 0.89
1543 1581 1624 1674 1730
0.59 0.67 0.76 0.86 0.98
1651 1692 1740 1792
0.75 0.84 0.96 1.08
1784 1821 1864 1912
0.91 1.02 1.14 1.27
1943 1981 2026
1.20 1.33 1.48
2056 2094 2134
1.39 1.53 1.69
2199 2238
1.74 1.91
2300 2337
1.95 2.13
2432
2.36
2524
2.60
2200 2400 2600 2800 3000
1700 1854 2009 2163 2318
1741 1822 1908 1998 2091
1.04 1.20 1.39 1.60 1.82
1797 1873 1955 2042 2133
1.13 1.29 1.49 1.71 1.94
1853 1923 2002 2086 2174
1.22 1.39 1.59 1.81 2.06
1965 2026 2096 2173 2255
1.42 1.59 1.79 2.03 2.29
2075 2129 2190 2260 2337
1.64 1.81 2.02 2.25 2.52
2180 2230 2285 2347 2418
1.86 2.05 2.25 2.49 2.76
2281 2328 2379 2435 2499
2.09 2.29 2.50 2.74 3.01
2377 2422 2470 2523 2581
2.32 2.53 2.76 3.00 3.28
2470 2512 2559 2610 2663
2.56 2.78 3.02 3.28 3.55
2561 2600 2644 2693 2744
2.81 3.04 3.28 3.56 3.84
3200 3400 3600 3800 4000
2472 2627 2782 2936 3091
2187 2286 2386 2488 2592
2.07 2.35 2.66 2.99 3.36
2226 2322 2421 2521 2623
2.20 2.48 2.80 3.14 3.51
2265 2359 2455 2554 2654
2.32 2.62 2.94 3.28 3.67
2342 2432 2524 2619 2717
2.57 2.88 3.21 3.58 3.97
2418 2504 2593 2685 2779
2.82 3.14 3.49 3.87 4.28
2494 2576 2661 2749 2840
3.06 3.40 3.77 4.17 4.59
2570 2647 2728 2813 2902
3.32 3.66 4.04 4.46 4.90
2647 2718 2796 2877 2962
3.58 3.93 4.32 4.74 5.20
2723 2790 2863 2941 3023
3.87 4.21 4.60 5.03 5.51
2800 2862 2930 3005 3083
4.16 4.51 4.90 5.33 5.81
4200 4400 4600 4800 5000
3245 3400 3554 3709 3863
2696 2801 2908 3015 3123
3.76 4.19 4.67 5.17 5.72
2726 2830 2935 3042 3149
3.92 4.36 4.84 5.35 5.90
2756 2859 2963 3068 3174
4.08 4.53 5.01 5.53 6.09
2815 2916 3017 3120 3225
4.40 4.86 5.36 5.89 6.47
2874 2973 3072 3173 3274
4.72 5.20 5.70 6.26 6.84
2933 3029 3126 3224 3324
5.04 5.53 6.06 6.62 7.22
2992 3084 3179 3275 3374
5.37 5.87 6.41 6.98 7.60
3050 3140 3232 3327 3423
5.70 6.21 6.76 7.35 7.98
3108 3196 3285 3378 3472
6.01 6.56 7.12 7.72 8.36
3166 3251 3339 3428 3521
6.33 6.88 7.48 8.09 8.75
5200 5400 5600
4018 4172 4327
3232 3342 3452
6.31 6.94 7.61
3257 3365 3474
6.50 7.14 7.82
3281 3388 3497
6.69 7.33 8.02
3329 3435 3542
7.08 7.74 8.44
3377 3482
7.47 8.14
3425 3527
7.86 8.54
3473
8.25
3520
8.65
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2200 2400 2600 2800 3000
1700 1854 2009 2163 2318
2647 2686 2728 2774 2824
3.06 3.30 3.56 3.84 4.14
2730 2769 2809 2853 2902
3.31 3.57 3.83 4.12 4.44
2812 2848 2889 2930 2977
3.58 3.84 4.12 4.41 4.74
2927 2965 3007 3050
4.11 4.40 4.72 5.04
3003 3040 3079 3122
4.40 4.70 5.02 5.36
3077 3113 3152 3193
4.68 4.99 5.32 5.67
3184 3223 3262
5.29 5.64 5.99
3255 3291 3332
5.60 5.95 6.33
3323 3359 3397
5.91 6.27 6.65
3424 3464
6.59 6.99
3200 3400 3600 3800 4000
2472 2627 2782 2936 3091
2877 2934 2998 3068 3144
4.46 4.81 5.20 5.64 6.12
2952 3006 3067 3132 3204
4.77 5.13 5.52 5.96 6.44
3026 3079 3135 3197 3264
5.08 5.45 5.85 6.28 6.77
3099 3149 3202 3261 3326
5.40 5.78 6.18 6.62 7.11
3169 3218 3270 3326 3387
5.72 6.11 6.53 6.97 7.46
3238 3287 3336 3390 3448
6.05 6.46 6.88 7.33 7.82
3307 3352 3401 3454 3509
6.39 6.79 7.23 7.69 8.19
3372 3418 3467 3516
6.71 7.14 7.59 8.06
3438 3482 3529
7.06 7.49 7.95
3502
7.40
4200 3245 3223 6.65 3281 6.97 3338 4400 3400 3306 7.21 3361 7.55 3415 4600 3554 3391 7.82 3444 8.17 3496 4800 3709 3480 8.47 3530 8.82 The BHP shown does not include belt drive losses.
7.30 7.88 8.52
3395 3470
7.64 8.23
3453 3525
7.99 8.58
3511
8.35
10
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 16.50 in. Outlet Area = 1.56 sq. ft. inside Maximum BHP = .324 x (RPM/1000)3 Tip Speed, fpm = 4.32 x RPM Class I Class II
Size
1650
RPM 2471 RPM 3219
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
800 1000 1200 1400 1600
511 639 766 894 1022
523 578 644 715 791
0.04 0.06 0.09 0.12 0.15
605 646 700 764 834
0.06 0.08 0.11 0.14 0.19
678 713 757 813 877
0.09 0.11 0.13 0.17 0.22
744 775 813 861 919
0.11 0.13 0.16 0.20 0.25
834 868 910 961
0.16 0.19 0.23 0.28
888 920 958 1004
0.19 0.22 0.26 0.31
940 970 1005 1046
0.22 0.25 0.30 0.35
1062 1094 1131
0.32 0.37 0.43
1148 1177 1210
0.39 0.45 0.51
1254 1284
0.52 0.59
1800 2000 2200 2400 2600
1149 1277 1405 1533 1660
869 949 1030 1112 1195
0.20 0.26 0.33 0.41 0.50
908 984 1062 1142 1222
0.24 0.30 0.37 0.45 0.55
946 1019 1094 1171 1250
0.27 0.34 0.41 0.50 0.60
984 1053 1126 1200 1277
0.31 0.38 0.45 0.55 0.65
1022 1087 1157 1229 1304
0.34 0.41 0.50 0.59 0.70
1059 1122 1188 1258 1330
0.38 0.45 0.54 0.64 0.75
1097 1155 1219 1287 1357
0.41 0.49 0.58 0.69 0.80
1172 1223 1280 1343 1410
0.49 0.57 0.67 0.78 0.90
1247 1291 1342 1399 1462
0.58 0.66 0.76 0.87 1.00
1320 1359 1403 1456 1514
0.67 0.75 0.85 0.97 1.10
2800 3000 3200 3400 3600
1788 1916 2043 2171 2299
1279 1363 1448 1533 1618
0.61 0.74 0.88 1.04 1.22
1304 1387 1470 1554 1638
0.67 0.79 0.94 1.10 1.28
1330 1411 1493 1575 1658
0.72 0.85 1.00 1.16 1.35
1355 1434 1515 1596 1678
0.77 0.91 1.06 1.23 1.42
1380 1458 1537 1617 1697
0.82 0.96 1.12 1.29 1.48
1405 1481 1559 1637 1717
0.88 1.02 1.18 1.35 1.55
1430 1504 1581 1658 1736
0.93 1.08 1.24 1.42 1.62
1479 1550 1624 1699 1775
1.04 1.19 1.36 1.55 1.75
1528 1596 1667 1740 1814
1.15 1.31 1.49 1.68 1.89
1576 1642 1710 1780 1852
1.26 1.43 1.61 1.81 2.03
3800 4000 4200 4400 4600
2426 2554 2682 2810 2937
1704 1790 1875 1961 2047
1.41 1.64 1.88 2.14 2.43
1723 1807 1893 1978 2063
1.48 1.71 1.95 2.22 2.52
1741 1826 1910 1994 2079
1.55 1.78 2.03 2.30 2.60
1760 1843 1927 2011 2095
1.62 1.85 2.11 2.38 2.68
1779 1861 1943 2027 2110
1.69 1.93 2.18 2.46 2.77
1797 1879 1960 2043 2125
1.77 2.00 2.26 2.55 2.85
1816 1896 1977 2059 2141
1.84 2.08 2.34 2.63 2.94
1853 1931 2011 2091 2171
1.98 2.23 2.50 2.79 3.11
1890 1966 2044 2123 2202
2.13 2.38 2.66 2.96 3.28
1926 2001 2077 2154 2232
2.27 2.53 2.82 3.12 3.46
4800 5200 5600 6000 6400
3065 3320 3576 3831 4087
2134 2306 2480 2653 2827
2.75 3.46 4.29 5.24 6.33
2149 2321 2493 2666 2838
2.84 3.56 4.39 5.35 6.45
2164 2335 2506 2678 2850
2.92 3.65 4.49 5.46 6.56
2179 2349 2519 2690 2862
3.01 3.74 4.59 5.57 6.68
2194 2363 2532 2702 2873
3.10 3.84 4.70 5.68 6.80
2209 2376 2545 2714 2884
3.18 3.94 4.80 5.79 6.91
2223 2390 2558 2726 2895
3.27 4.03 4.90 5.90 7.03
2253 2417 2582 2749 2918
3.45 4.22 5.10 6.12 7.27
2282 2444 2608 2773 2939
3.63 4.41 5.32 6.34 7.49
2311 2471 2632 2796 2961
3.81 4.61 5.52 6.56 7.73
6800 7200
4342 4598
3001 3175
7.56 8.95
3012 3185
7.68 9.07
3023 3195
7.81 9.21
3034 3206
7.94 9.34
3044 3216
8.06 9.47
3055
8.18
3066
8.30
3086
8.55
3107
8.80
3127
9.04
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1400 1600 1800 2000 2200
894 1022 1149 1277 1405
1327 1356 1388 1425 1465
0.61 0.68 0.76 0.85 0.95
1423 1454 1488 1526
0.77 0.86 0.95 1.06
1488 1517 1549 1586
0.86 0.96 1.06 1.17
1637 1666 1698
1.16 1.27 1.39
1747 1775 1805
1.37 1.49 1.63
1877 1906
1.73 1.87
2003
2.12
2094
2.39
2400 2600 2800 3000 3200
1533 1660 1788 1916 2043
1512 1565 1624 1687 1752
1.07 1.21 1.36 1.54 1.74
1568 1617 1672 1732 1795
1.18 1.31 1.47 1.66 1.86
1625 1670 1720 1776 1837
1.29 1.43 1.59 1.77 1.98
1735 1774 1817 1866 1920
1.53 1.67 1.84 2.02 2.23
1838 1875 1914 1956 2005
1.77 1.93 2.10 2.29 2.50
1937 1971 2007 2047 2089
2.03 2.19 2.38 2.57 2.79
2031 2062 2097 2134 2174
2.29 2.47 2.66 2.87 3.09
2121 2151 2184 2219 2257
3400 3600 3800 4000 4200
2171 2299 2426 2554 2682
1820 1890 1962 2036 2110
1.94 2.17 2.42 2.69 2.97
1860 1928 1998 2070 2143
2.08 2.31 2.56 2.84 3.14
1900 1966 2034 2104 2175
2.21 2.45 2.71 2.99 3.30
1979 2041 2105 2172 2241
2.47 2.73 3.01 3.31 3.63
2058 2115 2176 2240 2305
2.74 3.00 3.30 3.61 3.95
2137 2190 2246 2306 2369
3.02 3.29 3.59 3.92 4.27
2217 2264 2317 2373 2432
3.33 3.60 3.90 4.23 4.59
4400 4600 4800 5200 5600
2810 2937 3065 3320 3576
2186 2262 2340 2497 2657
3.29 3.63 3.99 4.80 5.73
2217 2293 2369 2524 2682
3.46 3.80 4.17 5.00 5.94
2248 2323 2398 2551 2707
3.63 3.98 4.36 5.19 6.15
2310 2382 2455 2604 2756
3.97 4.33 4.72 5.59 6.57
2372 2441 2512 2656 2805
4.31 4.69 5.09 5.99 6.99
2433 2500 2568 2709 2854
4.65 5.05 5.47 6.39 7.42
2494 2558 2624 2761 2902
6000 6400 6800
3831 4087 4342
2819 2983 3148
6.78 7.97 9.29
2842 3004 3168
7.00 8.20 9.55
2866 3026 3188
7.23 8.44 9.79
2912 3069
7.68 8.91
2957 3113
8.12 9.40
3003 3155
8.58 9.87
3049 3198
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
9"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
2.56 2.75 2.95 3.17 3.40
2207 2236 2267 2300 2337
2.83 3.03 3.25 3.47 3.72
2291 2318 2349 2379 2414
3.12 3.33 3.56 3.79 4.05
2296 2340 2387 2440 2496
3.65 3.92 4.22 4.55 4.92
2374 2415 2459 2507 2559
3.98 4.26 4.56 4.89 5.26
2451 2489 2530 2575 2623
4.32 4.60 4.91 5.25 5.62
4.98 5.40 5.84 6.79 7.85
2555 2616 2680 2812 2950
5.32 5.74 6.20 7.19 8.28
2615 2674 2736 2864 2999
5.66 6.10 6.56 7.59 8.71
2676 2732 2791 2916 3047
6.02 6.46 6.93 7.98 9.15
9.04 10.36
3093
9.49
3138
9.95
3183
10.42
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2600 2800 3000 3200 3400
1660 1788 1916 2043 2171
2397 2426 2456 2490 2524
3.63 3.87 4.11 4.38 4.66
2475 2501 2531 2562 2596
3.94 4.18 4.44 4.72 5.01
2575 2604 2633 2666
4.50 4.78 5.06 5.36
2648 2674 2704 2735
4.84 5.11 5.41 5.73
2743 2772 2801
5.46 5.77 6.09
2810 2837 2867
5.81 6.12 6.46
2876 2904 2931
6.17 6.50 6.84
2965 2993
6.86 7.22
3029 3055
7.25 7.61
3088 3115
7.63 8.00
3600 3800 4000 4200 4400
2299 2427 2554 2682 2810
2561 2600 2643 2688 2737
4.96 5.28 5.62 5.99 6.39
2632 2670 2709 2752 2798
5.32 5.65 5.99 6.37 6.77
2702 2737 2775 2816 2859
5.69 6.02 6.38 6.76 7.17
2768 2803 2840 2879 2921
6.05 6.40 6.77 7.16 7.58
2833 2868 2905 2943 2982
6.43 6.79 7.18 7.58 7.99
2899 2931 2966 3003 3041
6.82 7.18 7.57 7.98 8.41
2961 2993 3027 3064 3101
7.20 7.58 7.98 8.41 8.85
3024 3055 3087 3122 3159
7.60 7.99 8.39 8.83 9.28
3084 3114 3146 3180 3216
7.99 8.39 8.81 9.25 9.72
3144 3174 3204
8.40 8.81 9.24
2906 2957 3068 3189
7.61 8.09 9.17 10.41
2965 3013 3119
8.02 8.50 9.58
3024 3070 3170
8.44 8.93 10.01
3082 3125
8.87 9.36
3140 3181
9.31 9.80
3197
9.76
4600 2937 2790 6.83 2848 7.21 4800 3065 2846 7.31 2902 7.69 5200 3320 2967 8.37 3017 8.77 5600 3576 3094 9.57 3142 9.99 The BHP shown does not include belt drive losses.
The performance shown is for fan with outlet duct.
11
Performance Data
Wheel Diameter = 18.25 in. Outlet Area = 1.91 sq. ft. inside Maximum BHP = .546 x (RPM/1000)3 Tip Speed, fpm = 4.78 x RPM
Size
1825
SISW
Class I Class II
RPM 2190 RPM 2854
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1000 1200 1400 1600 1800
523 628 733 837 942
471 510 555 605 657
0.05 0.07 0.09 0.12 0.15
542 573 610 653 701
0.08 0.10 0.12 0.15 0.19
605 632 664 701 743
0.10 0.12 0.15 0.18 0.22
687 716 748 786
0.15 0.18 0.22 0.26
739 764 795 828
0.18 0.21 0.25 0.30
788 810 838 870
0.22 0.25 0.29 0.34
855 880 910
0.29 0.33 0.38
959 986
0.41 0.46
1034 1057
0.50 0.55
1124
0.65
2000 2200 2400 2600 2800
1046 1151 1256 1360 1465
712 769 827 886 945
0.19 0.23 0.29 0.35 0.42
751 804 859 915 972
0.23 0.28 0.33 0.40 0.47
790 839 891 944 999
0.27 0.32 0.38 0.45 0.52
828 874 923 974 1027
0.31 0.36 0.43 0.50 0.58
867 909 956 1004 1055
0.35 0.41 0.47 0.55 0.63
905 944 987 1034 1082
0.39 0.45 0.52 0.60 0.69
942 979 1019 1063 1110
0.43 0.50 0.57 0.65 0.74
1015 1047 1083 1122 1165
0.52 0.59 0.67 0.76 0.85
1083 1113 1145 1181 1219
0.61 0.69 0.77 0.87 0.97
1148 1176 1206 1238 1274
0.71 0.79 0.88 0.98 1.09
3000 3200 3400 3600 3800
1570 1674 1779 1884 1988
1005 1066 1127 1189 1250
0.50 0.60 0.70 0.82 0.95
1030 1089 1149 1209 1269
0.56 0.65 0.76 0.88 1.01
1056 1113 1171 1229 1289
0.61 0.71 0.82 0.94 1.08
1081 1137 1193 1250 1308
0.67 0.77 0.88 1.01 1.14
1107 1161 1216 1272 1328
0.72 0.83 0.94 1.07 1.21
1133 1185 1238 1293 1349
0.78 0.89 1.01 1.14 1.28
1159 1209 1261 1314 1369
0.84 0.95 1.07 1.21 1.35
1210 1257 1306 1357 1409
0.96 1.08 1.21 1.35 1.50
1261 1306 1352 1400 1450
1.08 1.21 1.34 1.49 1.65
1312 1353 1397 1443 1491
1.20 1.34 1.48 1.63 1.80
4000 4400 4800 5200 5600
2093 2302 2511 2721 2930
1312 1437 1562 1687 1812
1.09 1.43 1.82 2.29 2.83
1330 1453 1576 1701 1825
1.16 1.50 1.90 2.37 2.92
1349 1469 1591 1714 1838
1.23 1.57 1.98 2.45 3.01
1367 1486 1606 1728 1851
1.29 1.64 2.06 2.54 3.10
1386 1503 1622 1742 1864
1.37 1.72 2.14 2.63 3.19
1405 1520 1637 1756 1877
1.44 1.80 2.22 2.71 3.28
1424 1537 1653 1770 1890
1.51 1.88 2.30 2.80 3.38
1462 1572 1684 1799 1916
1.66 2.04 2.48 2.99 3.57
1501 1607 1716 1828 1943
1.82 2.20 2.65 3.17 3.77
1540 1642 1748 1857 1970
1.98 2.37 2.84 3.37 3.97
6000 6400 6800 7200 7600
3139 3349 3558 3767 3977
1938 2064 2190 2317 2443
3.45 4.16 4.96 5.86 6.87
1950 2076 2201 2327 2453
3.55 4.26 5.07 5.98 6.99
1962 2087 2212 2337 2463
3.64 4.36 5.18 6.09 7.11
1974 2098 2223 2347 2472
3.74 4.47 5.29 6.21 7.23
1986 2109 2233 2357 2482
3.84 4.57 5.39 6.32 7.35
1998 2120 2243 2367 2491
3.93 4.67 5.50 6.43 7.47
2010 2132 2254 2377 2500
4.03 4.78 5.62 6.55 7.59
2034 2154 2275 2396 2519
4.24 4.99 5.84 6.79 7.84
2059 2177 2296 2416 2537
4.44 5.21 6.07 7.02 8.09
2084 2200 2318 2437 2556
4.66 5.43 6.30 7.27 8.34
8000 8400 8800
4186 4395 4604
2570 2697 2824
7.98 9.22 10.57
2579 2705 2832
8.11 9.35 10.71
2588 2714 2840
8.24 9.48 10.84
2597 2723 2848
8.36 9.61 10.98
2607 2732 2857
8.49 9.75 11.13
2615 2740 2865
8.62 9.88 11.27
2624 2749 2873
8.74 10.01 11.41
2642 2765 2889
9.00 10.28 11.68
2659 2782 2905
9.26 10.55 11.96
2677 2799 2921
9.52 10.83 12.25
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2200 2400 2600
942 1046 1151 1256 1360
1190 1210 1235 1264 1295
0.75 0.82 0.90 0.99 1.09
1270 1293 1320 1348
0.93 1.01 1.10 1.21
1349 1373 1400
1.13 1.22 1.33
1456 1476 1500
1.38 1.48 1.59
1574 1595
1.75 1.87
1685
2.15
2800 3000 3200 3400 3600
1465 1570 1674 1779 1884
1327 1362 1401 1442 1485
1.20 1.33 1.47 1.62 1.78
1379 1413 1448 1487 1528
1.33 1.46 1.60 1.75 1.92
1430 1462 1495 1531 1570
1.45 1.59 1.74 1.90 2.07
1527 1556 1587 1619 1654
1.72 1.86 2.01 2.18 2.37
1618 1646 1674 1705 1737
2.00 2.14 2.30 2.48 2.68
1707 1730 1758 1786 1816
3800 4000 4400 4800 5200
1988 2093 2302 2511 2721
1531 1578 1677 1780 1887
1.95 2.13 2.55 3.02 3.56
1571 1617 1712 1812 1916
2.10 2.29 2.72 3.21 3.76
1611 1655 1747 1844 1946
2.25 2.45 2.90 3.40 3.96
1691 1731 1816 1908 2005
2.57 2.78 3.25 3.78 4.37
1771 1806 1885 1972 2064
2.89 3.11 3.60 4.16 4.78
5600 6000 6400 6800 7200
2930 3139 3349 3558 3767
1997 2109 2224 2339 2457
4.18 4.87 5.66 6.54 7.51
2024 2134 2247 2361 2477
4.39 5.10 5.89 6.78 7.77
2051 2160 2271 2383 2498
4.60 5.32 6.13 7.02 8.02
2106 2210 2318 2428 2540
5.03 5.78 6.61 7.52 8.54
2161 2261 2366 2472 2581
7600 8000 8400
3977 4186 4395
2576 2695 2815
8.60 9.79 11.10
2595 2713 2833
8.86 10.07 11.38
2614 2731 2850
9.12 10.34 11.67
2653 2768
9.66 10.90
2692 2805
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2.29 2.44 2.61 2.79 2.99
1791 1813 1837 1865 1893
2.60 2.76 2.93 3.12 3.32
1893 1915 1940 1968
3.09 3.26 3.46 3.67
1971 1990 2013 2039
3.43 3.61 3.81 4.03
2063 2085 2108
3.97 4.17 4.40
1848 1881 1954 2035 2123
3.21 3.45 3.96 4.55 5.20
1923 1955 2022 2098 2181
3.55 3.79 4.33 4.94 5.61
1996 2026 2090 2161 2239
3.90 4.14 4.70 5.33 6.04
2066 2095 2156 2223 2297
4.26 4.51 5.08 5.73 6.46
2134 2162 2221 2285 2355
4.63 4.89 5.47 6.14 6.89
5.47 6.24 7.10 8.03 9.07
2215 2312 2413 2517 2623
5.92 6.71 7.59 8.56 9.61
2270 2363 2461 2562 2665
6.36 7.18 8.09 9.08 10.17
2324 2414 2508 2606 2708
6.81 7.66 8.59 9.61 10.72
2378 2465 2556 2651 2750
7.26 8.13 9.10 10.14 11.28
2432 2515 2604 2696 2792
7.71 8.62 9.61 10.68 11.85
10.22 11.47
2732 2842
10.78 12.05
2771
11.35
2812
11.94
2851
12.52
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
3400 3600 3800 4000 4400
1779 1884 1988 2093 2302
2155 2176 2200 2226 2284
4.55 4.77 5.02 5.28 5.87
2223 2242 2265 2290 2345
4.93 5.16 5.41 5.68 6.28
2308 2329 2353 2406
5.56 5.82 6.10 6.71
2373 2391 2413 2463
5.98 6.24 6.52 7.14
2452 2473 2520
6.66 6.95 7.58
2533 2578
7.40 8.04
2590 2632
7.84 8.49
2687
8.97
4800 5200 5600 6000 6400
2511 2721 2930 3139 3349
2345 2412 2485 2565 2650
6.55 7.32 8.17 9.10 10.11
2405 2469 2539 2615 2697
6.98 7.76 8.64 9.58 10.62
2463 2525 2592 2665 2745
7.41 8.21 9.10 10.08 11.15
2520 2581 2645 2715 2791
7.85 8.66 9.57 10.58 11.66
2575 2634 2697 2765 2838
8.30 9.12 10.05 11.07 12.18
2630 2687 2748 2814
8.77 9.59 10.53 11.57
2683 2740 2799
9.24 10.08 11.02
2735 2790 2849
9.72 10.57 11.53
6800 7200
3558 3767
2740 2834
11.21 12.41
2785
11.75
2829
12.30
The BHP shown does not include belt drive losses.
12
6"SP
RPM
11"SP
BHP
RPM
BHP
2741
9.44
2795
9.94
2787 2841
10.21 11.07
2838
10.71
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 20.00 in. Outlet Area = 2.29 sq. ft. inside Maximum BHP = .863 x (RPM/1000)3 Tip Speed, fpm = 5.24 x RPM Class I Class II
Size
2000
RPM 1996 RPM 2600
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1600 1800 2000 2200 2400
697 784 871 958 1046
492 529 567 608 650
0.10 0.13 0.15 0.19 0.23
544 576 610 646 685
0.13 0.16 0.19 0.23 0.27
596 622 652 685 720
0.17 0.20 0.24 0.28 0.32
644 667 694 723 756
0.21 0.24 0.28 0.32 0.37
689 711 735 761 790
0.24 0.28 0.32 0.37 0.42
732 752 774 798 825
0.29 0.32 0.36 0.41 0.47
773 791 812 835 860
0.33 0.37 0.41 0.46 0.52
865 883 903 926
0.46 0.51 0.56 0.62
949 968 988
0.62 0.67 0.74
1029 1047
0.79 0.86
2600 2800 3000 3200 3400
1133 1220 1307 1394 1481
693 736 781 826 871
0.27 0.32 0.38 0.45 0.52
725 766 809 851 895
0.32 0.37 0.44 0.50 0.58
758 796 837 878 920
0.37 0.43 0.49 0.56 0.64
790 827 865 904 945
0.42 0.48 0.55 0.63 0.71
823 857 893 931 970
0.48 0.54 0.61 0.69 0.77
855 887 921 957 995
0.53 0.60 0.67 0.75 0.84
887 917 949 984 1020
0.58 0.65 0.73 0.82 0.91
950 976 1005 1036 1069
0.69 0.77 0.85 0.95 1.05
1011 1035 1060 1088 1118
0.81 0.89 0.98 1.08 1.18
1068 1091 1115 1140 1167
0.93 1.02 1.11 1.21 1.32
3600 3800 4000 4400 4800
1568 1656 1743 1917 2091
917 963 1009 1102 1196
0.60 0.70 0.80 1.03 1.31
939 984 1029 1121 1213
0.67 0.76 0.87 1.10 1.39
963 1006 1050 1139 1230
0.73 0.83 0.94 1.18 1.47
986 1028 1071 1158 1247
0.80 0.90 1.01 1.26 1.55
1009 1050 1092 1177 1264
0.87 0.97 1.08 1.34 1.64
1033 1073 1113 1196 1281
0.94 1.04 1.16 1.42 1.72
1057 1095 1134 1215 1299
1.01 1.12 1.24 1.50 1.81
1104 1139 1177 1253 1334
1.15 1.27 1.39 1.67 1.99
1150 1184 1219 1292 1369
1.30 1.42 1.55 1.85 2.18
1197 1228 1261 1331 1404
1.45 1.57 1.71 2.02 2.37
5200 5600 6000 6400 6800
2265 2440 2614 2788 2963
1291 1386 1481 1576 1672
1.64 2.02 2.45 2.95 3.51
1306 1400 1494 1589 1683
1.72 2.11 2.55 3.05 3.62
1321 1414 1507 1601 1695
1.81 2.20 2.64 3.15 3.72
1337 1428 1520 1613 1706
1.90 2.29 2.74 3.26 3.83
1353 1443 1534 1625 1718
1.98 2.39 2.84 3.36 3.95
1368 1457 1547 1638 1729
2.08 2.48 2.95 3.47 4.06
1384 1472 1561 1651 1741
2.17 2.58 3.05 3.58 4.17
1416 1501 1588 1676 1765
2.36 2.79 3.26 3.80 4.41
1449 1531 1616 1702 1789
2.56 2.99 3.48 4.03 4.65
1481 1561 1644 1728 1813
2.76 3.21 3.71 4.27 4.89
7200 7600 8000 8500 9000
3137 3311 3485 3703 3921
1767 1863 1959 2079 2199
4.13 4.83 5.61 6.70 7.92
1778 1874 1969 2088 2208
4.25 4.96 5.74 6.83 8.06
1789 1884 1979 2098 2217
4.36 5.08 5.87 6.97 8.20
1800 1894 1989 2107 2226
4.48 5.20 5.99 7.10 8.35
1811 1904 1998 2116 2234
4.60 5.32 6.12 7.24 8.49
1822 1915 2008 2125 2243
4.71 5.45 6.25 7.37 8.63
1833 1925 2018 2134 2251
4.83 5.57 6.38 7.51 8.77
1855 1946 2037 2153 2269
5.08 5.82 6.64 7.79 9.07
1878 1967 2057 2171 2286
5.33 6.08 6.92 8.07 9.36
1900 1989 2078 2190 2304
5.58 6.35 7.19 8.36 9.66
9500 10000 10500
4139 4357 4575
2319 2440 2560
9.28 10.79 12.45
2328 2448 2568
9.42 10.94 12.62
2336 2456 2575
9.58 11.10 12.78
2345 2464 2583
9.73 11.26 12.95
2353 2472 2590
9.88 11.42 13.12
2361 2480 2598
10.03 11.58 13.29
2369 2487
10.18 11.74
2385 2502
10.48 12.05
2402 2518
10.80 12.38
2418 2533
11.11 12.70
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2400 2600 2800 3000 3200
1046 1133 1220 1307 1394
1104 1123 1144 1167 1190
0.98 1.06 1.15 1.24 1.35
1159 1176 1195 1217 1239
1.12 1.19 1.28 1.38 1.49
1227 1245 1265 1287
1.34 1.43 1.53 1.64
1340 1357 1377
1.73 1.84 1.96
1445 1461
2.17 2.29
1544
2.64
3400 3600 3800 4000 4400
1481 1568 1656 1743 1917
1216 1243 1272 1303 1369
1.47 1.60 1.73 1.88 2.20
1263 1289 1315 1344 1407
1.61 1.75 1.89 2.04 2.38
1309 1333 1359 1386 1445
1.77 1.90 2.05 2.21 2.55
1397 1420 1443 1468 1520
2.08 2.23 2.38 2.55 2.92
1481 1502 1523 1546 1594
2.42 2.57 2.73 2.90 3.29
1560 1579 1599 1621 1667
4800 5200 5600 6000 6400
2091 2265 2440 2614 2788
1439 1514 1591 1671 1754
2.56 2.97 3.42 3.93 4.51
1474 1546 1622 1700 1780
2.75 3.17 3.64 4.17 4.75
1509 1579 1652 1728 1806
2.94 3.38 3.87 4.41 5.00
1579 1643 1712 1784 1859
3.33 3.80 4.31 4.88 5.50
1648 1707 1771 1840 1911
3.73 4.22 4.76 5.35 6.00
6800 7200 7600 8000 8500
2963 3137 3311 3485 3703
1838 1923 2010 2098 2209
5.14 5.84 6.62 7.47 8.65
1862 1946 2032 2118 2228
5.40 6.11 6.90 7.76 8.95
1887 1969 2053 2139 2247
5.65 6.38 7.17 8.05 9.25
1936 2016 2097 2180 2286
6.18 6.93 7.74 8.64 9.87
1986 2062 2141 2222 2325
9000 9500 10000
3921 4139 4357
2321 2435 2549
9.97 11.43 13.03
2339 2451 2565
10.28 11.75 13.37
2357 2468 2581
10.60 12.07 13.71
2393 2502
11.23 12.75
2430 2537
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2.78 2.93 3.10 3.27 3.68
1638 1654 1672 1692 1736
3.15 3.31 3.48 3.66 4.07
1727 1743 1762 1803
3.70 3.88 4.07 4.49
1798 1812 1829 1868
4.11 4.29 4.49 4.92
1880 1895 1931
4.72 4.92 5.36
1716 1771 1831 1895 1964
4.13 4.65 5.21 5.83 6.51
1783 1834 1890 1951 2016
4.55 5.08 5.67 6.32 7.02
1848 1897 1949 2006 2067
4.97 5.53 6.14 6.81 7.53
1911 1958 2007 2061 2119
5.41 5.98 6.61 7.30 8.05
1972 2017 2064 2115 2171
5.87 6.44 7.09 7.80 8.58
6.71 7.49 8.33 9.24 10.50
2035 2109 2186 2263 2364
7.25 8.05 8.92 9.86 11.14
2084 2155 2229 2305 2403
7.78 8.62 9.52 10.48 11.80
2133 2202 2273 2347 2442
8.33 9.18 10.11 11.11 12.46
2182 2248 2317 2389 2481
8.87 9.76 10.71 11.73 13.12
2230 2294 2361 2430 2521
9.42 10.34 11.31 12.36 13.78
11.89 13.43
2466 2571
12.57 14.12
2503
13.24
2540
13.93
2577
14.63
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4000 4400 4800 5200 5600
1743 1917 2091 2265 2440
1959 1992 2031 2075 2121
5.37 5.82 6.34 6.92 7.58
2053 2089 2131 2176
6.30 6.82 7.41 8.09
2112 2146 2185 2229
6.78 7.32 7.92 8.60
2169 2201 2240 2281
7.27 7.82 8.44 9.12
2256 2292 2333
8.34 8.97 9.67
2311 2343 2382
8.88 9.51 10.22
2363 2395 2432
9.41 10.06 10.78
2445 2480
10.62 11.36
2495 2528
11.20 11.93
2543 2576
11.77 12.53
6000 6400 6800 7200 7600
2614 2788 2963 3137 3311
2169 2222 2279 2340 2404
8.31 9.11 9.98 10.92 11.92
2222 2273 2327 2385 2448
8.82 9.65 10.54 11.50 12.53
2275 2324 2375 2431 2491
9.35 10.19 11.10 12.09 13.14
2326 2373 2423 2477 2534
9.89 10.74 11.67 12.69 13.76
2376 2422 2471 2522 2577
10.44 11.30 12.25 13.28 14.38
2425 2470 2517 2567
11.00 11.87 12.83 13.88
2473 2516 2563
11.58 12.45 13.43
2520 2564
12.15 13.06
2567
12.76
8000 8500
3485 3703
2472 2560
13.00 14.46
2513 2598
13.63 15.12
2554
14.27
2595
14.92
The BHP shown does not include belt drive losses.
The performance shown is for fan with outlet duct.
13
Performance Data
Wheel Diameter = 22.25 in. Outlet Area = 2.85 sq. ft. inside Maximum BHP = 1.48 x (RPM/1000)3 Tip Speed, fpm = 5.83 x RPM
Size
2225
SISW
Class I Class II
RPM 1802 RPM 2347
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2400 2600 2800
634 704 845 915 986
420 445 499 528 558
0.11 0.13 0.18 0.21 0.25
472 492 539 564 592
0.15 0.17 0.23 0.26 0.30
520 537 577 601 625
0.19 0.21 0.28 0.32 0.36
565 580 616 636 659
0.23 0.26 0.33 0.37 0.41
607 621 654 672 692
0.28 0.31 0.38 0.42 0.47
647 659 689 706 725
0.33 0.36 0.43 0.48 0.53
696 724 740 757
0.41 0.49 0.54 0.59
788 802 818
0.61 0.66 0.72
849 861 876
0.75 0.80 0.86
918 930
0.94 1.00
3000 3200 3400 3600 3800
1056 1126 1197 1267 1338
589 620 651 683 716
0.29 0.33 0.38 0.44 0.50
620 649 679 709 740
0.34 0.39 0.45 0.50 0.57
651 679 707 735 765
0.40 0.46 0.51 0.57 0.64
683 708 734 762 790
0.46 0.52 0.58 0.64 0.71
714 737 762 788 815
0.53 0.58 0.65 0.72 0.79
745 766 790 814 839
0.59 0.65 0.72 0.79 0.87
776 795 817 840 864
0.65 0.72 0.78 0.86 0.94
835 853 871 891 913
0.78 0.85 0.93 1.01 1.10
891 907 924 942 962
0.92 0.99 1.07 1.16 1.25
944 959 975 992 1010
1.07 1.15 1.23 1.32 1.42
4000 4200 4600 4800 5000
1408 1478 1619 1690 1760
749 782 848 882 915
0.57 0.64 0.81 0.91 1.01
772 803 868 901 933
0.64 0.72 0.89 0.99 1.10
795 826 888 920 952
0.71 0.79 0.97 1.08 1.19
819 848 908 939 970
0.79 0.87 1.06 1.16 1.28
842 870 929 959 989
0.87 0.95 1.15 1.25 1.37
866 893 949 978 1008
0.95 1.04 1.24 1.35 1.46
889 915 970 998 1026
1.03 1.12 1.33 1.44 1.56
936 960 1011 1037 1064
1.19 1.29 1.51 1.63 1.76
982 1004 1051 1076 1102
1.35 1.46 1.69 1.82 1.96
1028 1048 1092 1115 1139
1.52 1.64 1.88 2.02 2.16
5500 6000 6500 7000 7500
1936 2112 2288 2464 2640
1000 1086 1171 1258 1344
1.31 1.67 2.08 2.57 3.12
1016 1100 1185 1270 1356
1.40 1.77 2.19 2.68 3.24
1033 1115 1198 1283 1367
1.50 1.86 2.29 2.79 3.36
1049 1130 1212 1295 1379
1.59 1.97 2.41 2.91 3.48
1066 1146 1226 1308 1391
1.69 2.08 2.52 3.03 3.61
1083 1161 1240 1321 1403
1.80 2.18 2.63 3.15 3.74
1100 1176 1254 1334 1415
1.90 2.29 2.75 3.27 3.87
1134 1208 1283 1360 1439
2.11 2.52 2.99 3.53 4.13
1169 1239 1312 1387 1464
2.33 2.75 3.24 3.79 4.41
1203 1270 1341 1414 1489
2.55 2.99 3.49 4.05 4.69
8000 8500 9000 9500 10000
2816 2992 3168 3344 3520
1430 1517 1604 1691 1778
3.75 4.47 5.27 6.16 7.15
1441 1528 1614 1700 1787
3.88 4.60 5.41 6.31 7.31
1452 1538 1624 1710 1796
4.01 4.74 5.55 6.46 7.47
1463 1548 1633 1719 1805
4.14 4.87 5.70 6.61 7.63
1474 1558 1643 1728 1813
4.27 5.01 5.84 6.76 7.79
1485 1569 1653 1737 1822
4.40 5.15 5.99 6.92 7.95
1497 1579 1662 1746 1830
4.54 5.30 6.14 7.08 8.11
1519 1600 1682 1765 1848
4.82 5.59 6.45 7.39 8.44
1542 1622 1702 1784 1866
5.11 5.89 6.75 7.72 8.78
1565 1643 1722 1803 1884
5.40 6.19 7.08 8.05 9.12
10500 11000 12000 13000
3696 3872 4224 4576
1865 1952 2127 2302
8.24 9.44 12.19 15.43
1874 1960 2134 2309
8.41 9.62 12.38 15.63
1882 1969 2142 2316
8.58 9.79 12.57 15.83
1891 1977 2149 2322
8.75 9.97 12.76 16.04
1899 1985 2157 2329
8.91 10.14 12.95 16.25
1907 1992 2164 2336
9.08 10.32 13.14 16.46
1915 2000 2171 2343
9.25 10.49 13.33 16.67
1932 2016 2185
9.59 10.85 13.71
1948 2032 2200
9.94 11.21 14.11
1965 2048 2214
10.30 11.58 14.50
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2800 3200 3400 3600 3800
986 1126 1197 1267 1338
982 1008 1023 1039 1056
1.16 1.31 1.39 1.48 1.58
1056 1070 1085 1101
1.47 1.56 1.66 1.76
1102 1114 1129 1144
1.64 1.74 1.84 1.94
1201 1213 1226
2.11 2.21 2.32
1292 1304
2.61 2.73
1379
3.16
4000 4200 4500 4800 5000
1408 1478 1584 1690 1760
1074 1092 1122 1154 1176
1.69 1.81 2.00 2.21 2.36
1117 1135 1163 1192 1214
1.87 1.99 2.19 2.41 2.57
1160 1176 1203 1231 1250
2.06 2.18 2.39 2.61 2.77
1240 1255 1280 1305 1323
2.44 2.57 2.79 3.03 3.20
1316 1330 1353 1377 1394
2.86 2.99 3.21 3.46 3.64
1390 1402 1422 1445 1461
5200 5500 6000 6500 7000
1830 1936 2112 2288 2464
1200 1237 1302 1370 1440
2.52 2.77 3.23 3.74 4.32
1236 1271 1333 1399 1467
2.73 2.99 3.46 4.00 4.60
1271 1305 1364 1428 1494
2.94 3.21 3.70 4.26 4.87
1342 1372 1426 1485 1548
3.38 3.67 4.19 4.78 5.43
1411 1438 1487 1542 1601
3.83 4.13 4.69 5.31 5.99
7500 8000 8500 9000 9500
2640 2816 2992 3168 3344
1513 1588 1665 1743 1822
4.97 5.70 6.51 7.40 8.39
1538 1612 1687 1763 1841
5.26 6.00 6.82 7.73 8.73
1564 1635 1709 1784 1860
5.56 6.31 7.14 8.06 9.08
1613 1682 1752 1825 1899
6.15 6.93 7.80 8.75 9.79
1663 1729 1796 1866 1938
10500 11000 11500 12000
3696 3872 4048 4224
1982 2064 2146 2229
10.66 11.96 13.37 14.90
2000 2080 2161 2243
11.03 12.34 13.76 15.31
2017 2097 2177 2258
11.40 12.73 14.16 15.71
2052 2129 2208 2288
12.17 13.51 14.97 16.56
2087 2163 2240 2318
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3.29 3.43 3.66 3.92 4.10
1472 1489 1511 1525
3.90 4.13 4.40 4.58
1554 1573 1587
4.62 4.89 5.08
1618 1635 1647
5.13 5.41 5.60
1695 1706
5.94 6.14
1477 1503 1549 1598 1654
4.29 4.61 5.19 5.84 6.55
1541 1565 1608 1655 1706
4.78 5.10 5.70 6.38 7.13
1602 1625 1666 1711 1759
5.29 5.62 6.23 6.93 7.71
1661 1683 1723 1765 1811
5.81 6.15 6.78 7.49 8.30
1719 1739 1777 1818 1862
6.36 6.70 7.34 8.07 8.89
6.74 7.56 8.46 9.44 10.52
1713 1775 1840 1908 1978
7.34 8.20 9.13 10.15 11.25
1762 1821 1884 1949 2017
7.94 8.83 9.80 10.85 11.99
1811 1868 1928 1990 2056
8.55 9.48 10.48 11.57 12.74
1860 1914 1971 2032 2095
9.17 10.13 11.16 12.28 13.49
1909 1959 2015 2073 2134
9.79 10.78 11.85 13.01 14.25
12.94 14.32 15.81 17.41
2122 2196 2272
13.73 15.14 16.65
2157 2230 2304
14.54 15.97 17.51
2193 2263 2336
15.37 16.81 18.39
2228 2297
16.18 17.68
2263 2330
17.00 18.53
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5500 6000 6500 7000 7500
1936 2112 2288 2464 2640
1795 1830 1870 1912 1957
7.28 7.93 8.66 9.50 10.43
1849 1883 1920 1961 2004
7.87 8.53 9.28 10.12 11.07
1901 1933 1970 2009 2052
8.46 9.14 9.91 10.76 11.73
1953 1982 2018 2056 2097
9.07 9.77 10.55 11.42 12.39
2032 2064 2102 2141
10.41 11.20 12.09 13.07
2080 2111 2146 2186
11.07 11.88 12.77 13.78
2127 2156 2191 2228
11.74 12.56 13.48 14.48
2175 2201 2234 2271
12.43 13.26 14.18 15.21
2246 2277 2312
13.97 14.91 15.94
2290 2319
14.69 15.64
8000 8500 9000 9500 10000
2816 2992 3168 3344 3520
2005 2058 2113 2172 2234
11.45 12.54 13.72 15.00 16.37
2051 2100 2154 2211 2271
12.11 13.24 14.45 15.75 17.15
2096 2143 2195 2250 2308
12.78 13.94 15.19 16.53 17.96
2140 2186 2235 2288 2344
13.47 14.66 15.93 17.29 18.75
2184 2228 2275 2326
14.18 15.37 16.67 18.07
2226 2270 2316
14.87 16.09 17.43
2269 2311
15.60 16.84
2310
16.34
The BHP shown does not include belt drive losses. 14
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 24.50 in. Outlet Area = 3.45 sq. ft. inside Maximum BHP = 2.24 x (RPM/1000)3 Tip Speed, fpm = 6.41 x RPM Class I Class II Class III Volume O.Vel
Size
2450
RPM 1694 RPM 2208 RPM 2777 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2500 3000 3500 4000 4500
725 870 1015 1160 1305
421 478 538 600 663
0.17 0.24 0.33 0.45 0.59
464 509 565 624 685
0.21 0.29 0.39 0.52 0.67
503 545 592 648 706
0.27 0.35 0.46 0.59 0.75
538 579 621 671 727
0.32 0.41 0.53 0.67 0.84
572 611 653 696 748
0.38 0.47 0.59 0.74 0.92
605 640 681 723 769
0.43 0.54 0.67 0.82 1.01
636 669 708 750 792
0.50 0.61 0.74 0.90 1.10
723 758 798 841
0.75 0.89 1.06 1.27
776 806 843 885
0.89 1.05 1.24 1.45
852 887 925
1.22 1.42 1.64
5000 5500 6000 6500 7000
1450 1595 1740 1885 2030
728 793 859 925 992
0.77 0.99 1.24 1.54 1.88
747 811 875 940 1006
0.86 1.08 1.35 1.65 2.00
767 828 892 955 1020
0.95 1.18 1.45 1.76 2.13
786 846 908 970 1034
1.04 1.28 1.56 1.88 2.25
805 863 924 985 1048
1.13 1.38 1.66 1.99 2.37
823 881 939 1000 1061
1.23 1.48 1.77 2.11 2.50
842 898 955 1015 1075
1.32 1.58 1.88 2.23 2.62
883 932 986 1044 1102
1.51 1.79 2.11 2.47 2.88
927 969 1018 1072 1129
1.71 2.00 2.34 2.71 3.13
967 1009 1052 1101 1156
1.91 2.22 2.57 2.96 3.40
7500 8000 8500 9000 9500
2175 2320 2465 2610 2755
1059 1126 1193 1260 1328
2.28 2.73 3.24 3.81 4.44
1072 1138 1205 1272 1339
2.41 2.86 3.38 3.96 4.60
1085 1151 1217 1283 1349
2.54 3.00 3.53 4.11 4.76
1098 1163 1228 1294 1360
2.67 3.14 3.67 4.27 4.93
1111 1175 1240 1305 1370
2.80 3.28 3.82 4.42 5.09
1124 1187 1251 1316 1380
2.93 3.42 3.97 4.58 5.25
1137 1199 1262 1326 1391
3.06 3.56 4.12 4.73 5.42
1162 1223 1285 1348 1411
3.33 3.85 4.42 5.05 5.75
1187 1247 1307 1369 1431
3.61 4.14 4.72 5.37 6.08
1212 1270 1330 1390 1451
3.89 4.43 5.03 5.69 6.43
10000 11000 12000 13000 14000
2900 3190 3480 3771 4061
1396 1531 1667 1803 1939
5.14 6.76 8.70 10.98 13.64
1406 1541 1676 1811 1947
5.31 6.95 8.90 11.20 13.88
1416 1550 1684 1819 1954
5.48 7.14 9.11 11.43 14.12
1426 1559 1693 1827 1962
5.65 7.32 9.31 11.65 14.36
1436 1568 1701 1835 1969
5.82 7.51 9.51 11.87 14.60
1445 1577 1709 1842 1976
5.99 7.70 9.72 12.09 14.83
1455 1586 1718 1850 1983
6.17 7.88 9.93 12.31 15.07
1474 1604 1734 1865 1997
6.51 8.27 10.33 12.76 15.55
1494 1621 1750 1880 2011
6.87 8.65 10.75 13.19 16.02
1513 1638 1766 1895 2025
7.22 9.04 11.16 13.65 16.49
15000 16000 16500 17000 18000
4351 4641 4786 4931 5221
2076 2212 2281 2349 2486
16.71 20.20 22.12 24.16 28.61
2083 2219 2287 2355 2492
16.96 20.47 22.40 24.44 28.91
2090 2225 2293 2361 2497
17.21 20.74 22.68 24.73 29.21
2097 2232 2300 2368 2503
17.47 21.01 22.96 25.02 29.51
2104 2239 2306 2374 2509
17.74 21.29 23.24 25.31 29.82
2111 2245 2313 2380 2515
17.98 21.57 23.53 25.61 30.13
2117 2251 2319 2386 2521
18.23 21.83 23.81 25.90 30.44
2130 2264 2331 2398 2532
18.74 22.37 24.36 26.46 31.05
2143 2276 2343 2409 2543
19.26 22.91 24.91 27.03 31.65
2156 2288 2354 2421 2554
19.76 23.47 25.48 27.61 32.25
19000 20000
5511 5801
2623 2760
33.58 39.09
2628 2765
33.89 39.42
2634 2770
34.21 39.75
2639 2775
34.52 40.09
2645
34.85
2650
35.17
2656
35.50
2667
36.16
2677
36.79
2688
37.42
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4000 4500 5000 5500 6000
1160 1305 1450 1595 1740
928 965 1005 1047 1088
1.60 1.84 2.12 2.44 2.80
1008 1039 1076 1115 1157
1.98 2.25 2.55 2.89 3.28
1110 1143 1180 1219
2.67 3.01 3.37 3.78
1180 1207 1241 1279
3.12 3.47 3.87 4.30
1271 1301 1335
3.95 4.38 4.84
1358 1390
4.89 5.38
1415 1443
5.43 5.94
1496
6.51
1548
7.10
6500 7000 7500 8000 8500
1885 2030 2175 2320 2465
1133 1183 1237 1294 1352
3.21 3.66 4.17 4.72 5.34
1199 1242 1288 1340 1396
3.71 4.20 4.74 5.33 5.97
1261 1303 1345 1390 1440
4.24 4.75 5.31 5.94 6.62
1318 1360 1402 1444 1488
4.78 5.31 5.90 6.56 7.27
1373 1413 1455 1497 1539
5.34 5.90 6.51 7.18 7.92
1426 1464 1505 1546 1588
5.92 6.50 7.13 7.82 8.58
1477 1513 1553 1593 1635
6.51 7.11 7.77 8.49 9.27
1527 1562 1599 1639 1680
7.11 7.74 8.43 9.16 9.97
1576 1609 1645 1683 1723
9000 9500 10000 11000 12000
2610 2755 2900 3190 3480
1411 1471 1532 1655 1782
6.02 6.76 7.58 9.42 11.58
1452 1510 1569 1690 1813
6.68 7.46 8.30 10.20 12.43
1494 1550 1607 1724 1844
7.35 8.16 9.03 11.00 13.28
1536 1589 1644 1758 1876
8.04 8.88 9.77 11.81 14.15
1582 1629 1681 1792 1907
8.73 9.60 10.53 12.62 15.02
1630 1673 1720 1825 1937
9.42 10.32 11.29 13.44 15.90
1677 1719 1762 1859 1968
10.12 11.05 12.05 14.26 16.79
1722 1764 1805 1895 1999
10.84 11.79 12.82 15.10 17.69
13000 14000 15000 16000 17000
3771 4061 4351 4641 4931
1909 2039 2169 2300 2432
14.09 16.98 20.26 24.00 28.20
1939 2066 2194 2324 2454
15.01 17.94 21.31 25.08 29.33
1967 2093 2219 2347 2477
15.91 18.93 22.33 26.18 30.50
1996 2119 2244 2371 2498
16.84 19.91 23.38 27.28 31.65
2025 2146 2269 2394 2520
17.78 20.90 24.43 28.40 32.83
2053 2172 2294 2417 2542
18.71 21.90 25.50 29.51 34.01
2082 2199 2318 2440 2564
19.66 22.90 26.56 30.66 35.18
2110 2225 2343 2463 2586
18000 19000
5221 5511
2565 2698
32.86 38.06
2586 2718
34.08 39.36
2607 2738
35.29 40.61
2628 2757
36.54 41.90
2648 2777
37.74 43.21
2669
38.99
2689
40.24
2709
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
12"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6500 7000 7500 8000 8500
1885 2030 2175 2320 2465
1672 1700 1732 1768 1806
8.97 9.68 10.45 11.28 12.15
1789 1818 1850 1885
11.03 11.85 12.72 13.66
1901 1929 1962
13.29 14.20 15.19
2008 2037
15.73 16.76
2085 2111
17.31 18.37
2184
20.02
9000 9500 10000 11000 12000
2610 2755 2900 3190 3480
1845 1886 1927 2011 2097
13.09 14.10 15.19 17.62 20.41
1923 1962 2002 2086 2169
14.66 15.72 16.85 19.37 22.24
1997 2034 2073 2155 2238
16.25 17.36 18.54 21.14 24.10
2069 2105 2142 2221 2304
17.87 19.04 20.28 22.97 26.01
2140 2174 2209 2285 2366
19.52 20.75 22.05 24.84 27.96
2210 2241 2275 2348 2426
13000 14000 15000 16000
3771 4061 4351 4641
2195 2303 2416 2532
23.52 27.00 30.89 35.21
2257 2356 2464 2577
25.48 29.09 33.09 37.52
2322 2412 2513 2622
27.46 31.20 35.33 39.87
2388 2471 2564 2668
29.46 33.31 37.58 42.26
2450 2533 2619 2714
31.49 35.43 39.84 44.63
2508 2592 2675 2764
17000 18000
4931 5221
2650 2770
40.00 45.26
2693
42.44
2735
44.88
The BHP shown does not include belt drive losses.
14"SP
6-1/2"SP RPM
BHP
7.71 8.38 9.09 9.85 10.68
1624 1655 1689 1726 1765
8.33 9.03 9.76 10.56 11.41
1764 1807 1849 1933 2030
11.58 12.55 13.60 15.94 18.59
1805 1847 1889 1972 2063
12.33 13.32 14.39 16.78 19.50
20.62 23.93 27.64 31.77 36.40
2138 2251 2367 2486 2607
21.58 24.94 28.71 32.93 37.57
2167 2278 2392 2509 2628
22.56 25.99 29.81 34.05 38.78
41.47
2730
42.75
2750
44.00
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
21.22 22.50 23.85 26.75 29.96
2348 2373 2402 2468 2542
24.74 26.07 27.50 30.63 34.07
2526 2584 2652
31.31 34.63 38.26
2698 2760
38.69 42.54
2755
40.82
33.56 37.59 42.08 47.00
2620 2703
37.83 42.03
2727
42.23
The performance shown is for fan with outlet duct.
15
Performance Data
Wheel Diameter = 27.00 in. Outlet Area = 4.19 sq. ft. inside Maximum BHP = 3.64 x (RPM/1000)3 Tip Speed, fpm = 7.07 x RPM
Size
2700
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1538 RPM 2003 RPM 2520 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3000 3500 4000 4500 5000
716 836 955 1075 1194
379 421 465 511 558
0.20 0.26 0.35 0.45 0.58
418 451 491 534 579
0.25 0.33 0.42 0.54 0.67
454 485 518 557 600
0.32 0.40 0.50 0.62 0.76
486 517 548 581 621
0.38 0.47 0.58 0.71 0.86
517 545 576 608 642
0.45 0.55 0.66 0.79 0.95
547 573 602 634 665
0.52 0.62 0.74 0.88 1.05
576 599 627 658 689
0.59 0.70 0.83 0.97 1.15
650 674 703 734
0.87 1.01 1.17 1.35
719 745 774
1.19 1.37 1.56
763 785 812
1.39 1.57 1.78
5500 6000 6500 7000 7500
1313 1433 1552 1672 1791
605 653 702 751 801
0.73 0.91 1.12 1.36 1.63
625 671 719 767 815
0.83 1.01 1.23 1.48 1.76
644 689 735 782 829
0.93 1.12 1.34 1.60 1.89
663 706 751 797 843
1.03 1.23 1.46 1.73 2.02
682 724 767 812 858
1.13 1.34 1.58 1.85 2.16
701 741 783 827 872
1.24 1.45 1.70 1.98 2.29
721 758 799 842 885
1.34 1.57 1.82 2.11 2.43
765 796 832 871 913
1.56 1.80 2.07 2.37 2.71
805 836 868 902 941
1.78 2.03 2.32 2.64 2.99
842 873 904 936 970
2.01 2.28 2.58 2.91 3.28
8000 8500 9000 9500 10000
1911 2030 2149 2269 2388
850 900 950 1000 1050
1.94 2.29 2.68 3.11 3.59
864 913 962 1011 1061
2.08 2.43 2.83 3.27 3.76
877 925 974 1023 1072
2.22 2.58 2.99 3.44 3.94
891 938 986 1034 1083
2.36 2.73 3.14 3.60 4.11
904 951 998 1046 1094
2.50 2.88 3.30 3.77 4.28
917 963 1010 1057 1104
2.64 3.03 3.46 3.94 4.46
930 975 1021 1068 1115
2.79 3.18 3.62 4.10 4.64
956 1000 1045 1090 1136
3.08 3.49 3.95 4.44 4.99
982 1024 1068 1112 1157
3.38 3.81 4.28 4.79 5.35
1008 1049 1091 1134 1178
3.68 4.12 4.61 5.14 5.71
11000 12000 13000 14000 15000
2627 2866 3105 3343 3582
1151 1252 1353 1454 1556
4.71 6.03 7.59 9.40 11.49
1161 1261 1362 1463 1564
4.89 6.23 7.81 9.64 11.74
1171 1270 1370 1471 1571
5.08 6.44 8.03 9.88 12.01
1181 1280 1379 1479 1579
5.27 6.64 8.25 10.12 12.26
1191 1289 1387 1486 1586
5.46 6.85 8.48 10.35 12.51
1200 1297 1396 1494 1593
5.65 7.05 8.70 10.60 12.76
1210 1307 1404 1502 1601
5.84 7.26 8.92 10.83 13.02
1229 1324 1420 1517 1615
6.23 7.68 9.37 11.31 13.53
1248 1342 1436 1532 1629
6.62 8.10 9.82 11.80 14.05
1267 1359 1453 1547 1643
7.01 8.53 10.28 12.28 14.57
16000 17000 18000 19000 20000
3821 4060 4299 4537 4776
1658 1759 1861 1963 2066
13.87 16.56 19.59 22.96 26.71
1665 1766 1868 1970 2071
14.14 16.85 19.89 23.28 27.05
1672 1773 1874 1976 2077
14.42 17.14 20.20 23.60 27.38
1679 1780 1881 1982 2083
14.69 17.44 20.51 23.93 27.72
1686 1787 1887 1988 2089
14.96 17.72 20.82 24.26 28.07
1693 1793 1893 1994 2095
15.23 18.00 21.12 24.59 28.42
1700 1799 1899 2000 2100
15.50 18.29 21.42 24.90 28.76
1713 1812 1911 2011 2111
16.05 18.87 22.03 25.54 29.42
1727 1825 1924 2022 2122
16.59 19.45 22.65 26.18 30.09
1740 1837 1935 2034 2133
17.14 20.02 23.25 26.84 30.78
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4500 5000 5500 6000 6500
1075 1194 1313 1433 1552
825 849 877 907 938
1.79 2.01 2.26 2.53 2.84
921 945 972 1001
2.48 2.75 3.05 3.39
990 1009 1033 1060
2.97 3.27 3.60 3.96
1072 1092 1117
3.81 4.16 4.55
1150 1171
4.74 5.15
1225
5.78
1278
6.43
7000 7500 8000 8500 9000
1672 1791 1911 2030 2149
970 1001 1035 1073 1114
3.18 3.57 3.99 4.45 4.95
1032 1064 1095 1126 1161
3.75 4.16 4.61 5.10 5.63
1089 1120 1151 1183 1214
4.35 4.78 5.25 5.76 6.33
1144 1173 1203 1234 1265
4.97 5.42 5.92 6.45 7.03
1196 1223 1252 1282 1313
5.61 6.08 6.60 7.16 7.77
1247 1272 1300 1329 1359
6.25 6.76 7.30 7.89 8.52
1297 1320 1346 1373 1402
9500 10000 11000 12000 13000
2269 2388 2627 2866 3105
1156 1198 1286 1377 1469
5.49 6.08 7.41 8.96 10.74
1199 1239 1324 1411 1501
6.21 6.83 8.22 9.82 11.67
1246 1282 1361 1445 1532
6.94 7.59 9.04 10.71 12.61
1297 1328 1399 1479 1564
7.67 8.35 9.87 11.60 13.56
1345 1376 1440 1514 1595
8.42 9.13 10.72 12.51 14.53
1390 1421 1484 1550 1627
9.20 9.93 11.56 13.42 15.51
14000 15000 16000 17000 18000
3343 3582 3821 4060 4299
1562 1657 1753 1850 1947
12.78 15.08 17.70 20.62 23.86
1592 1685 1779 1874 1970
13.77 16.14 18.81 21.78 25.11
1622 1713 1805 1899 1993
14.77 17.21 19.93 22.98 26.34
1651 1740 1831 1923 2016
15.78 18.28 21.07 24.17 27.60
1680 1767 1856 1947 2039
16.81 19.36 22.22 25.37 28.87
1709 1795 1882 1971 2061
19000 20000 21000
4537 4776 5015
2045 2143 2242
27.47 31.46 35.83
2067 2164 2262
28.77 32.80 37.23
2088 2185 2282
30.07 34.19 38.67
2110 2205 2301
31.40 35.54 40.10
2132 2226 2321
32.71 36.96 41.54
2153 2246 2340
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
6-1/2"SP
RPM
BHP
RPM
BHP
6.91 7.46 8.02 8.63 9.29
1346 1367 1391 1417 1445
7.60 8.16 8.76 9.40 10.08
1413 1435 1460 1486
8.88 9.50 10.17 10.89
1459 1478 1502 1527
9.62 10.26 10.96 11.70
1433 1464 1526 1589 1659
9.99 10.75 12.42 14.34 16.50
1474 1505 1567 1629 1694
10.81 11.58 13.30 15.26 17.48
1515 1544 1605 1668 1730
11.64 12.43 14.20 16.20 18.47
1554 1582 1642 1705 1767
12.47 13.30 15.11 17.16 19.47
17.85 20.46 23.36 26.59 30.14
1738 1822 1907 1995 2084
18.89 21.57 24.54 27.81 31.43
1768 1849 1933 2019 2107
19.94 22.67 25.70 29.06 32.71
1799 1876 1958 2042 2129
21.01 23.81 26.89 30.28 34.02
1832 1904 1983 2066 2152
22.08 24.93 28.08 31.55 35.32
34.05 38.32 43.02
2175 2267 2359
35.39 39.74 44.45
2196 2287 2379
36.74 41.14 45.93
2217 2307 2398
38.10 42.55 47.40
2238 2327 2417
39.46 44.00 48.87
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
8000 8500 9000 9500 10000
1911 2030 2149 2269 2388
1522 1543 1566 1592 1620
11.04 11.76 12.52 13.32 14.17
1624 1645 1668 1693
13.39 14.21 15.07 15.98
1721 1741 1764
15.94 16.85 17.81
1813 1834
18.68 19.68
1902
21.61
1971
23.61
11000 12000 13000 14000 15000
2627 2866 3105 3343 3582
1678 1740 1803 1865 1933
16.03 18.13 20.49 23.13 26.06
1749 1808 1870 1933 1995
17.94 20.12 22.56 25.30 28.34
1816 1873 1933 1995 2058
19.89 22.16 24.70 27.51 30.65
1882 1935 1994 2055 2118
21.87 24.25 26.89 29.79 33.01
1946 1996 2052 2112 2174
23.88 26.38 29.12 32.11 35.42
2009 2056 2110 2167 2227
16000 17000 18000 19000 20000
3821 4060 4299 4537 4776
2009 2090 2174 2260 2347
29.27 32.78 36.63 40.86 45.40
2063 2138 2218 2302 2387
31.68 35.32 39.28 43.62 48.29
2120 2188 2263 2344 2427
34.10 37.88 41.96 46.40 51.23
2179 2242 2311 2386 2467
36.54 40.44 44.66 49.21 54.14
2236 2298 2362 2431 2507
39.03 43.02 47.38 52.07 57.09
2289 2352 2414 2478
21000
5015
2436
50.40
2474
53.36
2512
56.39
16
6"SP
BHP
CFM
The BHP shown does not include belt drive losses.
5-1/2"SP RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
25.95 28.55 31.39 34.49 37.87
2133 2173 2221 2274 2331
30.21 33.00 36.04 39.34 42.91
2286 2328 2377 2430
37.56 40.80 44.34 48.11
2434 2476
45.74 49.40
2485
48.21
41.57 45.64 50.10 54.94
2391 2452 2515
46.82 51.03 55.62
2487
52.17
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 30.00 in. Outlet Area = 5.17 sq. ft. inside Maximum BHP = 6.16 x (RPM/1000)3 Tip Speed, fpm = 7.85 x RPM Class I Class II Class III Volume O.Vel
Size
3000
RPM 1383 RPM 1802 RPM 2267 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3500 4000 4500 5000 5500
677 774 870 967 1064
330 359 390 423 456
0.22 0.28 0.35 0.44 0.55
367 390 416 446 477
0.29 0.36 0.44 0.54 0.65
400 422 445 470 498
0.36 0.44 0.53 0.63 0.75
430 451 473 496 520
0.44 0.52 0.62 0.73 0.86
458 477 499 522 544
0.52 0.61 0.71 0.83 0.96
486 503 523 545 568
0.61 0.70 0.81 0.93 1.07
527 546 567 590
0.79 0.91 1.04 1.18
576 591 609 630
0.99 1.12 1.26 1.42
634 649 668
1.34 1.49 1.67
688 705
1.73 1.92
6000 6500 7000 7500 8000
1161 1257 1354 1451 1548
490 525 559 595 630
0.67 0.81 0.97 1.16 1.37
510 543 576 611 645
0.78 0.93 1.10 1.29 1.51
529 561 593 626 660
0.89 1.04 1.22 1.42 1.65
548 578 610 642 674
1.00 1.17 1.35 1.56 1.79
569 596 626 657 689
1.12 1.29 1.48 1.70 1.94
591 615 643 673 703
1.23 1.41 1.62 1.84 2.09
612 635 660 688 718
1.35 1.54 1.75 1.98 2.24
652 675 698 721 747
1.60 1.80 2.02 2.27 2.54
689 711 734 757 780
1.86 2.07 2.30 2.56 2.85
724 745 767 790 813
2.13 2.35 2.59 2.86 3.16
8500 9000 9500 10000 11000
1644 1741 1838 1934 2128
666 702 738 774 847
1.60 1.86 2.15 2.47 3.21
680 715 751 786 858
1.75 2.02 2.32 2.65 3.41
694 728 763 798 869
1.90 2.18 2.48 2.82 3.59
708 741 776 810 880
2.05 2.34 2.65 3.00 3.79
722 754 788 822 890
2.21 2.50 2.82 3.17 3.98
735 767 800 833 901
2.36 2.66 2.99 3.35 4.17
749 780 812 845 912
2.52 2.83 3.17 3.53 4.37
776 806 837 868 933
2.84 3.16 3.52 3.90 4.77
804 832 861 891 954
3.16 3.50 3.87 4.28 5.17
836 859 886 914 975
3.49 3.85 4.24 4.65 5.58
12000 13000 14000 15000 16000
2321 2515 2708 2902 3095
920 993 1066 1140 1214
4.10 5.13 6.33 7.71 9.29
930 1003 1075 1149 1222
4.30 5.35 6.57 7.97 9.56
940 1012 1084 1157 1230
4.51 5.58 6.81 8.22 9.83
950 1021 1093 1165 1237
4.71 5.80 7.05 8.48 10.10
960 1030 1101 1173 1245
4.92 6.02 7.29 8.74 10.38
970 1040 1110 1181 1252
5.13 6.25 7.53 8.99 10.65
980 1049 1118 1189 1260
5.35 6.48 7.78 9.25 10.92
999 1067 1135 1205 1275
5.78 6.94 8.27 9.77 11.48
1019 1085 1152 1220 1289
6.21 7.40 8.76 10.31 12.03
1038 1102 1169 1236 1304
6.65 7.87 9.26 10.83 12.60
17000 18000 19000 20000 22000
3288 3482 3675 3869 4256
1288 1362 1436 1510 1659
11.06 13.06 15.29 17.76 23.48
1295 1369 1443 1517 1665
11.36 13.37 15.61 18.09 23.85
1303 1376 1450 1523 1670
11.64 13.68 15.94 18.44 24.22
1310 1383 1456 1529 1676
11.93 13.98 16.26 18.78 24.60
1317 1390 1463 1536 1682
12.22 14.28 16.58 19.12 24.98
1324 1396 1469 1542 1688
12.52 14.59 16.90 19.45 25.35
1331 1403 1475 1548 1693
12.80 14.91 17.22 19.79 25.72
1345 1416 1488 1560 1704
13.39 15.51 17.87 20.49 26.46
1359 1430 1500 1571 1715
13.98 16.14 18.52 21.15 27.23
1373 1443 1513 1583 1726
14.57 16.76 19.19 21.84 27.95
24000
4643
1808
30.33
1813
30.73
1818
31.14
1824
31.55
1829
31.96
1834
32.38
1839
32.78
1850
33.58
1859
34.39
1870
35.22
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5500 6000 6500 7000 7500
1064 1161 1257 1354 1451
741 758 777 798 821
2.18 2.40 2.64 2.90 3.18
823 840 858 879
2.97 3.24 3.52 3.83
900 915 934
3.86 4.17 4.51
971 986
4.85 5.20
1038
5.93
8000 8500 9000 9500 10000
1548 1644 1741 1838 1934
843 866 889 913 938
3.49 3.83 4.20 4.60 5.03
900 922 945 968 991
4.16 4.52 4.92 5.34 5.80
953 974 996 1019 1042
4.87 5.25 5.67 6.12 6.60
1004 1024 1044 1066 1088
5.60 6.01 6.45 6.92 7.43
1053 1071 1091 1111 1132
11000 12000 13000 14000 15000
2128 2321 2515 2708 2902
996 1057 1120 1185 1251
5.99 7.09 8.34 9.77 11.37
1039 1095 1155 1218 1282
6.83 8.00 9.31 10.80 12.45
1087 1135 1191 1250 1312
7.68 8.91 10.29 11.83 13.55
1134 1180 1228 1283 1343
8.55 9.84 11.28 12.89 14.67
16000 17000 18000 19000 20000
3095 3288 3482 3675 3869
1318 1387 1455 1525 1595
13.16 15.17 17.39 19.83 22.54
1347 1414 1481 1549 1618
14.31 16.38 18.65 21.17 23.92
1376 1441 1507 1574 1641
15.47 17.60 19.93 22.52 25.32
1404 1468 1532 1598 1664
22000 24000
4256 4643
1736 1879
28.70 36.02
1758 1898
30.22 37.65
1778 1918
31.75 39.30
1799 1937
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
5"SP
6"SP
6-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6.34 6.78 7.26 7.76 8.29
1102 1117 1135 1154 1175
7.11 7.58 8.07 8.60 9.16
1150 1163 1179 1197 1216
7.91 8.39 8.91 9.47 10.05
1208 1222 1238 1256
9.23 9.77 10.35 10.96
1264 1279 1296
10.65 11.25 11.89
1319 1335
12.18 12.84
1177 1223 1268 1318 1373
9.45 10.77 12.28 13.95 15.80
1218 1263 1309 1355 1405
10.37 11.74 13.29 15.02 16.94
1257 1301 1347 1393 1439
11.32 12.73 14.33 16.10 18.09
1296 1338 1384 1429 1475
12.28 13.75 15.39 17.20 19.24
1333 1374 1418 1464 1510
13.27 14.78 16.47 18.32 20.41
1370 1409 1452 1497 1543
14.28 15.84 17.56 19.48 21.59
16.64 18.83 21.24 23.86 26.75
1433 1494 1558 1622 1687
17.83 20.07 22.54 25.23 28.17
1461 1521 1583 1646 1710
19.04 21.34 23.86 26.62 29.61
1491 1548 1608 1669 1732
20.26 22.63 25.19 28.00 31.08
1522 1575 1633 1693 1755
21.47 23.90 26.55 29.42 32.52
1555 1604 1658 1717 1777
22.69 25.18 27.89 30.83 34.01
1588 1634 1685 1741 1799
23.92 26.48 29.26 32.25 35.48
33.28 40.95
1820 1956
34.84 42.63
1840 1975
36.38 44.29
1861 1994
37.97 46.01
1882 2012
39.53 47.68
1902 2031
41.15 49.42
1922 2050
42.73 51.11
10"SP
11"SP
12"SP
14"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
1934 2128 2321 2515 2708
1373 1406 1444 1485 1529
13.80 15.29 16.92 18.68 20.65
1476 1511 1550 1591
17.34 19.08 20.97 23.02
1546 1576 1612 1651
19.48 21.31 23.33 25.46
1640 1672 1709
23.60 25.70 27.96
1703 1732 1766
25.97 28.13 30.50
1791 1822
30.64 33.08
1931
38.42
15000 16000 17000 18000 19000
2902 3095 3288 3482 3675
1574 1620 1666 1713 1765
22.79 25.17 27.79 30.63 33.70
1635 1680 1726 1772 1818
25.28 27.72 30.41 33.37 36.57
1694 1737 1783 1828 1874
27.82 30.36 33.13 36.15 39.45
1750 1792 1836 1882 1927
30.42 33.06 35.91 39.02 42.39
1804 1845 1888 1932 1978
33.08 35.82 38.76 41.95 45.40
1858 1897 1938 1981 2026
35.78 38.61 41.65 44.94 48.49
1961 1997 2036 2076 2119
20000 22000 24000
3869 4256 4643
1822 1943 2068
36.99 44.35 52.84
1869 1983 2105
39.99 47.59 56.31
1920 2025 2142
43.01 50.87 59.83
1973 2068 2179
46.04 54.17 63.41
2024 2115 2217
49.13 57.48 66.97
2072 2162 2258
52.30 60.81 70.53
2163 2253
The BHP shown does not include belt drive losses.
5-1/2"SP
RPM
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
41.26 44.33 47.63 51.11 54.81
2063 2094 2128 2166 2207
46.97 50.21 53.68 57.39 61.32
2189 2219 2254
56.29 59.91 63.81
2235 2264
59.34 63.08
58.79 67.63
2249
65.49
The performance shown is for fan with outlet duct.
17
Performance Data
Wheel Diameter = 33.00 in. Outlet Area = 6.26 sq. ft. inside Maximum BHP = 10.2 x (RPM/1000)3 Tip Speed, fpm = 8.64 x RPM
Size
3300
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1246 RPM 1624 RPM 2042 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5000 5500 6000 6500 7000
799 879 959 1038 1118
330 354 378 403 428
0.36 0.44 0.53 0.64 0.76
356 377 399 422 446
0.45 0.54 0.64 0.75 0.88
383 401 420 442 464
0.55 0.64 0.75 0.87 1.00
408 425 442 462 482
0.65 0.75 0.86 0.99 1.13
433 448 464 482 501
0.76 0.86 0.98 1.11 1.26
456 470 486 502 520
0.88 0.98 1.10 1.24 1.39
480 492 506 522 539
1.00 1.11 1.23 1.37 1.53
524 534 546 560 575
1.25 1.37 1.51 1.65 1.82
574 584 596 610
1.65 1.80 1.96 2.13
621 631 644
2.10 2.27 2.46
7500 8000 8500 9000 9500
1198 1278 1358 1438 1518
454 479 505 531 557
0.90 1.05 1.22 1.41 1.62
471 496 521 546 572
1.03 1.19 1.37 1.57 1.79
487 511 536 560 585
1.15 1.33 1.52 1.73 1.96
504 527 550 574 599
1.29 1.46 1.66 1.88 2.12
521 542 565 588 612
1.43 1.61 1.81 2.03 2.28
539 559 580 602 625
1.57 1.76 1.96 2.19 2.44
556 575 595 616 638
1.71 1.91 2.12 2.36 2.61
591 608 626 645 665
2.01 2.21 2.44 2.69 2.96
624 640 657 674 693
2.32 2.53 2.77 3.03 3.32
657 671 687 703 720
2.66 2.88 3.12 3.39 3.68
10000 11000 12000 13000 14000
1598 1757 1917 2077 2237
583 635 688 742 795
1.84 2.37 2.99 3.72 4.56
597 649 701 753 806
2.03 2.57 3.21 3.96 4.82
611 662 713 765 817
2.21 2.78 3.43 4.20 5.08
623 674 724 775 827
2.38 2.97 3.65 4.44 5.34
636 685 735 786 837
2.55 3.16 3.87 4.67 5.60
648 696 746 796 847
2.72 3.34 4.07 4.90 5.85
660 708 756 806 856
2.89 3.53 4.27 5.12 6.09
686 730 777 825 874
3.26 3.91 4.68 5.56 6.57
712 753 797 844 892
3.63 4.31 5.10 6.00 7.04
738 777 818 863 909
4.00 4.72 5.53 6.46 7.51
15000 16000 17000 18000 19000
2396 2556 2716 2876 3036
849 903 958 1012 1066
5.52 6.62 7.86 9.25 10.79
859 913 966 1020 1074
5.80 6.92 8.17 9.58 11.15
869 922 975 1029 1082
6.08 7.22 8.50 9.92 11.50
879 931 984 1037 1090
6.36 7.51 8.81 10.26 11.86
888 940 992 1045 1098
6.64 7.82 9.13 10.59 12.21
898 949 1001 1053 1105
6.92 8.11 9.45 10.93 12.56
907 958 1009 1061 1113
7.18 8.40 9.75 11.26 12.92
924 975 1025 1076 1128
7.70 8.96 10.37 11.92 13.61
941 991 1041 1091 1142
8.22 9.51 10.97 12.55 14.31
957 1006 1056 1106 1156
8.71 10.06 11.54 13.19 14.97
20000 22000 24000 26000 28000
3195 3515 3834 4154 4473
1121 1230 1339 1449 1558
12.51 16.48 21.22 26.81 33.33
1128 1237 1346 1455 1564
12.89 16.89 21.67 27.30 33.84
1136 1244 1352 1461 1569
13.25 17.30 22.13 27.79 34.37
1143 1250 1358 1467 1575
13.63 17.71 22.57 28.29 34.90
1151 1257 1364 1472 1580
14.01 18.12 23.01 28.76 35.43
1158 1264 1371 1478 1586
14.37 18.54 23.46 29.23 35.94
1165 1271 1377 1484 1591
14.74 18.94 23.91 29.72 36.45
1180 1284 1389 1495 1602
15.49 19.75 24.80 30.71 37.50
1193 1297 1401 1506 1612
16.21 20.57 25.68 31.65 38.56
1207 1309 1413 1517 1622
16.93 21.36 26.58 32.61 39.56
30000
4793
1668
40.83
1673
41.38
1678
41.94
1684
42.50
1689
43.08
1694
43.64
1699
44.18
1709
45.29
1719
46.41
1728
47.54
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6500 7000 7500 8000 8500
1039 1118 1198 1278 1358
666 676 688 701 716
2.60 2.79 3.01 3.23 3.49
749 760 772
3.74 3.99 4.26
816 826
4.79 5.08
878
5.94
9000 9500 10000 11000 12000
1438 1518 1598 1757 1917
731 748 765 801 840
3.76 4.06 4.39 5.13 5.98
785 800 815 848 884
4.55 4.87 5.21 5.98 6.87
838 850 864 894 927
5.39 5.73 6.09 6.89 7.81
888 899 912 939 970
13000 14000 15000 16000 17000
2077 2237 2397 2556 2716
882 927 973 1021 1070
6.93 8.00 9.22 10.59 12.11
922 963 1007 1052 1099
7.89 9.03 10.28 11.69 13.25
963 1000 1041 1083 1128
8.87 10.06 11.38 12.83 14.44
18000 19000 20000 22000 24000
2876 3036 3195 3515 3834
1120 1170 1220 1322 1424
13.79 15.63 17.63 22.17 27.44
1147 1196 1245 1346 1447
14.99 16.91 18.98 23.71 29.16
1174 1221 1270 1368 1469
26000 28000 30000
4154 4474 4793
1528 1632 1738
33.59 40.59 48.62
1549 1652 1756
35.45 42.65 50.84
1570 1672 1775
Volume O.Vel
7"SP
8"SP
4"SP
4-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6.28 6.63 7.01 7.84 8.79
937 946 958 982 1010
7.19 7.56 7.97 8.84 9.82
993 1002 1025 1051
8.54 8.95 9.87 10.89
1046 1066 1090
9.98 10.94 12.00
1106 1128
12.03 13.14
1146 1166
13.16 14.31
1203
15.50
1003 1038 1076 1115 1157
9.88 11.11 12.49 14.01 15.66
1042 1075 1111 1148 1188
10.93 12.20 13.62 15.19 16.92
1080 1111 1145 1181 1218
12.04 13.33 14.78 16.39 18.17
1117 1147 1179 1213 1249
13.19 14.50 15.98 17.62 19.44
1154 1182 1213 1245 1280
14.37 15.71 17.22 18.88 20.74
1190 1216 1245 1277 1310
15.58 16.95 18.49 20.18 22.07
1225 1250 1278 1308 1340
16.81 18.24 19.80 21.52 23.44
16.21 18.18 20.32 25.18 30.85
1201 1247 1294 1390 1489
17.48 19.48 21.66 26.64 32.44
1229 1273 1318 1412 1510
18.79 20.83 23.05 28.13 34.05
1258 1300 1343 1434 1529
20.11 22.21 24.48 29.61 35.64
1287 1327 1368 1456 1549
21.44 23.60 25.93 31.13 37.24
1316 1354 1394 1479 1569
22.78 25.00 27.39 32.72 38.88
1345 1382 1420 1502 1590
24.14 26.41 28.86 34.30 40.54
1374 1409 1446 1525 1610
25.55 27.85 30.35 35.91 42.27
37.29 44.68 52.99
1590 1691 1793
39.12 46.63 55.18
1609 1709 1810
40.84 48.59 57.25
1628 1727 1828
42.61 50.45 59.33
1646 1744 1844
44.28 52.32 61.36
1664 1761 1860
46.04 54.17 63.33
1682 1778 1877
47.75 56.00 65.37
1701 1795 1892
49.55 57.88 67.28
9"SP
10"SP
11"SP
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 13000 14000 15000 16000
1917 2077 2237 2397 2556
1239 1259 1283 1309 1338
16.72 18.07 19.55 21.14 22.90
1327 1348 1372 1398
20.68 22.22 23.93 25.73
1411 1433 1457
25.00 26.77 28.69
1492 1514
29.71 31.74
1550 1570
32.75 34.84
1624
38.05
17000 18000 19000 20000 22000
2716 2876 3036 3195 3515
1369 1402 1436 1472 1549
24.84 26.96 29.29 31.83 37.54
1427 1457 1490 1524 1596
27.73 29.92 32.31 34.91 40.76
1483 1511 1542 1574 1643
30.74 32.98 35.42 38.08 44.06
1538 1564 1593 1623 1689
33.86 36.16 38.66 41.36 47.45
1592 1616 1643 1672 1734
37.06 39.44 42.00 44.77 50.96
1644 1667 1693 1720 1779
1717 1796 1881 1971
50.98 58.80 67.53 77.31
1760 1836 1917 2003
54.52 62.59 71.59 81.53
1802 1875 1953 2036
58.13 66.40 75.59 85.77
1844 1915 1989
18
5-1/2"SP
BHP
CFM
24000 3834 1631 43.98 1674 47.47 26000 4154 1719 51.33 1757 55.03 28000 4473 1812 59.73 1846 63.56 30000 4793 1908 69.26 1939 73.23 The BHP shown does not include belt drive losses.
5"SP
RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
40.33 42.80 45.45 48.28 54.58
1747 1767 1789 1813 1867
47.10 49.75 52.60 55.56 62.10
1863 1882 1903 1952
56.97 59.91 63.07 69.94
1973 1991 2035
67.60 70.85 78.04
2034
74.87
61.85 70.22 79.63
1927 1992
69.61 78.12
2007
77.64
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 36.50 in. Outlet Area = 7.65 sq. ft. inside Maximum BHP = 16.9 x (RPM/1000)3 Tip Speed, fpm = 9.56 x RPM Class I Class II Class III Volume O.Vel
Size
3650
RPM 1126 RPM 1467 RPM 1845 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
7000 8000 9000 10000 11000
914 1045 1175 1306 1437
330 366 403 441 479
0.6 0.8 1.0 1.4 1.7
349 383 419 456 493
0.7 0.9 1.2 1.5 1.9
370 401 434 470 506
0.8 1.1 1.4 1.7 2.1
391 419 450 483 519
1.0 1.2 1.5 1.9 2.3
411 437 466 497 531
1.1 1.4 1.7 2.1 2.5
431 455 482 512 544
1.3 1.5 1.9 2.2 2.7
450 473 498 526 557
1.4 1.7 2.0 2.4 2.9
487 507 530 555 583
1.7 2.0 2.4 2.8 3.3
523 540 560 584 609
2.1 2.4 2.8 3.2 3.7
572 590 612 635
2.8 3.2 3.6 4.1
12000 13000 14000 15000 16000
1567 1698 1828 1959 2090
518 557 596 635 675
2.1 2.6 3.2 3.9 4.6
531 569 607 646 685
2.4 2.9 3.5 4.2 4.9
543 581 619 657 695
2.6 3.1 3.7 4.4 5.2
555 592 629 667 705
2.8 3.3 4.0 4.7 5.5
566 603 639 677 714
3.0 3.6 4.2 5.0 5.8
578 613 649 686 723
3.2 3.8 4.5 5.2 6.1
589 624 659 695 732
3.4 4.0 4.7 5.5 6.4
613 645 678 713 749
3.8 4.5 5.2 6.0 6.9
637 667 698 732 766
4.3 4.9 5.7 6.5 7.4
661 689 719 750 783
4.7 5.4 6.2 7.1 8.0
17000 18000 19000 20000 21000
2220 2351 2481 2612 2743
714 754 794 834 874
5.5 6.4 7.4 8.6 9.9
724 763 803 842 882
5.8 6.7 7.8 9.0 10.3
733 772 811 850 890
6.1 7.1 8.2 9.4 10.7
743 781 820 858 897
6.4 7.4 8.5 9.7 11.1
752 790 828 867 905
6.7 7.7 8.9 10.1 11.4
761 799 836 874 913
7.0 8.1 9.2 10.5 11.8
769 807 844 882 920
7.3 8.4 9.6 10.8 12.2
786 823 860 897 935
7.9 9.0 10.2 11.5 13.0
802 838 874 911 949
8.5 9.6 10.9 12.2 13.7
818 853 889 925 962
9.1 10.2 11.5 12.9 14.4
22000 24000 26000 28000 30000
2873 3134 3395 3657 3918
914 994 1075 1156 1237
11.3 14.5 18.2 22.6 27.6
922 1001 1082 1162 1242
11.7 14.9 18.7 23.1 28.2
929 1008 1088 1168 1248
12.1 15.4 19.2 23.7 28.8
937 1015 1094 1174 1254
12.5 15.8 19.7 24.2 29.3
944 1022 1101 1180 1259
12.9 16.3 20.2 24.7 29.9
951 1029 1107 1186 1265
13.3 16.7 20.7 25.2 30.4
958 1035 1113 1191 1270
13.7 17.2 21.1 25.8 31.0
972 1048 1125 1203 1281
14.5 18.0 22.1 26.8 32.1
986 1061 1137 1214 1291
15.3 18.9 23.1 27.8 33.2
999 1074 1149 1225 1302
16.1 19.8 24.0 28.8 34.4
32000 34000 36000 38000
4179 4440 4701 4963
1318 1399 1480 1561
33.4 39.9 47.2 55.3
1323 1404 1484 1565
34.0 40.5 47.8 56.0
1328 1409 1489 1570
34.6 41.2 48.5 56.7
1334 1414 1494 1574
35.2 41.8 49.2 57.5
1339 1419 1499 1579
35.8 42.4 49.9 58.2
1344 1423 1503 1583
36.4 43.1 50.6 58.9
1349 1428 1508 1588
37.0 43.7 51.2 59.6
1359 1438 1517 1596
38.2 45.0 52.5 61.0
1369 1447 1526 1605
39.3 46.2 53.9 62.4
1379 1457 1535 1614
40.5 47.5 55.2 63.8
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
9000 10000 11000 12000 13000
1175 1306 1437 1567 1698
619 639 661 685 712
3.6 4.1 4.6 5.2 5.9
674 691 710 732 756
4.5 5.0 5.6 6.2 6.9
740 757 776 798
6.0 6.6 7.3 8.0
803 820 839
7.7 8.4 9.2
847 862 880
8.8 9.6 10.4
903 918
10.8 11.6
956
14000 15000 16000 17000 18000
1828 1959 2090 2220 2351
739 769 801 834 868
6.7 7.6 8.6 9.6 10.8
781 808 837 867 899
7.8 8.7 9.8 10.9 12.1
821 847 873 901 930
8.9 9.9 11.0 12.1 13.4
861 884 909 935 963
10.1 11.1 12.2 13.4 14.8
899 921 944 969 995
11.3 12.4 13.5 14.8 16.1
936 957 978 1002 1026
12.6 13.7 14.8 16.1 17.5
973 992 1012 1034 1057
19000 20000 21000 22000 24000
2481 2612 2743 2873 3134
903 939 975 1012 1086
12.2 13.6 15.2 16.8 20.6
932 966 1001 1036 1109
13.5 14.9 16.6 18.3 22.2
961 993 1026 1061 1131
14.8 16.4 18.0 19.8 23.8
991 1022 1053 1085 1153
16.3 17.8 19.5 21.3 25.5
1022 1050 1080 1111 1176
17.7 19.3 21.1 22.9 27.1
1052 1079 1107 1137 1199
19.1 20.8 22.6 24.6 28.9
26000 28000 30000 32000 34000
3395 3657 3918 4179 4440
1161 1236 1312 1389 1466
24.9 29.9 35.4 41.7 48.7
1183 1257 1332 1408 1484
26.7 31.8 37.6 44.0 51.2
1204 1277 1352 1426 1502
28.5 33.7 39.7 46.3 53.7
1224 1297 1370 1444 1519
30.2 35.6 41.7 48.5 56.0
1245 1316 1388 1462 1536
32.0 37.5 43.7 50.7 58.4
1265 1335 1406 1479 1552
36000 38000
4701 4963
1544 1622
56.5 65.2
1561 1638
59.2 68.0
1578 1654
61.8 70.8
1595 1670
64.4 73.5
1610 1686
66.9 76.3
1626 1701
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
BHP
12.9
994
14.3
13.9 15.0 16.2 17.6 19.0
1009 1026 1045 1066 1088
1082 1108 1135 1163 1223
20.6 22.3 24.2 26.2 30.6
33.8 39.4 45.7 52.8 60.7
1286 1354 1423 1495 1568
69.4 78.8
1641 1716
12"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
15000 16000 17000 18000 19000
1959 2090 2220 2351 2481
1125 1140 1158 1177 1197
20.9 22.2 23.7 25.3 27.0
1202 1217 1234 1253
25.4 27.0 28.6 30.4
1274 1289 1306
30.4 32.1 34.0
1344 1359
35.7 37.6
1410
41.4
1461
45.3
20000 21000 22000 24000 26000
2612 2743 2873 3134 3395
1219 1243 1267 1318 1373
28.8 30.8 32.9 37.7 43.2
1273 1294 1317 1366 1418
32.3 34.4 36.6 41.4 47.1
1325 1345 1366 1412 1462
35.9 38.0 40.3 45.3 51.0
1376 1394 1414 1457 1505
39.7 41.9 44.2 49.3 55.2
1426 1443 1461 1501 1547
43.5 45.8 48.2 53.4 59.4
1474 1490 1507 1545 1588
47.5 49.8 52.3 57.7 63.8
28000 30000 32000 34000 36000
3657 3918 4179 4440 4701
1433 1495 1561 1629 1700
49.3 56.0 63.6 71.9 81.3
1473 1532 1595 1661 1729
53.4 60.4 68.1 76.6 86.1
1514 1570 1630 1693 1758
57.5 64.8 72.7 81.4 91.0
1555 1608 1665 1725 1788
61.7 69.2 77.4 86.4 96.1
1595 1646 1701 1758 1819
66.1 73.7 82.1 91.3 101.3
1634 1684 1736 1791
70.6 78.2 86.7 96.2
38000
4963
1771
91.5
1799
96.5
1826
101.5
The BHP shown does not include belt drive losses.
5-1/2"SP RPM
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
15.3 16.5 17.7 19.0 20.5
1044 1059 1077 1097 1118
16.7 17.9 19.2 20.6 22.1
1078 1093 1109 1128 1148
18.1 19.4 20.7 22.1 23.7
1112 1137 1162 1189 1246
22.1 23.9 25.8 27.8 32.4
1141 1165 1190 1215 1270
23.7 25.5 27.4 29.5 34.1
1169 1192 1216 1242 1294
25.3 27.1 29.1 31.2 35.9
35.6 41.3 47.7 54.9 62.9
1308 1373 1441 1511 1583
37.5 43.2 49.7 57.1 65.2
1330 1393 1459 1528 1599
39.4 45.2 51.8 59.2 67.4
1352 1412 1477 1544 1614
41.3 47.3 53.9 61.4 69.7
71.7 81.5
1656 1730
74.1 84.0
1671 1744
76.5 86.5
1685 1758
78.9 89.0
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1582 1597 1631 1669
58.2 60.8 66.5 72.8
1684 1713 1748
69.6 75.7 82.4
1794 1824
85.2 92.1
1833
90.0
1711 1757 1806
79.9 87.7 96.5
1786 1829
89.6 97.7
The performance shown is for fan with outlet duct.
19
Performance Data
Wheel Diameter = 40.25 in. Outlet Area = 9.31 sq. ft. inside Maximum BHP = 27.5 x (RPM/1000)3 Tip Speed, fpm = 10.5 x RPM
Size
4025
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1021 RPM 1331 RPM 1674 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
7000 8000 9000 10000 11000
752 859 967 1074 1181
260 285 312 340 367
0.5 0.6 0.8 1.0 1.3
283 305 329 355 382
0.6 0.8 1.0 1.2 1.5
306 325 346 370 395
0.7 0.9 1.1 1.4 1.7
327 345 364 386 409
0.9 1.1 1.3 1.6 1.9
348 364 382 402 424
1.1 1.2 1.5 1.7 2.1
368 383 399 418 438
1.2 1.4 1.7 1.9 2.3
388 401 416 434 453
1.4 1.6 1.9 2.1 2.5
436 449 464 482
2.0 2.3 2.6 2.9
480 494 509
2.7 3.0 3.4
510 522 536
3.1 3.5 3.9
12000 13000 14000 15000 16000
1289 1396 1504 1611 1718
396 424 453 481 510
1.6 1.9 2.3 2.8 3.3
409 437 465 493 521
1.8 2.2 2.6 3.1 3.6
422 449 476 504 532
2.0 2.4 2.8 3.3 3.9
434 460 487 514 542
2.2 2.6 3.1 3.6 4.2
447 472 498 525 552
2.4 2.8 3.3 3.9 4.5
460 484 509 535 561
2.7 3.1 3.6 4.1 4.7
474 496 520 545 570
2.9 3.3 3.8 4.4 5.0
500 521 542 565 589
3.3 3.8 4.3 4.9 5.6
527 545 565 587 609
3.8 4.3 4.9 5.5 6.2
552 569 588 608 629
4.3 4.8 5.4 6.0 6.7
17000 18000 19000 20000 21000
1826 1933 2041 2148 2255
540 569 598 628 657
3.9 4.5 5.3 6.1 6.9
550 579 608 637 666
4.2 4.9 5.6 6.4 7.3
560 588 617 646 674
4.5 5.2 6.0 6.8 7.7
570 598 626 654 683
4.8 5.5 6.3 7.2 8.1
579 607 635 663 691
5.1 5.9 6.7 7.5 8.5
588 616 643 671 699
5.4 6.2 7.0 7.9 8.9
597 624 651 679 707
5.7 6.5 7.3 8.2 9.2
615 641 667 694 721
6.3 7.1 8.0 8.9 10.0
633 657 683 709 736
6.9 7.7 8.6 9.6 10.7
651 675 699 724 750
7.5 8.4 9.3 10.3 11.4
22000 24000 26000 28000 30000
2363 2577 2792 3007 3222
687 747 806 866 926
7.9 10.1 12.7 15.6 19.1
695 754 813 873 933
8.3 10.5 13.1 16.2 19.6
703 762 820 879 939
8.7 11.0 13.6 16.7 20.2
712 769 827 886 945
9.1 11.4 14.1 17.2 20.7
719 777 834 892 951
9.5 11.9 14.6 17.7 21.3
727 784 841 898 957
9.9 12.3 15.1 18.2 21.9
735 791 848 905 962
10.3 12.8 15.5 18.8 22.4
749 804 861 917 974
11.1 13.6 16.5 19.8 23.5
763 818 873 929 985
11.8 14.4 17.4 20.8 24.6
776 830 885 941 997
12.6 15.2 18.3 21.8 25.7
32000 34000 36000 38000 40000
3437 3651 3866 4081 4296
986 1047 1107 1167 1228
23.0 27.4 32.3 37.9 44.0
992 1052 1112 1172 1232
23.6 28.0 33.0 38.6 44.8
998 1058 1117 1177 1237
24.2 28.7 33.7 39.3 45.5
1004 1063 1122 1182 1242
24.8 29.3 34.4 40.0 46.3
1009 1068 1127 1187 1246
25.4 29.9 35.0 40.7 47.0
1015 1074 1133 1192 1251
26.0 30.6 35.7 41.4 47.7
1020 1079 1138 1196 1255
26.5 31.2 36.4 42.1 48.5
1031 1089 1147 1206 1264
27.7 32.4 37.7 43.6 50.0
1042 1100 1157 1215 1273
28.9 33.7 39.0 44.9 51.5
1053 1110 1167 1224 1282
30.1 34.9 40.4 46.4 52.9
44000
4725
1349
58.2
1353
59.1
1357
59.9
1361
60.7
1366
61.6
1370
62.4
1374
63.2
1382
64.8
1390
66.4
1398
68.1
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
1074 1181 1289 1396 1504
549 562 577 593 610
4.0 4.4 4.9 5.4 6.0
612 624 638 654
5.5 6.0 6.5 7.2
670 682 695
7.2 7.8 8.4
724 736
9.1 9.8
774
11.1
813
12.6
15000 16000 17000 18000 19000
1611 1718 1826 1933 2041
629 649 670 692 715
6.6 7.3 8.1 9.0 10.0
671 689 708 728 749
7.8 8.6 9.4 10.4 11.4
711 727 745 763 783
9.2 9.9 10.8 11.8 12.8
749 764 780 797 816
10.5 11.3 12.2 13.2 14.3
787 800 815 831 848
12.0 12.8 13.7 14.8 15.9
823 835 849 864 880
20000 21000 22000 24000 26000
2148 2255 2363 2577 2792
739 764 790 843 897
11.0 12.1 13.3 16.0 19.2
771 794 818 867 920
12.5 13.6 14.9 17.7 20.9
803 824 846 893 943
14.0 15.2 16.5 19.4 22.7
835 854 875 919 966
15.5 16.8 18.1 21.2 24.6
866 884 904 945 990
17.1 18.4 19.8 22.9 26.5
28000 30000 32000 34000 36000
3007 3222 3437 3651 3866
952 1007 1063 1120 1176
22.7 26.7 31.2 36.2 41.7
973 1028 1083 1139 1195
24.6 28.8 33.5 38.6 44.3
994 1048 1102 1157 1212
26.5 30.8 35.6 40.9 46.8
1016 1067 1120 1175 1229
28.4 32.8 37.7 43.2 49.2
1037 1087 1139 1192 1246
38000 40000 44000
4081 4296 4725
1233 1291 1406
47.8 54.4 69.7
1251 1308 1422
50.5 57.3 73.0
1268 1324 1437
53.2 60.2 76.1
1285 1340 1452
55.8 63.0 79.3
1300 1355 1467
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
13.4 14.4 15.3 16.4 17.5
859 870 882 896 910
15.0 15.9 16.9 18.0 19.2
903 914 927 941
17.5 18.6 19.7 20.9
946 958 971
20.3 21.5 22.7
977 988 1000
22.0 23.2 24.5
897 914 933 972 1014
18.7 20.1 21.5 24.7 28.4
926 943 961 998 1039
20.5 21.8 23.3 26.6 30.3
956 971 989 1025 1063
22.2 23.6 25.1 28.4 32.3
985 999 1016 1050 1088
24.1 25.5 27.0 30.4 34.3
1013 1027 1043 1076 1111
25.9 27.4 29.0 32.4 36.3
30.4 34.9 39.9 45.4 51.6
1059 1107 1157 1209 1262
32.5 37.0 42.1 47.7 54.0
1082 1128 1176 1226 1278
34.5 39.2 44.3 50.0 56.4
1105 1149 1195 1244 1294
36.6 41.4 46.6 52.4 58.8
1127 1170 1214 1262 1311
38.7 43.6 49.0 54.8 61.3
1150 1191 1234 1280 1328
40.8 45.8 51.3 57.3 63.9
58.3 65.7 82.3
1316 1370 1481
60.9 68.4 85.4
1331 1385 1495
63.4 71.0 88.3
1346 1399 1508
65.9 73.6 91.2
1362 1414 1521
68.5 76.3 94.1
1377 1428 1534
71.1 79.0 97.0
11"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
18000 19000 20000 21000 22000
1933 2041 2148 2255 2363
1018 1029 1041 1055 1069
25.1 26.4 27.8 29.3 30.9
1085 1095 1107 1120
30.2 31.7 33.3 35.0
1149 1159 1171
35.8 37.5 39.2
1209 1219
41.8 43.6
1268
48.1
24000 26000 28000 30000 32000
2577 2792 3007 3222 3437
1101 1135 1172 1212 1254
34.5 38.4 42.9 48.0 53.6
1149 1181 1217 1254 1293
38.7 42.8 47.4 52.6 58.4
1197 1227 1259 1295 1332
43.1 47.3 52.0 57.3 63.2
1244 1271 1302 1335 1371
47.6 52.0 56.8 62.3 68.2
1289 1315 1343 1375 1409
1372 1414 1457 1503 1600
69.8 76.9 84.7 93.1 111.8
1409 1449 1490 1534 1627
74.9 82.2 90.2 98.8 118.0
1445 1483 1523 1565 1655
20
5-1/2"SP
BHP
CFM
34000 3651 1298 59.8 1335 64.7 36000 3866 1344 66.4 1379 71.7 38000 4081 1393 73.7 1425 79.2 40000 4296 1443 81.7 1473 87.3 44000 4725 1547 99.9 1573 105.7 The BHP shown does not include belt drive losses.
5"SP RPM
12"SP
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
52.3 56.8 61.8 67.3 73.4
1334 1357 1384 1414 1446
57.0 61.8 66.9 72.6 78.8
1440 1463 1490 1519
71.9 77.4 83.4 89.9
1540 1564 1590
88.3 94.7 101.4
1635 1659
106.2 113.5
1671
112.3
80.2 87.6 95.8 104.6 124.3
1481 1518 1556 1596
85.6 93.2 101.5 110.5
1551 1585 1621 1659
97.0 104.7 113.2 122.4
1619 1650
108.8 116.8
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 44.50 in. Outlet Area = 11.37 sq. ft. inside Maximum BHP = 45.1 x (RPM/1000)3 Tip Speed, fpm = 11.7 x RPM Class I Class II Class III Volume O.Vel
Size
4450
RPM 922 RPM 1201 RPM 1511 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
8000 9000 10000 11000 12000
704 792 879 967 1055
226 244 263 282 302
0.5 0.6 0.8 1.0 1.2
249 264 281 298 317
0.7 0.8 1.0 1.2 1.4
270 284 299 315 332
0.8 1.0 1.2 1.4 1.6
290 302 316 331 347
1.0 1.1 1.3 1.6 1.9
309 320 333 347 362
1.2 1.3 1.5 1.8 2.1
327 338 349 362 376
1.3 1.5 1.7 2.0 2.3
345 354 365 377 391
1.5 1.7 2.0 2.2 2.5
386 395 406 418
2.2 2.4 2.7 3.0
424 434 444
2.9 3.2 3.5
460 470
3.7 4.1
13000 14000 15000 16000 17000
1143 1231 1319 1407 1495
322 343 364 385 406
1.4 1.7 2.0 2.3 2.7
336 356 376 396 417
1.6 1.9 2.2 2.6 3.0
350 369 388 407 427
1.9 2.2 2.5 2.9 3.3
364 382 400 419 438
2.2 2.5 2.8 3.2 3.6
378 395 412 430 449
2.4 2.7 3.1 3.5 4.0
391 407 424 441 459
2.6 3.0 3.4 3.8 4.3
405 420 436 453 470
2.8 3.2 3.7 4.1 4.6
431 445 460 475 491
3.3 3.7 4.2 4.7 5.3
456 469 483 497 512
3.9 4.3 4.8 5.3 5.8
480 492 505 518 533
4.4 4.9 5.3 5.9 6.5
18000 19000 20000 22000 24000
1583 1671 1759 1935 2111
427 449 471 514 558
3.1 3.6 4.1 5.3 6.7
437 458 480 522 566
3.4 3.9 4.4 5.7 7.1
448 468 489 531 573
3.8 4.3 4.8 6.1 7.6
458 478 498 539 581
4.1 4.6 5.2 6.5 8.0
468 487 507 547 588
4.4 5.0 5.5 6.9 8.4
478 497 516 555 596
4.8 5.3 5.9 7.3 8.8
488 506 525 564 603
5.1 5.7 6.3 7.7 9.3
508 525 543 580 618
5.9 6.5 7.1 8.5 10.2
528 544 561 596 633
6.5 7.2 7.9 9.4 11.1
547 563 579 613 648
7.1 7.8 8.6 10.3 12.1
26000 28000 30000 32000 34000
2287 2463 2638 2814 2990
602 646 691 735 780
8.4 10.4 12.6 15.1 18.0
609 653 697 741 785
8.8 10.8 13.1 15.7 18.6
616 659 703 747 790
9.3 11.3 13.6 16.2 19.1
623 666 709 752 796
9.7 11.8 14.1 16.7 19.7
630 672 715 758 801
10.2 12.3 14.6 17.3 20.3
637 679 721 763 806
10.7 12.8 15.1 17.8 20.9
644 685 727 769 811
11.1 13.3 15.7 18.4 21.4
658 698 739 780 822
12.1 14.3 16.8 19.5 22.6
672 711 751 791 833
13.1 15.3 17.9 20.7 23.9
686 724 763 803 843
14.1 16.4 19.0 21.9 25.1
36000 38000 40000 44000 48000
3166 3342 3518 3870 4222
824 869 914 1003 1093
21.2 24.8 28.8 38.1 49.2
830 874 918 1008 1097
21.8 25.5 29.5 38.8 49.9
835 879 923 1012 1101
22.4 26.1 30.2 39.5 50.7
840 883 928 1016 1105
23.0 26.7 30.8 40.3 51.5
844 888 932 1020 1109
23.6 27.3 31.5 41.0 52.3
849 893 936 1024 1112
24.2 28.0 32.1 41.7 53.1
854 898 941 1028 1116
24.8 28.6 32.8 42.4 53.9
864 907 950 1036 1123
26.1 29.9 34.2 43.9 55.5
874 916 959 1044 1131
27.4 31.3 35.6 45.4 57.1
884 926 968 1052 1138
28.7 32.6 37.0 46.9 58.7
52000 56000
4573 4925
1183 1273
62.2 77.4
1187 1276
63.0 78.3
1190 1280
63.9 79.2
1194 1283
64.7 80.1
1197 1286
65.6 81.1
1201 1290
66.5 82.0
1204 1293
67.3 82.9
1211 1299
69.0 84.7
1218 1305
70.7 86.5
1225 1312
72.5 88.4
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 13000 14000 15000 16000
1055 1143 1231 1319 1407
493 504 515 526 539
4.6 5.0 5.5 6.0 6.5
548 557 568 579
6.2 6.7 7.3 7.9
597 607 617
8.0 8.6 9.3
644 653
10.1 10.7
688
12.3
17000 18000 19000 20000 22000
1495 1583 1671 1759 1935
552 567 581 597 629
7.1 7.8 8.5 9.3 11.1
591 604 617 631 661
8.5 9.2 9.9 10.7 12.6
628 640 652 665 693
9.9 10.7 11.5 12.3 14.2
664 674 686 698 724
11.5 12.2 13.1 13.9 15.9
697 707 718 729 753
24000 26000 28000 30000 32000
2111 2287 2463 2638 2814
663 699 737 775 814
13.0 15.1 17.5 20.1 23.1
693 727 762 799 836
14.8 17.2 19.7 22.4 25.5
723 754 788 823 859
16.5 19.1 21.9 24.8 28.0
752 781 813 847 881
18.2 20.8 23.9 27.2 30.6
34000 36000 38000 40000 44000
2990 3166 3342 3518 3870
854 894 935 976 1060
26.4 30.0 34.0 38.4 48.4
875 914 954 994 1076
28.9 32.7 36.8 41.3 51.6
896 934 973 1012 1093
31.5 35.4 39.6 44.2 54.8
917 954 992 1030 1109
48000 52000 56000
4222 4573 4925
1145 1231 1318
60.3 74.2 90.3
1160 1245 1330
63.7 77.8 94.0
1175 1258 1343
67.1 81.4 97.9
1189 1272 1355
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
5"SP
6"SP
6-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
13.0 13.9 14.7 15.6 17.7
730 739 749 760 782
14.6 15.5 16.4 17.4 19.5
770 779 789 811
17.2 18.2 19.2 21.4
808 818 838
20.0 21.1 23.4
845 865
22.9 25.4
873 891
24.9 27.4
780 808 838 870 904
20.0 22.7 25.8 29.3 33.1
807 834 863 894 926
21.9 24.6 27.7 31.3 35.3
834 860 888 917 948
23.9 26.7 29.8 33.4 37.5
861 885 912 940 969
25.9 28.8 32.0 35.6 39.6
886 910 935 962 991
28.0 30.9 34.2 37.8 41.9
912 934 958 984 1012
30.1 33.1 36.4 40.2 44.3
34.2 38.2 42.5 47.3 58.0
938 974 1010 1048 1125
36.9 41.0 45.5 50.4 61.3
959 994 1029 1066 1141
39.6 43.9 48.5 53.4 64.6
980 1013 1048 1083 1157
42.0 46.7 51.5 56.6 68.0
1000 1033 1067 1101 1173
44.3 49.2 54.4 59.8 71.4
1021 1052 1085 1119 1189
46.5 51.7 57.2 62.9 74.9
1041 1072 1104 1136 1206
48.9 54.1 59.8 65.8 78.4
70.5 85.1 101.8
1204 1285 1368
74.1 88.8 105.7
1219 1299 1380
77.6 92.6 109.7
1234 1312 1392
81.3 96.4 113.8
1248 1326 1405
84.9 100.3 117.9
1263 1339 1417
88.6 104.2 122.0
1278 1353 1430
92.3 108.2 126.2
10"SP
11"SP
12"SP
14"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
22000 24000 26000 28000 30000
1935 2111 2287 2463 2638
917 936 958 981 1006
29.4 32.3 35.4 38.8 42.5
983 1004 1026 1049
36.7 40.0 43.5 47.4
1030 1048 1069 1091
41.2 44.7 48.5 52.6
1091 1110 1131
49.5 53.5 57.8
1133 1150 1170
54.5 58.7 63.2
1189 1208
63.9 68.6
1281
79.8
32000 34000 36000 38000 40000
2814 2990 3166 3342 3518
1033 1062 1091 1122 1154
46.7 51.4 56.5 62.4 68.6
1074 1101 1129 1158 1189
51.8 56.5 61.7 67.5 74.0
1114 1139 1166 1194 1223
57.0 61.8 67.2 73.0 79.4
1153 1177 1202 1229 1257
62.4 67.3 72.8 78.8 85.2
1192 1214 1238 1264 1290
68.0 73.0 78.6 84.7 91.3
1229 1250 1273 1297 1323
73.6 78.9 84.6 90.8 97.5
1299 1320 1341 1363 1387
44000 48000 52000 56000
3870 4222 4573 4925
1221 1292 1366 1442
81.8 96.1 112.1 130.3
1253 1322 1393 1467
88.2 103.6 120.3 138.9
1285 1351 1420 1492
94.2 110.9 128.4 147.5
1316 1380 1447
100.1 117.7 136.3
1347 1409 1473
106.1 124.0 143.8
1378 1437 1500
112.5 130.3 151.0
1438 1494
The BHP shown does not include belt drive losses.
5-1/2"SP
RPM
16"SP
18"SP
RPM
BHP
RPM
BHP
85.1 90.9 97.1 103.4 110.3
1368 1386 1406 1427 1449
97.1 103.2 109.7 116.6 123.7
1450 1468 1487 1508
115.9 122.7 130.0 137.6
125.9 143.7
1496
139.7
19"SP RPM
BHP
1498
129.3
The performance shown is for fan with outlet duct.
21
Performance Data
Wheel Diameter = 4900 in. Outlet Area = 13.78 sq. ft. inside Maximum BHP = 73.1 x (RPM/1000)3 Tip Speed, fpm = 12.8 x RPM
Size
4900
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 837 RPM 1090 RPM 1371 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
725 798 870 943 1016
209 223 237 251 266
0.7 0.8 0.9 1.1 1.3
229 241 253 266 280
0.8 1.0 1.2 1.4 1.6
248 259 270 282 294
1.0 1.2 1.4 1.6 1.8
266 275 286 297 308
1.2 1.4 1.6 1.8 2.1
283 292 301 311 322
1.5 1.6 1.8 2.1 2.3
299 307 316 326 336
1.7 1.9 2.1 2.3 2.6
315 322 331 339 349
1.9 2.1 2.3 2.6 2.9
351 358 366 375
2.6 2.9 3.2 3.5
384 391 399
3.5 3.8 4.1
415 422
4.4 4.7
15000 16000 18000 20000 22000
1088 1161 1306 1451 1596
281 296 327 359 391
1.5 1.8 2.3 3.0 3.8
294 309 338 369 400
1.8 2.1 2.6 3.4 4.2
308 321 349 379 409
2.1 2.4 3.0 3.7 4.6
321 334 361 389 418
2.4 2.7 3.3 4.1 5.0
334 346 372 399 427
2.6 3.0 3.7 4.5 5.5
347 358 383 409 436
2.9 3.3 4.1 4.9 5.9
359 370 394 419 445
3.2 3.5 4.4 5.3 6.3
384 394 415 438 463
3.8 4.1 5.0 6.0 7.2
407 416 436 458 481
4.4 4.8 5.7 6.7 8.0
430 438 457 477 499
5.1 5.5 6.4 7.5 8.7
24000 26000 28000 30000 32000
1741 1886 2031 2176 2321
423 456 489 522 555
4.8 6.0 7.3 8.9 10.6
432 464 496 528 561
5.3 6.4 7.8 9.4 11.2
440 471 503 535 567
5.7 6.9 8.3 9.9 11.7
448 479 510 542 573
6.1 7.4 8.8 10.4 12.3
457 487 517 548 579
6.6 7.9 9.3 11.0 12.8
465 494 524 555 586
7.0 8.3 9.8 11.5 13.4
473 502 531 561 592
7.5 8.8 10.3 12.1 14.0
490 517 546 575 604
8.5 9.8 11.4 13.2 15.2
506 533 560 588 617
9.4 10.9 12.5 14.3 16.4
523 548 574 601 629
10.3 11.9 13.6 15.5 17.6
34000 36000 38000 40000 44000
2466 2611 2756 2901 3192
588 621 654 688 755
12.6 14.8 17.3 20.0 26.4
594 627 660 693 759
13.2 15.4 17.9 20.7 27.1
600 632 665 698 764
13.8 16.0 18.6 21.4 27.8
605 638 670 703 768
14.3 16.6 19.2 22.0 28.5
611 643 675 708 773
14.9 17.3 19.8 22.7 29.3
617 649 680 712 777
15.5 17.9 20.5 23.4 30.0
623 654 686 717 782
16.1 18.5 21.2 24.1 30.8
635 665 696 727 791
17.4 19.8 22.5 25.5 32.3
646 676 706 737 799
18.6 21.2 23.9 26.9 33.8
658 687 717 747 808
19.9 22.5 25.3 28.4 35.4
48000 52000 56000 60000 64000
3482 3772 4062 4352 4642
822 889 956 1023 1091
33.9 42.8 53.2 65.2 78.8
826 893 959 1027 1094
34.7 43.7 54.1 66.2 79.9
830 897 963 1030 1097
35.5 44.6 55.1 67.1 80.9
834 900 967 1033 1100
36.3 45.4 56.0 68.1 81.9
838 904 970 1037 1103
37.1 46.3 56.9 69.1 83.0
842 908 974 1040 1106
37.9 47.1 57.8 70.1 84.1
846 912 977 1043 1109
38.7 48.0 58.7 71.1 85.1
854 919 984 1050 1116
40.3 49.7 60.6 73.0 87.2
863 927 991 1056 1121
42.0 51.5 62.5 75.1 89.3
871 934 998 1063 1128
43.7 53.3 64.4 77.1 91.5
68000
4933
1158
94.3
1161
95.4
1164
96.5
1167
97.6
1170
98.7
1173
99.8
1176
101.0
1182
103.2
1187
105.4
1193
107.6
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
14000 15000 16000 18000 20000
1016 1088 1161 1306 1451
444 451 459 476 496
5.4 5.8 6.2 7.1 8.2
492 499 514 531
7.2 7.7 8.7 9.9
550 566
10.4 11.7
584 598
12.1 13.5
629
15.3
22000 24000 26000 28000 30000
1596 1741 1886 2031 2176
517 539 563 588 614
9.5 11.1 12.9 14.7 16.7
550 571 593 616 641
11.3 12.8 14.6 16.7 19.0
583 602 622 644 667
13.1 14.7 16.5 18.7 21.1
614 631 650 671 692
15.0 16.7 18.6 20.7 23.2
644 660 678 697 718
32000 34000 36000 38000 40000
2321 2466 2611 2756 2901
642 670 698 727 757
18.9 21.3 23.9 26.8 29.9
666 693 720 748 777
21.4 23.9 26.7 29.7 32.9
691 716 742 769 797
23.8 26.6 29.6 32.7 36.0
715 739 764 790 816
26.0 29.1 32.3 35.7 39.2
44000 48000 52000 56000 60000
3192 3482 3772 4062 4352
817 879 942 1005 1069
37.0 45.4 55.1 66.3 79.1
835 895 957 1019 1082
40.3 48.9 58.9 70.2 83.3
853 912 972 1033 1095
43.6 52.5 62.6 74.3 87.5
871 928 987 1047 1108
64000 68000
4642 4933
1133 1198
93.6 109.9
1145 1210
97.9 114.4
1158 1221
102.4 119.1
1170 1232
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
17.0 18.7 20.7 22.9 25.4
672 688 705 723 742
19.0 20.9 22.9 25.2 27.8
700 715 731 748 766
21.0 23.0 25.2 27.5 30.2
741 756 772 790
25.3 27.6 30.0 32.7
766 781 796 813
27.5 29.9 32.5 35.2
804 819 835
32.3 35.0 37.8
739 762 786 810 836
28.2 31.4 34.8 38.5 42.3
763 784 807 831 855
30.6 33.7 37.3 41.2 45.3
786 807 828 851 875
33.1 36.2 39.8 43.7 48.1
808 828 849 871 894
35.6 38.8 42.4 46.4 50.8
830 850 870 891 913
38.2 41.5 45.2 49.1 53.5
852 871 890 911 932
40.9 44.3 48.0 52.0 56.4
47.0 56.1 66.5 78.4 91.8
889 945 1002 1061 1121
50.5 59.8 70.4 82.5 96.2
907 961 1017 1075 1134
54.0 63.5 74.4 86.8 100.6
925 977 1032 1089 1147
57.4 67.3 78.4 90.9 105.1
942 994 1047 1103 1160
60.6 71.1 82.5 95.3 109.6
960 1010 1062 1116 1173
63.6 74.8 86.6 99.6 114.2
978 1026 1077 1130 1185
66.6 78.2 90.7 104.0 118.7
106.9 123.8
1182 1243
111.5 128.7
1194 1255
116.2 133.5
1206 1266
120.9 138.4
1218 1278
125.6 143.5
1230 1289
130.4 148.4
1242 1300
135.2 153.5
10"SP
11"SP
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
26000 28000 30000 32000 34000
1886 2031 2176 2321 2466
827 842 857 874 891
34.7 37.6 40.5 43.7 47.1
886 900 915 932
42.7 46.0 49.3 52.9
941 955 971
51.5 55.1 58.9
994 1009
61.0 65.0
1032 1045
67.1 71.2
1080
77.6
36000 38000 40000 44000 48000
2611 2756 2901 3192 3482
910 930 951 995 1042
50.8 54.9 59.4 69.5 81.6
949 968 988 1029 1074
56.8 61.0 65.6 75.8 88.0
987 1005 1023 1063 1105
62.9 67.2 71.9 82.4 94.6
1024 1041 1058 1095 1136
69.3 73.7 78.5 89.3 101.6
1060 1076 1092 1128 1167
75.7 80.4 85.4 96.3 109.0
1094 1109 1125 1159 1197
52000 56000 60000 64000 68000
3772 4062 4352 4642 4933
1092 1144 1198 1254 1311
94.7 108.4 123.4 140.2 158.5
1122 1172 1224 1278 1334
102.1 117.1 132.8 150.0 168.9
1151 1199 1250 1302 1357
109.0 125.1 142.1 160.0 179.4
1180 1226 1275 1326
116.0 132.6 150.8 169.8
1209 1253 1301 1350
123.4 140.1 159.1 179.4
1237 1280 1326
22
5-1/2"SP
BHP
CFM
The BHP shown does not include belt drive losses.
5"SP
RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
82.2 87.2 92.4 103.6 116.4
1162 1175 1189 1221 1255
95.8 101.1 106.7 118.7 132.0
1250 1279 1311
121.3 134.2 148.2
1335 1366
150.0 164.9
1363
158.2
131.1 147.7 167.1
1292 1333
147.1 164.1
1346
163.7
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 54.25 in. Outlet Area = 16.91 sq. ft. inside Maximum BHP = 122. x (RPM/1000)3 Tip Speed, fpm = 14.2 x RPM Class I Class II Class III Volume O.Vel
Size
5425
RPM 756 RPM 986 RPM 1240 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 14000 16000 18000 20000
710 828 947 1065 1184
187 207 228 249 272
0.8 1.0 1.4 1.8 2.2
205 222 241 262 283
1.0 1.3 1.7 2.1 2.6
222 238 255 274 294
1.2 1.6 2.0 2.5 3.0
238 253 269 286 305
1.5 1.8 2.3 2.8 3.4
254 267 282 298 316
1.7 2.1 2.6 3.1 3.8
269 281 295 310 327
2.0 2.4 2.9 3.4 4.1
283 294 307 322 338
2.3 2.7 3.2 3.8 4.5
320 331 344 359
3.4 3.9 4.5 5.2
354 365 379
4.6 5.3 6.0
375 386 398
5.4 6.1 6.9
22000 24000 26000 28000 30000
1302 1420 1539 1657 1775
295 318 342 365 389
2.8 3.5 4.3 5.2 6.3
305 327 350 373 397
3.2 3.9 4.8 5.7 6.8
315 337 359 381 404
3.6 4.4 5.2 6.2 7.3
325 346 367 389 411
4.1 4.8 5.7 6.7 7.9
335 355 376 397 419
4.5 5.3 6.2 7.3 8.4
345 364 384 405 426
4.9 5.8 6.7 7.8 9.0
355 373 393 413 434
5.3 6.3 7.3 8.3 9.6
374 392 410 429 448
6.1 7.1 8.3 9.5 10.7
394 409 426 444 463
6.9 7.9 9.2 10.5 11.9
412 427 443 460 477
7.8 8.9 10.1 11.5 13.0
32000 34000 36000 38000 40000
1894 2012 2130 2249 2367
413 438 462 486 511
7.4 8.8 10.3 11.9 13.8
420 444 468 492 516
8.0 9.3 10.9 12.6 14.4
427 450 474 498 521
8.5 9.9 11.5 13.2 15.1
434 457 480 503 527
9.1 10.5 12.1 13.9 15.8
441 463 486 509 532
9.7 11.2 12.8 14.5 16.5
448 470 492 515 538
10.3 11.8 13.4 15.2 17.2
455 476 499 521 543
10.9 12.4 14.1 15.9 18.0
469 489 511 532 555
12.2 13.7 15.5 17.4 19.4
482 502 523 544 566
13.4 15.1 16.9 18.8 20.9
496 515 535 556 577
14.7 16.4 18.3 20.3 22.5
44000 48000 52000 56000 60000
2604 2840 3077 3314 3551
559 609 658 707 756
18.0 23.1 29.1 36.0 44.0
564 613 662 711 760
18.8 23.9 30.0 37.0 45.0
569 618 666 715 764
19.5 24.7 30.8 37.9 46.0
574 622 670 719 768
20.2 25.5 31.7 38.8 47.0
579 627 675 723 771
21.0 26.3 32.5 39.7 48.0
584 631 679 727 775
21.8 27.1 33.4 40.7 49.0
589 636 683 731 778
22.5 28.0 34.3 41.6 50.0
599 645 691 738 786
24.1 29.7 36.1 43.5 52.0
609 654 700 746 793
25.8 31.4 38.0 45.5 54.1
619 663 708 754 800
27.4 33.2 39.9 47.5 56.2
64000 68000 72000 76000 80000
3787 4024 4261 4497 4734
806 855 905 955 1004
53.2 63.5 75.1 88.0 102.4
809 859 908 958 1007
54.2 64.6 76.2 89.2 103.7
813 862 911 960 1010
55.3 65.7 77.4 90.5 104.9
816 865 914 963 1013
56.3 66.8 78.6 91.7 106.3
820 869 918 966 1015
57.4 67.9 79.8 93.0 107.6
823 872 921 969 1018
58.4 69.0 81.0 94.2 108.9
827 875 923 972 1021
59.5 70.2 82.1 95.5 110.2
833 881 929 978 1026
61.6 72.4 84.5 97.9 112.8
840 888 935 983 1032
63.8 74.7 86.9 100.5 115.4
847 894 941 989 1037
66.0 77.0 89.3 103.0 118.1
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
18000 20000 22000 24000 26000
1065 1184 1302 1420 1539
406 417 430 444 459
6.9 7.8 8.7 9.8 11.0
453 464 476 490
9.6 10.7 11.8 13.1
496 508 520
12.7 13.9 15.3
527 537 549
14.8 16.1 17.6
565 576
18.4 20.0
602
22.4
628
24.9
28000 30000 32000 34000 36000
1657 1775 1894 2012 2130
475 492 510 528 547
12.4 14.1 15.9 17.8 19.7
505 520 537 554 572
14.6 16.2 18.1 20.2 22.4
533 548 563 579 596
16.8 18.5 20.4 22.5 24.9
561 574 588 603 619
19.2 21.0 22.9 25.1 27.4
588 600 613 627 642
21.7 23.5 25.5 27.7 30.2
613 625 637 650 665
24.2 26.2 28.2 30.5 33.0
638 649 661 673 686
38000 40000 44000 48000 52000
2249 2367 2604 2840 3077
567 588 629 672 717
21.8 24.0 29.1 35.0 41.8
590 609 649 691 734
24.8 27.2 32.5 38.6 45.7
613 631 669 709 750
27.5 30.2 36.1 42.4 49.6
636 653 689 727 767
30.1 33.0 39.4 46.2 53.7
658 674 708 745 784
32.8 35.7 42.5 50.0 57.8
680 695 728 763 800
35.7 38.6 45.4 53.4 61.9
56000 60000 64000 68000 72000
3314 3551 3787 4024 4261
762 807 854 900 947
49.5 58.3 68.3 79.4 91.8
777 822 867 913 959
53.7 62.7 72.9 84.2 96.8
793 836 881 926 971
57.9 67.1 77.5 89.1 101.9
808 851 894 938 983
62.1 71.6 82.2 94.1 107.1
824 865 908 951 995
66.5 76.2 87.1 99.1 112.4
839 880 921 964 1007
76000 80000 85000
4497 4734 5030
995 1042 1102
105.6 120.8 141.9
1006 1053 1112
110.8 126.2 147.6
1017 1064 1122
116.1 131.8 153.4
1029 1074 1132
121.6 137.4 159.3
1040 1085 1142
127.0 143.1 165.3
1051 1096 1152
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
32000 34000 36000 38000 40000
1894 2012 2130 2249 2367
748 759 770 782 794
42.8 45.6 48.5 51.6 54.8
798 809 820 832
51.9 55.0 58.4 61.8
846 856 867
61.8 65.3 69.0
892 902
72.4 76.3
935
83.7
44000 48000 52000 56000 60000
2604 2840 3077 3314 3551
821 851 882 916 952
62.1 70.5 80.0 91.3 103.7
857 884 914 946 980
69.3 77.9 87.7 98.9 111.8
891 917 946 976 1008
76.9 85.7 95.8 107.0 119.9
924 949 976 1005 1036
84.6 93.7 104.1 115.6 128.5
956 980 1006 1033 1063
64000 68000 72000 76000 80000
3787 4024 4261 4497 4734
989 1027 1067 1107 1149
116.9 130.7 145.3 161.2 178.6
1015 1052 1091 1130 1170
126.1 141.1 156.7 173.1 190.9
1042 1077 1114 1152 1192
134.7 150.8 167.7 185.0 203.3
1068 1102 1138 1175 1213
143.2 159.8 177.8 196.7 215.9
1094 1127 1161 1197 1234
85000
5030
1202
202.5
1222
215.3
The BHP shown does not include belt drive losses.
5-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
26.8 28.9 31.1 33.4 35.9
662 672 684 695 708
29.4 31.6 33.9 36.3 38.9
695 706 717 729
34.4 36.8 39.4 42.1
717 727 738 750
37.3 39.8 42.4 45.3
701 716 747 781 817
38.7 41.7 48.5 56.7 65.7
722 736 766 799 834
41.8 44.9 51.7 59.9 69.4
742 756 785 816 850
45.0 48.1 55.1 63.2 72.9
762 775 803 834 866
48.2 51.4 58.6 66.8 76.4
70.9 80.9 91.9 104.2 117.7
855 894 935 976 1019
75.3 85.6 96.9 109.3 123.2
870 909 948 989 1031
79.7 90.4 101.9 114.6 128.5
886 923 962 1002 1043
83.6 95.0 106.9 119.9 134.1
901 937 975 1014 1055
87.5 99.5 112.0 125.2 139.6
132.7 148.9 171.4
1062 1106 1162
138.2 154.8 177.4
1074 1117 1172
144.0 160.6 183.7
1085 1128 1182
149.6 166.6 189.9
1096 1138 1192
155.5 172.5 196.1
12"SP
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
92.5 102.1 112.6 124.3 137.6
988 1010 1035 1061 1090
100.5 110.5 121.4 133.3 146.9
1049 1068 1091 1115 1141
117.1 127.8 139.5 152.2 165.9
1124 1145 1167 1192
145.6 158.2 171.5 186.1
1196 1218
177.1 191.4
1222
186.9
152.2 168.8 187.4 207.3 228.1
1119 1151 1184 1219
161.6 178.2 196.9 217.5
1169 1199 1230
181.3 198.3 216.8
1218
201.7
The performance shown is for fan with outlet duct.
23
Dimensions
Size 1225 through 5425 Size 1225 through 4450
Arrangement 1 & 9 ARRANGEMENT 1
L
G
ARRANGEMENT 9
Q
K
Q
U
U H
O.D.
F
Q D
D
W
B
M
C
C
E
E
P
FRONT ELEVATION
X
H
Q
P
A Q
Q
M
Class I SISW Class II SISW
DRIVE SIDE ELEVATION
B
M
DRIVE SIDE ELEVATION
CCW90 TH SHOWN CW TH OPPOSITE
W P
M P
FRONT ELEVATION
CW90 TH SHOWN CCW TH OPPOSITE
ROTATION AND DISCHARGE POSITIONS (DRIVE SIDE)
CW90
TH
CW360
UB
CW270
BH
CW180
DB
CCW90
TH
CCW360
UB
CCW270
BH
CCW180
DB
DIMENSIONS - INCH FAN SIZE
A
B
C
D
E
F
G
H
K
L
M
P
Q
1225 1350 1500 1650 1825 2000 2225 2450 2700 3000 3300
11-3/4 12-15/16 14-3/8 15-13/16 17-1/2 19-3/16 21-3/8 23-1/2 25-7/8 28-3/4 31-5/8
10-3/8 11-1/4 12-3/8 13-3/8 14-5/8 15-7/8 18-1/4 19-3/4 21-1/2 24-1/8 25-5/8
11-3/8 12-1/2 13-7/8 15-3/8 16-7/8 18-1/2 20-1/2 22-1/2 24-3/4 27-1/2 30-1/8
10 10-7/8 12 13-1/4 14-5/8 16 17-3/4 19-1/2 21-3/8 23-3/4 26-1/8
21-3/4 23-3/4 26-1/4 28-3/4 31-1/2 34-3/8 38-3/4 42-1/4 46-1/4 51-5/8 55-3/4
15-7/8 17-1/8 18-5/8 20-1/8 21-7/8 24-1/8 26-3/8 28-5/8 31-1/8 34-5/8 37-5/8
6-3/8 6-15/16 7-9/16 8-1/8 8-13/16 10 10-15/16 11-13/16 12-13/16 14-1/2 15-11/16
22-7/8 25 27-5/8 30-5/8 33-5/8 36-7/8 40-5/8 44-1/2 48-7/8 54-5/8 59-7/8
2-1/2 3 3 4 4 4 4-1/2 4-1/2 4-1/2 5 5
17-1/4 21-3/4 22-1/2 25 25-3/4 28-3/4 30-1/4 33 34-1/2 38-1/2 39-3/4
1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 2 2
5-19/32 6-3/32 6-11/16 7-13/32 8-3/32 8-25/32 9-11/16 10-9/16 11-9/16 13 14-3/16
6-7/8 7 8 9 10 11 12-1/4 13-1/2 14-3/4 16 17-1/2
3650 4025 4450 4900 5425
35 38-5/8 42-11/16 47 52
28-1/8 30-3/4 33-3/4 37 40-3/4
33-1/2 36-7/8 40-3/4 44-3/4 49-3/8
29 32-1/8 35-1/4 38-1/4 42-7/8
61-5/8 67-5/8 74-1/2 81-3/4 90-1/8
41-1/8 40-7/8 45-1/8 49-5/8 55
17-1/16 26-1/8 27-7/8 29-11/16 31-3/4
66 72-3/4 80-1/2 87-3/4 97-1/2
6 6 6 5 5-1/2
44-3/4 46-1/2 52-1/2 52 54-3/4
2 2 2-1/2 2-1/2 2-1/2
15-9/16 17-1/32 18-31/32 20-3/4 22-27/32
19 21 24 27 30
12-13/16 14-1/8 15-11/16 17-1/4
SHAFT DIA. CLASS I CLASS II 15/16 1-3/16 1-3/16 1-7/16 1-3/16 1-7/16 1-3/16 1-7/16
1/4 1/4 1/4 1/4
14-7/16 15-13/16 17-5/8 19-3/8 21-3/8 23-3/4 26-1/8 28-7/8
19-1/16 20-15/16 23-1/4 25-5/8 28-1/4 31-3/8 34-1/2 38-3/16
1-3/16 1-7/16 1-7/16 1-7/16 1-11/16 1-11/16 1-15/16 1-15/16
1-7/16 1-11/16 1-11/16 1-11/16 2-3/16 2-3/16 2-3/16 2-7/16
1/4 x 1/8 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 1/2 x 1/4 1/2 x 1/4
3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 1/2 x 1/4 1/2 x 1/4 1/2 x 1/4 5/8 x 5/16
256 256 286 286 286 286 286 286
31-13/16 35-3/16 38-3/4 42-15/16
42-1/8 46-9/16 51-1/4 56-3/4
1-15/16 1-15/16 2-3/16 2-3/16
2-3/16 2-7/16 N/A N/A
1/2 1/2 1/2 1/2
1/2 x 1/4 5/8 x 5/16 N/A N/A
286 286 286 286
FAN SIZE
S
1225 1350 1500 1650
7/16 7/16 7/16 9/16
12-7/8 14-1/8 15-5/8 17-3/8
9-11/16 10-11/16 11-7/8 13-1/16
1825 2000 2225 2450 2700 3000 3300 3650
9/16 9/16 9/16 9/16 9/16 9/16 9/16 9/16
19 20-7/8 22-7/8 25 27-1/2 30-7/8 33-3/4 37
4025 4450 4900 5425
9/16 9/16 9/16 9/16
40-5/8 45-1/4 49-1/2 54-5/8
U
W
X
DO NOT USE FOR CONSTRUCTION UNLESS CERTIFIED. 24
KEYWAY SIZE CLASS I CLASS II x 1/8 1/4 x 1/8 x 1/8 3/8 x 3/16 x 1/8 3/8 x 3/16 x 1/8 3/8 x 3/16
x 1/4 x 1/4 x 1/4 x 1/4
MAX. FRAME ARR. 9 215 215 215 256
Dimensions
Size 4900 Through 5425 Size 2450 Through 5425
Arrangement 1 & 9 FAN SIZE
DISC POS'N
CCW90 TH SHOWN CW90 TH OPPOSITE
DB TH
2450
UB
E G
L
B
BH
C
DB
K
TH
2700 A
UB BH
U
DB
X O.D.
H
F
TH
3000
UB BH
D
DB TH
3300 M
W
J
UB BH
T
DB
ARRANGEMENT 1 SIDE ELEVATION (DRIVE SIDE)
FRONT ELEVATION
TH
3650
UB BH DB
E B
8 HOLES 9/16" DIA.
TH
4025
C
UB BH DB
U Q
S
Q
S
TH
4450
UB BH
H
DB TH
4900
D
UB BH
P
P
N
DB
T
R
TH
5425
UB
ARRANGEMENT 9 SIDE ELEVATION (DRIVE SIDE)
FOUNDATION (PLAN)
BH
Class II SISW Class III SISW
MEAN CENTER DISTANCE
182-4 ± 3/4" 17.3 17.2 18.3 19.2 -
213-5 ± 1" 18.9 19.8 18.8 18.7 19.9 20.9 20.3 20.2 21.5 22.8 -
254-6 284-6 324-6 364-5 404-5 ± 1" ± 1-1/4" ± 1-1/2" ± 1-3/4" ± 2" 20.7 21.7 22.2 21.1 20.9 22.3 22.8 23.5 24.0 25.0 21.9 22.4 22.1 22.5 23.6 24.0 24.9 24.9 25.4 26.3 26.9 23.1 23.5 24.4 23.4 23.8 24.7 25.1 25.5 26.4 27.0 28.0 26.5 26.9 27.7 28.3 29.2 23.9 24.8 25.4 24.4 25.2 25.8 26.6 27.4 28.0 28.8 27.7 28.5 29.1 30.0 27.2 28.1 28.6 29.5 27.8 28.6 29.2 30.1 29.8 30.6 31.2 32.1 31.6 32.3 32.9 33.7 28.7 29.4 30.0 30.8 29.2 29.9 30.4 31.3 31.6 32.4 32.9 33.7 33.5 34.2 34.7 35.5 30.8 31.5 32.0 32.8 31.6 32.3 32.8 33.6 34.1 34.8 35.3 36.0 36.2 36.9 37.3 38.0
ROTATION AND DISCHARGE POSITIONS (DRIVE SIDE)
CW90
TH
CW360
UB
CW270
BH
CW180
DB
CCW90
TH
CCW360
UB
CCW270
BH
CCW180
DB
DIMENSIONS - INCHES FAN SIZE
A
B
C
D
E
F
G
H
2450 2700 3000 3300 3650 4025 4450
23-1/2 25-7/8 28-3/4 31-5/8 35 38-5/8 42-11/16
19-3/4 21-1/2 24-1/8 25-5/8 28-1/8 30-3/4 33-3/4
22-1/2 24-3/4 27-1/2 30-1/8 33-1/2 36-7/8 40-3/4
19-1/2 21-3/8 23-3/4 26-1/8 29 32-1/8 35-1/4
42-1/4 46-1/4 51-5/8 55-3/4 61-5/8 67-5/8 74-1/2
28-5/8 31-1/8 34-5/8 37-5/8 41-1/8 40-7/8 45-1/8
11-13/16 12-13/16 14-1/2 15-11/16 17-1/16 26-1/8 27-7/8
44-1/2 48-7/8 54-5/8 59-7/8 66 72-3/4 80-1/2
27-1/2 29-1/2 30-1/2 31-1/2 34 35 35
4900 5425
47 52
37 40-3/4
44-3/4 49-3/8
38-1/4 42-7/8
81-3/4 90-1/8
49-5/8 55
29-11/16 31-3/4
87-3/4 97-1/2
35 35
FAN SIZE 2450 2700
P 10-9/16 11-9/16
K
J
Q
R
S
T
U
W
X
13-1/2 14-3/4
21-5/8 20-5/8
13-1/2 14-3/4
29-1/4 31-3/4
25 27-1/2
19-3/8 21-3/8
25-5/8 28-1/4
L
CLASS II n/a n/a n/a n/a n/a n/a n/a
CLASS III 5 6 6 7 7 7 8
7 7
8 8
n/a n/a
N
CLASS III 43 47-1/2 49-1/2 53 56-1/2 59 61-1/2
1-1/2 1-1/2 2 2 2 2 2-1/2
3-1/2 5 5 5 5 5 5
62 64-1/2
63 65-1/2
2-1/2 2-1/2
5 5
SHAFT DIA. CLASS II
M
CLASS II n/a n/a n/a n/a n/a n/a n/a
KEYWAY
CLASS III 2-7/16 2-7/16
CLASS II n/a n/a
CLASS III 5/8 x 5/16 5/8 x 5/16
3000
13
16
22
16
34-1/4
30-7/8
23-3/4
31-3/8
n/a
2-11/16
n/a
5/8 x 5/16
3300
14-3/16
17-1/2
23
17-1/2
37-1/4
33-3/4
26-1/8
34-1/2
n/a
2-11/16
n/a
5/8 x 5/16
3650 4025
15-9/16 17-1/32
19 21
25 26
19 21
40-1/4 44-1/4
37 40-5/8
28-7/8 31-13/16
38-3/16 42-1/8
n/a n/a
2-15/16 2-15/16
n/a n/a
3/4 x 3/8 3/4 x 3/8
4450
18-31/32
24
25
24
50-1/4
45-1/4
35-3/16
46-9/16
n/a
3-3/16
n/a
3/4 x 3/8
4900
20-3/4
27
25
27
56-1/4
49-1/2
38-3/4
51-1/4
2-11/16
3-3/16
5/8 x 5/16
3/4 x 3/8
5425
22-27/32
30
25
30
62-1/4
54-5/8
42-15/16
56-3/4
2-15/16
3-7/16
3/4 x 3/8
7/8 x 7/16
DO NOT USE FOR CONSTRUCTION UNLESS CERTIFIED. 25
Dimensions
Size 1225 Through 5425 Size 1225 Through 4450
Arrangement 9T and 9S
Class I SISW Class II SISW
Mean Drive Center +/-1.5" "U" or "T" Frames FAN SIZE
MOTOR FRAME
TH-TOP DB-CCW 9L DB-CW 9R UB-CCW 9R UB-CW 9L
BH-TOP DB-CCW 9R DB-CW 9L UB-CCW 9L UB-CW 9R
DB-TOP TH-CCW 9R TH-CW 9L BH-CCW 9L BH-CW 9R
FAN SIZE
MOTOR FRAME
BH-TOP DB-CCW 9R DB-CW 9L UB-CCW 9L UB-CW 9R
DB-TOP TH-CCW 9R TH-CW 9L BH-CCW 9L BH-CW 9R
1225
48 56, 143-5 182-4 213-5
24.9 25.4 26.4 27.1
21.9 22.4 23.4 24.1
23.4 23.9 24.9 25.8
2700
56, 143-5 182-4 213-5 254-6 284-6
40.5 41.5 42.3 43.3 44.5
34.4 35.4 36.1 37.1 38.4
37.8 38.8 39.5 40.5 41.8
1350
48 56, 143-5 182-4 213-5
26.1 26.6 27.6 28.4
22.9 23.4 24.4 25.1
24.5 25.0 26.0 26.8
3000
56, 143-5 182-4 213-5 254-6 284-6
43.9 44.9 45.6 46.6 47.9
36.8 37.8 38.5 39.5 40.8
40.5 41.5 42.3 43.3 44.5
1500
48 56, 143-5 182-4 213-5
27.6 28.1 29.1 29.9
24.0 24.5 25.5 26.3
25.9 26.4 27.4 28.1
3300
143-5 182-4 213-5 254-6 284-6
46.8 47.8 48.5 49.5 50.8
39.1 40.1 40.9 41.9 43.1
43.1 44.1 44.9 45.9 47.1
1650
56, 143-5 182-4 213-5 254-6
30.4 31.4 32.1 33.1
26.3 27.3 28.0 29.0
28.4 29.4 30.1 31.1
3650
143-5 182-4 213-5 254-6 284-6
50.0 51.0 51.8 52.8 54.0
42.0 43.0 43.8 44.8 46.0
46.5 47.5 48.3 49.3 50.5
1825
56, 143-5 182-4 213-5 254-6
32.0 33.0 33.8 34.8
27.6 28.6 29.4 30.4
29.9 30.9 31.6 32.6
4025
143-5 182-4 213-5 254-6 284-6
53.6 54.6 55.4 56.4 57.6
44.9 45.9 46.6 47.6 48.9
49.9 50.9 51.6 52.6 53.9
2000
56, 143-5 182-4 213-5 254-6
33.9 34.9 35.6 36.6
29.0 30.0 30.8 31.8
31.5 32.5 33.3 34.3
4450
143-5 182-4 213-5 254-6 284-6
58.3 59.3 60.0 61.0 62.3
48.3 49.3 50.0 51.0 52.3
53.8 54.8 55.5 56.5 57.8
2225
56, 143-5 182-4 213-5 254-6 284-6
35.9 36.9 37.6 38.6 39.9
30.8 31.8 32.5 33.5 34.8
33.5 34.5 35.3 36.3 37.5
4900
143-5 182-4 213-5 254-6 284-6
62.5 63.5 64.3 65.3 66.5
51.3 52.3 53.0 54.0 55.3
57.8 58.8 59.5 60.5 61.8
2450
56, 143-5 182-4 213-5 254-6 284-6
38.0 39.0 39.8 40.8 42.0
32.5 33.5 34.3 35.3 36.5
35.5 36.5 37.3 38.3 39.5
5425
143-5 182-4 215-5 254-6 284-6
67.6 68.6 69.4 70.4 71.6
55.9 56.9 57.6 58.6 59.9
62.4 63.4 64.1 65.1 66.4
Standard multipunch bases: 1225 to 1500 is 48-215T, 1650 to 5425 is 56-256T Optional multipunch base: 2225 to 5425 is 284-6T
26
TH-TOP DB-CCW 9L DB-CW 9R UB-CCW 9R UB-CW 9L
Sound Data
Northern Blower Inc. certifies that the product shown herein is licensed to bear the AMCA Seal. Fan Sound Ratings are based on tests and procedures in accordance with AMCA Publication 211 and AMCA Publication 311, and comply with the requirements of the AMCA Certified Ratings Program. Fan sound data testing was conducted according to AMCA Standard 300 in an AMCA Registered Laboratory. The Certified Sound Ratings Seal provides increased assurance that the published sound ratings are both reliable and accurate.
Sound data was obtained in accordance with AMCA Standard 300, Reverberant Room Method for Sound Testing of Fans, published in accordance with AMCA Standard 301, Methods for Calculating Fan Sound Ratings from Laboratory Test data. Upon request Northern Blower will provide Sound Level Ratings for any fan selection from this catalogue. Refer also to the Northern Blower Sound Bulletin.
Fan Geometry
Designations for Rotation and Discharge of Centrifugal Fans
Notes: 1) Direction of rotation is determined from the drive side of the fan. 2) On single inlet fans, the drive side is always considered as the side opposite the fan inlet. 3) On double inlet fans with drives on both sides, the drive side is that with the higher powered drive unit.
4) Direction of discharge is determined in accordance with the diagrams. Angle of discharge is referred to the vertical axis of the fan and designated in degrees from such standard reference axis. Angle of discharge may be any intermediate angle as required. 5) For a fan inverted for ceiling suspension, or side wall mounting, the direction of rotation and discharge is determined when the fan is resting on the floor.
Reprinted by permission of the Air Movement & Control Association, Inc., 30 West University Drive, Arlington Heights, IL, 60004-1893, U.S.A.
27
Centrifugal Fan Arrangements
SW - Single Width SI - Single Inlet
DW - Double Width DI - Double Inlet
1 SWSI For belt drive or direct connection. Impeller overhung. Two bearings on base.
1 SWSI c/w BOX For belt drive or direct connection. Impeller overhung. Two bearings on base. Inlet box may be self-supporting.
2 SWSI For belt drive or d irect connection. Impeller overhung. Bearings in bracket supported by fan housing.
3 SWSI c/w BOX For belt drive or direct connection. One bearing on each side and supported by fan housing and inlet box. Shaft extending through inlet box.
3 SWSI c/w IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side supported by independent pedestals.
3 SWSI c/w BOX & IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side and supported by independent pedestals with shaft extending through inlet box.
3 DWDI For belt drive or direct connection. One bearing on each side and supported by fan housing.
3 DWDI c/w BOXES For belt drive or direct connection. One bearing on each side and supported by inlet boxes. Shaft extending through inlet boxes.
3 DWDI c/w IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side and supported by independent pedestals.
3 DWDI c/w BOXES & IND. PED For belt drive or direct connection. Housing is self-supporting. One bearing on each side supported by independent pedestals with shaft extending through inlet box.
4 SWSI For direct drive. Impeller overhung on prime mover shaft. No bearings on fan. Prime mover base mounted or integrally directly connected.
7 SWSI For belt drive or direct connection. Arrangement 3 plus base for prime mover.
7 SWSI c/w BOX For belt drive or direct connection. Arrangement 3 plus base for prime mover. Shaft extending through inlet box.
7 DWDI For belt drive or direct connection. Arrangement 3 plus base for prime mover.
7 DWDI c/w BOXES For belt drive or direct connection. Arrangement 3 plus base for prime mover. Shaft extending through inlet box.
8 SWSI For belt drive or direct connection. Arrangement 1 plus extended base for prime mover.
8 SWSI c/w BOX For belt drive or direct connection. Arrangement 1 plus extended base for prime mover.
9 SWSI For belt drive. Impeller overhung, two bearings, with prime mover outside base.
10 SWSI For belt drive. Impeller overhung, two bearings, with prime mover inside base.
3 SWSI For belt drive or direct connection. One bearing on each side and supported by fan housing.
Reprinted by permission of the Air Movement & Control Association, Inc., 30 West University Drive, Arlington Heights, IL, 60004-1893, U.S.A. 28
Notes
29
CML Northern Blower Inc. 901 Regent Avenue West Winnipeg, Manitoba Canada R2C 2Z8 204.222.4216 204.222.7601 [email protected] www.northernblower.com
Series 7600 Centrifugal BI Fans Design 7620 • Class I, II, & III
CML Northern Blower Inc. is one of the largest industrial fan companies in North America. In all that we do we are committed to the construction of an excellent product and the provision of outstanding customer service. Northern Blower quality is a tradition. From our first day we have devoted our best efforts to the production of high grade fan equipment. Every day we strive to improve. Our sales representatives are located coast-to-coast across the continent. Backed by the factory sales team, Northern Blower representatives are ready to provide product information and application advice whenever you need it.
CML NORTHERN BLOWER
Gordon Christie PRESIDENT/CEO
Description
Index
Series 7600 Centrifugal BI Fans The Design 7620 BI fan is a quiet, highly efficient, and stable operating fan suited for a broad range of industrial and commercial applications.
Industrial supply and exhaust: Fume Exhaust Light Dust Collection Spray Booth Exhaust Pulp and Paper Machines Heat Applications Special Stainless Steel and Aluminum Construction Light Moisture Applications
Design Features
2
General Information
3
Accessories
4
Selection
6
Performance Data
8
Dimensions
24
Sound Data
27
Fan Geometry
27
Centrifugal Fan Arrangements
28
CML Northern Blower Inc. certifies that the Series 7600, Design 7620 BI Fan shown herein is licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA publication 211 and AMCA publication 311 and comply with the requirements of the AMCA Certified Ratings program.
1
Design Features
Housing & Framing Rugged heavy gauge all welded steel housings with substantial framing sections for maximum rigidity.
BI Wheel Heavy gauge, single thickness, backward inclined blades.
Bearings Heavy duty precision ball or roller bearings sized for generous B-10 life.
Shafts Turned ground and polished or fully machined to close dimensional tolerance.
Balancing Wheels are dynamically balanced to ANSI S2.19-1989 specifications for smooth operation.
2
General Information
Shafts and Bearings Shafts Selected to have suitable strength and operated well below the first critical speed for each maximum class condition. Bearings Antifriction, grease lubricated, self aligning ball or roller types, solid or split housing, manufactured to internationally adopted standards by companies having worldwide acceptance and support services. Bearings are selected for continuous belt driven operation with a generous bearing life throughout each full class range.
Classes of Construction Fan Size Range SISW Arr.
4 Position Universal Discharge Class I
Class II
4 Position Fixed Discharge Class II
Class III
1
1225 - 5425 1225 - 4450
4900 - 5425
2450 - 5425
9
1225 - 5425 1225 - 4450
4900 - 5425
2450 - 5425
Capacities 400 CFM to 85,000 CFM
Pressures Class I Class II Class III
to 7" S.P. (Size 1225 - 5425) to 12" S.P. (Size 1225 - 5425) to 19" S.P. (Size 2450 - 5425)
Temperatures Operating Temperatures to 800°F See Table 2, Page 6
Design 7620 Centrifugal BI Wheel The Northern Blower BI wheel is designed for high operating efficiency. The blades are formed from heavy gauge single thickness sheets. Continuously welded steel construction is standard. Available from 12 1/4" to 54 1/4" diameters.
3
Accessories
Variable Inlet Vanes
Outlet Damper
Shaft and Bearing Guard
Variable Inlet Vanes provide accurate volume control with minimal reduction in performance efficiency. Fan performance remains stable through fully open to fully closed positions. Available for both manual and automatic operation to temperatures of 300° F. Special design available for temperatures to 650° F.
Outlet Dampers are the least expensive air volume control device but are less efficient than Variable Inlet Vanes or Inlet Box with Inlet Damper. Northern Blower Outlet Dampers have punched flanges on both ends to allow for convenient fan and duct connections. Both parallel blade and opposed blade designs are available for operating temperatures to 650° F.
Encloses the shaft and bearings from the fan drive side to just beyond the outboard fan bearing. Guard includes accessible grease fittings for both bearings.
Raised Access Door
Flush Access Door
Inlet Screen
Access door raised 6" beyond scroll surface to provide room for insulation on exterior of fan housing. Insulated door plug surface is flush with inside of housing scroll.
Access door mounted flush to the fan scroll and secured with bolted clips. Quick release handle system also available.
Steel screen mounted to the inlet cone.
4
Accessories
Cooling Wheel
Shaft Seal
Belt Guard
Split aluminum wheel mounted between the inboard bearing and the fan housing. Protects the inboard bearing from shaft conveyed heat and housing radiated heat. Supplied with protective guard as standard. Required for high temperature application; see Table 2 on Page 6.
Used to reduce leakage through the shaft hole in the housing. Seal material aluminum, brass, or Compressed NonAsbestos Gasket Sheet, depending on fan application.
Enclosed on all sides for safe operation and vented to prevent overheating. Tachometer holes, hinged cover, and safety colour coatings also available.
Unitary Base
Additional Accessories
Rigid steel frame to provide a common mounting platform for fan and motor. May be ordered with spring or rubber-inshear isolators and motor slide base.
• Spark Resistant Construction • Protective Coatings • Special Metals • Drain Openings • High Temperature Construction • Extended Grease Fittings • Insulation Clips • Mounted Drive Package
Flanged Outlet/ Flanged Inlet Punched flanges to facilitate the bolting of duct connections to the fan inlet and outlet. Flanged Outlet is a built-in feature of the Series 7600 fans, punched to suit outlet damper flange holes.
Due to the wide variety of BI fans available from Northern Blower we are unable to publish all information in one bulletin. Further information on custom fans is available from your Northern Blower sales representative.
5
Selection
Fan Selection at Elevated Temperature and Altitude Fan Selection Tables Ratings shown in the Performance Tables are based on standard air density of .075 pounds per cubic foot at the fan inlet. Standard air is dry air at 70° F and 29.92" Hg barometric pressure. When air density varies from standard, due to temperature or altitude changes, the Air Density Correction . Factor from Table 3 is applied. Refer to the sample selection that follows.
Table 2 High Temperature Operating Limits with Steel Wheels Arrangement
Without Cooling Wheel
With Cooling Wheel
1 SW
300°F
650°F *
9 SW
300°F
650°F
* Class III with cooling wheel and shaft seal to 800°F Note that data in the selection tables does not include the effects of accessories such as inlet dampers, outlet dampers, screens, or other components in the air stream.
Table 3 Air Density Correction Factor
High Temperature Fan selected for high temperature service must fall within the limits for a particular arrangement as shown in Table 2. For selection, both fan performance and physical operating limits must be corrected. Refer to the sample selection on the following page.
Table 1 Wheel & Shaft Maximum Speeds at 70°F ( SISW only ) Size
6
Class I Shaft
Class II
Wheel
Shaft
Wheel
1225
3425
3425
4463
4463
1350
3032
3335
3951
4149
1500
2719
2855
3542
3613
1650
2471
2595
3219
3219
Class III Shaft
Wheel
1825
2190
2300
2854
2911
2000
1996
1996
2600
2652
2225
1802
1892
2347
2464
2450
1694
1728
2208
2318
2777
2777
2700
1538
1615
2003
2103
2520
2646
3000
1383
1452
1802
1892
2267
2380
3300
1246
1308
1624
1705
2042
2083
3650
1126
1182
1467
1467
1845
1845
4025
1021
1072
1331
1358
1674
1758
4450
922
968
1201
1225
1511
1541
Air Temp °F -40° 0° 40° 70° 100° 140° 180° 200° 250° 300° 350° 400° 450° 500° 600° 700° 800°
Elevation (Feet) above Sea Level 0 .79 .87 .94 1.00 1.06 1.13 1.21 1.25 1.34 1.43 1.53 1.62 1.72 1.81 2.00 2.19 2.38
500 .81 .88 .96 1.02 1.08 1.15 1.23 1.27 1.36 1.46 1.56 1.65 1.75 1.84 2.04 2.23 2.42
1000 .82 .90 .98 1.04 1.10 1.17 1.25 1.29 1.39 1.49 1.58 1.68 1.78 1.88 2.07 2.27 2.46
2000 .85 .93 1.01 1.08 1.14 1.22 1.30 1.34 1.44 1.54 1.64 1.75 1.85 1.95 2.15 2.35 2.56
3000 .88 .97 1.05 1.12 1.18 1.26 1.35 1.39 1.49 1.60 1.71 1.81 1.92 2.02 2.23 2.44 2.65
4000 .92 1.00 1.09 1.16 1.22 1.31 1.40 1.44 1.55 1.66 1.77 1.88 1.99 2.10 2.32 2.53 2.75
5000 .95 1.04 1.13 1.20 1.27 1.36 1.45 1.50 1.61 1.72 1.84 1.95 2.06 2.18 2.40 2.63 2.86
Table 4
4900
837
879
1090
1145
1371
1398
5425
756
794
986
1035
1240
1265
Safe Speed Deration Factors Temp °F -50 to 150 200 300 400 500 600 700 800
Steel Wheel 1.0 .93 .89 .86 .82 .79 .76 .68
Steel Shaft 1.0 1.0 1.0 .99 .97 .96 .95 .94
Selection
Sample Selection of a Belt Drive Fan Select a fan for the operating conditions of 7500 CFM at 2-1/2" SP, 500°F and 0 feet elevation.
Operating BHP =
= Operating SP x Air Density Corr. Factor = 2-1/2" x 1.81 = 4-1/2"
2) From the Performance Table, select the fan size. For 7500 CFM at 4-1/2" SP an efficient selection would be a size 2450 fan. Interpolating from the Performance Table given on page 14, the selection fan performance is 1505 RPM and 7.13 BHP at standard temperature and pressure.
7.13 1.81
=
1) Multiply the Operating SP by the Air Density Correction Factor (Table 3) to obtain Equivalent SP: Equivalent SP
Equivalent BHP Air Density Correction Factor
= 3.94 BHP
4) Multiply the Wheel & Shaft Maximum Speed at 70°F values (Table 1) by the Wheel & Shaft Safe Speed Deration Factors (Table 4). For size 2450, Class II, the maximum speed at 500° F is: Wheel = 2318 x 0.82 = 1901 RPM Shaft = 2208 x 0.97 = 2142 RPM Since the fan selection speed of 1505 RPM is below both the maximum allowable wheel and shaft speeds, the Class II fan is a suitable selection.
3) Divide the Equivalent BHP by the Air Density Correction Factor to obtain the Operating BHP:
Design 7620 Performance Curve 120
TP BHP
Percent Pressure, Brake Horsepower, and Efficiency
SP 100
80 ME
SE
60
40
20
0
20
40
60
80
100
Percent free delivery volume - CFM • High Efficiency • Stable Operation
7
Performance Data
Wheel Diameter = 12.25 in. Outlet Area = 0.86 sq. ft. inside Maximum BHP = .068 x (RPM/1000)3 Tip Speed, fpm = 3.21 x RPM
Size
1225
SISW
Class I Class II
RPM 3425 RPM 4463
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
400 450 500 550 600
464 522 580 638 696
691 724 762 803 846
0.02 0.03 0.03 0.03 0.04
797 823 853 886 924
0.03 0.04 0.04 0.05 0.05
896 915 940 968 999
0.04 0.05 0.05 0.06 0.07
1003 1022 1046 1073
0.06 0.07 0.07 0.08
1100 1120 1144
0.08 0.09 0.09
1192 1212
0.10 0.11
1279
0.13
700 800 900 1000 1100
812 928 1044 1160 1276
932 1020 1113 1212 1314
0.05 0.07 0.09 0.12 0.15
1006 1092 1178 1267 1361
0.07 0.09 0.11 0.14 0.17
1072 1155 1240 1326 1413
0.08 0.10 0.13 0.15 0.19
1137 1213 1296 1381 1467
0.10 0.12 0.15 0.18 0.21
1201 1269 1347 1431 1517
0.11 0.14 0.16 0.20 0.23
1264 1326 1398 1478 1563
0.13 0.15 0.18 0.22 0.26
1325 1381 1448 1524 1606
1200 1300 1400 1500 1600
1392 1508 1624 1740 1856
1419 1525 1632 1740 1848
0.18 0.22 0.27 0.33 0.39
1460 1561 1665 1770 1876
0.20 0.25 0.30 0.35 0.42
1505 1601 1700 1801 1905
0.23 0.27 0.32 0.38 0.44
1554 1644 1738 1835 1935
0.25 0.30 0.35 0.41 0.47
1603 1689 1778 1871 1968
0.27 0.32 0.37 0.43 0.50
1648 1734 1821 1910 2002
0.30 0.35 0.40 0.46 0.53
1700 1800 1900 2000 2200
1972 2088 2204 2320 2552
1957 2066 2176 2286 2506
0.46 0.54 0.62 0.72 0.94
1983 2091 2199 2307 2526
0.49 0.57 0.66 0.75 0.98
2010 2116 2222 2330 2546
0.52 0.60 0.69 0.79 1.02
2037 2141 2246 2352 2566
0.55 0.63 0.72 0.82 1.05
2067 2168 2271 2375 2586
0.58 0.66 0.75 0.86 1.09
2098 2196 2296 2399 2607
2400 2600 2800 3000 3200
2784 3016 3248 3480 3713
2726 2948 3169 3391 3614
1.21 1.53 1.89 2.31 2.79
2745 2965 3185 3406 3627
1.25 1.57 1.94 2.36 2.84
2763 2982 3201 3421 3641
1.29 1.61 1.98 2.41 2.90
2781 2999 3217 3436 3655
1.33 1.65 2.03 2.46 2.95
2800 3015 3232 3450 3669
1.37 1.70 2.08 2.51 3.00
3400 3600 3800
3945 4177 4409
3836 4059 4282
3.33 3.94 4.62
3849 4071 4293
3.39 4.00 4.68
3862 4083 4305
3.44 4.06 4.75
3875 4096 4317
3.50 4.12 4.81
3889 4108 4328
3.56 4.18 4.87
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
BHP
RPM
BHP
0.15 0.17 0.20 0.24 0.28
1441 1491 1548 1614 1689
0.18 0.21 0.24 0.28 0.32
1554 1594 1645 1704 1771
0.22 0.25 0.28 0.32 0.37
1693 1739 1792 1853
0.29 0.33 0.37 0.42
1691 1777 1863 1949 2038
0.32 0.37 0.43 0.49 0.56
1771 1855 1940 2026 2112
0.37 0.43 0.49 0.55 0.63
1846 1927 2011 2097 2182
0.42 0.48 0.55 0.62 0.69
1922 1997 2078 2162 2247
0.47 0.53 0.60 0.68 0.76
0.61 0.69 0.79 0.89 1.13
2130 2226 2323 2423 2628
0.64 0.73 0.82 0.93 1.17
2199 2289 2381 2476 2673
0.71 0.80 0.90 1.00 1.25
2268 2354 2442 2532 2720
0.78 0.87 0.97 1.08 1.33
2332 2418 2504 2591 2771
0.85 0.94 1.04 1.16 1.41
2818 3032 3248 3465 3683
1.41 1.74 2.12 2.56 3.05
2837 3049 3263 3479 3696
1.45 1.79 2.17 2.61 3.11
2876 3084 3295 3508 3723
1.54 1.87 2.26 2.71 3.21
2917 3120 3327 3538 3751
1.63 1.97 2.36 2.81 3.32
2961 3158 3361 3568 3778
1.71 2.06 2.46 2.92 3.43
3901 4121 4340
3.61 4.24 4.94
3914 4133 4352
3.67 4.30 5.00
3939 4157 4375
3.78 4.41 5.12
3965 4180 4397
3.90 4.53 5.25
3990 4204 4419
4.01 4.66 5.37
4"SP
4-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
800 900 1000 1100 1200
928 1044 1160 1276 1392
1792 1829 1878 1934 1996
0.34 0.37 0.42 0.47 0.53
1917 1961 2013 2071
0.42 0.47 0.52 0.58
2004 2041 2090 2144
0.48 0.52 0.57 0.63
2199 2238 2286
0.63 0.69 0.75
2381 2422
0.81 0.87
2554
1.00
2684
1.14
1300 1400 1500 1600 1700
1508 1624 1740 1856 1972
2066 2143 2224 2307 2392
0.59 0.66 0.74 0.83 0.92
2136 2207 2284 2366 2449
0.65 0.72 0.80 0.89 0.99
2205 2271 2344 2423 2505
0.70 0.78 0.86 0.95 1.06
2340 2399 2464 2535 2611
0.82 0.90 0.99 1.09 1.19
2471 2525 2583 2647 2717
0.95 1.03 1.12 1.23 1.34
2597 2646 2700 2758 2822
1.08 1.17 1.26 1.37 1.49
2719 2763 2814 2868 2926
1800 2000 2200 2400 2600
2088 2320 2552 2784 3016
2478 2650 2824 3007 3198
1.02 1.24 1.50 1.81 2.16
2534 2705 2878 3055 3240
1.09 1.32 1.59 1.90 2.26
2589 2759 2931 3104 3284
1.17 1.40 1.68 1.99 2.36
2691 2859 3029 3201 3374
1.31 1.57 1.86 2.18 2.56
2792 2952 3120 3291 3463
1.46 1.73 2.04 2.38 2.77
2891 3042 3206 3375 3547
1.61 1.89 2.22 2.58 2.98
2800 3000 3200 3400 3600
3248 3480 3713 3945 4177
3396 3600 3807 4017 4229
2.56 3.02 3.54 4.12 4.78
3433 3632 3836 4043 4253
2.67 3.13 3.65 4.24 4.90
3471 3666 3866 4071 4278
2.77 3.24 3.77 4.36 5.02
3552 3737 3930 4128 4331
2.98 3.47 4.00 4.61 5.28
3636 3813 3998 4189 4385
3.20 3.69 4.25 4.86 5.54
3718 3891 4069 4253 4443
3.42 3.93 4.49 5.11 5.81
3800
4409
4442
5.50 7-1/2"SP
8"SP
8-1/2"SP
1-3/4"SP
RPM
RPM
7"SP
1-1/2"SP
BHP
FPM
6-1/2"SP
1-1/4"SP RPM
CFM
Volume O.Vel
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
1.22 1.31 1.41 1.52 1.64
2839 2878 2923 2976 3030
1.36 1.45 1.56 1.67 1.79
2990 3031 3080 3131
1.61 1.71 1.83 1.95
3101 3136 3181 3229
1.77 1.87 1.99 2.12
2990 3132 3289 3456 3626
1.77 2.06 2.39 2.78 3.20
3089 3221 3371 3533 3701
1.93 2.23 2.57 2.97 3.41
3186 3310 3452 3608 3773
2.09 2.40 2.76 3.16 3.62
3282 3399 3533 3682 3843
2.26 2.58 2.95 3.36 3.83
3797 3968 4142 4320
3.66 4.16 4.74 5.37
3871 4042 4214 4388
3.89 4.41 4.99 5.63
3942 4113 4284 4456
4.12 4.66 5.25 5.90
4011 4181 4352
4.35 4.91 5.52
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1500 1600 1700 1800 2000
1740 1856 1972 2088 2320
3241 3280 3326 3376 3488
2.04 2.16 2.29 2.44 2.76
3345 3378 3420 3469 3575
2.21 2.33 2.46 2.61 2.94
3476 3514 3558 3660
2.51 2.64 2.79 3.13
3573 3606 3647 3745
2.70 2.83 2.98 3.33
3697 3735 3828
3.02 3.17 3.52
3789 3822 3908
3.22 3.37 3.72
3908 3989
3.57 3.93
3995 4068
3.78 4.13
4147
4.35
4225
4.56
2200 2400 2600 2800 3000
2552 2784 3016 3248 3480
3615 3757 3913 4077 4245
3.14 3.56 4.04 4.57 5.15
3695 3831 3981 4142 4309
3.33 3.77 4.25 4.79 5.39
3775 3905 4050 4206 4370
3.52 3.97 4.47 5.02 5.63
3855 3979 4118 4269 4430
3.72 4.18 4.69 5.24 5.87
3934 4053 4186 4333
3.93 4.39 4.91 5.48
4011 4126 4255 4396
4.13 4.60 5.13 5.71
4089 4199 4322 4460
4.35 4.82 5.35 5.95
4163 4271 4391
4.56 5.04 5.58
4238 4342 4457
4.78 5.26 5.81
4311 4413
4.99 5.49
3200
3713
4416
5.78
The BHP shown does not include belt drive losses.
8
1/2"SP
CFM
Belt drive is not recommended above 3600 RPM.
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 13.50 in. Outlet Area = 1.05 sq. ft. inside Maximum BHP = .119 x (RPM/1000)3 Tip Speed, fpm = 3.53 x RPM Class I Class II
Size
1350
RPM 3032 RPM 3951
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
600 700 800 900 1000
572 668 763 859 954
669 724 785 849 917
0.03 0.04 0.06 0.07 0.09
762 803 854 912 974
0.05 0.06 0.07 0.09 0.11
848 882 923 973 1029
0.06 0.08 0.09 0.11 0.13
927 958 993 1035 1085
0.08 0.09 0.11 0.13 0.15
1001 1028 1060 1097 1140
0.10 0.11 0.13 0.15 0.17
1094 1124 1158 1196
0.13 0.15 0.17 0.19
1157 1185 1216 1251
0.15 0.17 0.19 0.21
1297 1326 1357
0.21 0.24 0.26
1402 1428 1456
0.26 0.29 0.32
1523 1550
0.34 0.37
1100 1200 1300 1400 1500
1049 1145 1240 1335 1431
987 1058 1131 1204 1279
0.11 0.13 0.16 0.19 0.23
1039 1106 1175 1246 1318
0.13 0.16 0.19 0.22 0.26
1090 1153 1219 1287 1356
0.15 0.18 0.21 0.25 0.29
1140 1200 1262 1327 1394
0.17 0.20 0.24 0.27 0.32
1191 1246 1305 1368 1432
0.20 0.23 0.26 0.30 0.35
1241 1292 1348 1407 1469
0.22 0.25 0.29 0.33 0.37
1291 1338 1390 1447 1506
0.24 0.27 0.31 0.36 0.40
1392 1431 1475 1526 1580
0.29 0.33 0.37 0.41 0.46
1488 1523 1561 1605 1654
0.35 0.38 0.42 0.47 0.52
1579 1611 1646 1684 1727
0.41 0.45 0.49 0.53 0.58
1600 1800 2000 2200 2400
1526 1717 1908 2099 2289
1354 1506 1660 1814 1970
0.27 0.37 0.49 0.63 0.80
1391 1539 1689 1841 1995
0.30 0.40 0.52 0.67 0.85
1427 1571 1718 1868 2019
0.33 0.44 0.56 0.71 0.89
1462 1603 1747 1894 2043
0.36 0.47 0.60 0.75 0.94
1498 1635 1776 1920 2067
0.39 0.50 0.64 0.80 0.98
1533 1666 1805 1947 2091
0.42 0.54 0.68 0.84 1.03
1568 1698 1833 1972 2115
0.46 0.57 0.71 0.88 1.07
1638 1760 1889 2024 2163
0.52 0.64 0.79 0.96 1.16
1707 1822 1946 2076 2210
0.58 0.71 0.87 1.05 1.26
1776 1883 2001 2126 2257
0.64 0.78 0.95 1.13 1.35
2600 2800 3000 3200 3400
2480 2671 2862 3052 3243
2126 2283 2440 2597 2755
1.01 1.24 1.51 1.82 2.16
2149 2304 2460 2616 2773
1.05 1.29 1.57 1.88 2.23
2172 2325 2480 2635 2791
1.10 1.34 1.62 1.93 2.29
2194 2346 2499 2653 2808
1.15 1.39 1.68 1.99 2.35
2216 2367 2518 2671 2825
1.20 1.45 1.73 2.05 2.41
2238 2387 2538 2689 2842
1.25 1.50 1.79 2.11 2.47
2261 2408 2557 2707 2859
1.30 1.55 1.84 2.17 2.54
2305 2449 2595 2743 2893
1.39 1.66 1.95 2.29 2.66
2349 2490 2634 2780 2927
1.49 1.76 2.06 2.41 2.79
2392 2531 2672 2815 2960
1.59 1.87 2.18 2.53 2.92
3600 3800 4000 4200 4400
3434 3625 3816 4006 4197
2913 3071 3230 3388 3547
2.55 2.99 3.47 4.00 4.58
2930 3087 3245 3403 3561
2.62 3.06 3.54 4.07 4.66
2947 3103 3260 3417 3575
2.68 3.13 3.61 4.15 4.74
2963 3119 3275 3432 3589
2.75 3.19 3.69 4.23 4.82
2979 3134 3290 3446 3602
2.81 3.26 3.76 4.30 4.90
2996 3150 3304 3460 3615
2.88 3.33 3.83 4.38 4.98
3012 3165 3319 3474 3629
2.95 3.40 3.90 4.46 5.06
3044 3195 3348 3501 3655
3.08 3.54 4.05 4.61 5.22
3075 3226 3376 3528 3681
3.21 3.68 4.20 4.76 5.38
3107 3255 3405 3555 3707
3.35 3.82 4.35 4.92 5.54
4600 4800
4388 4579
3706 3864
5.22 5.92
3719 3877
5.30 6.00
3732 3890
5.39 6.09
3745 3903
5.47 6.18
3759 3915
5.56 6.27
3771 3928
5.64 6.35
3784 3940
5.72 6.44
3809
5.89
3835
6.06
3859
6.22
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1000 1100 1200 1300 1400
954 1049 1145 1240 1335
1637 1665 1695 1728 1763
0.43 0.47 0.51 0.55 0.60
1722 1748 1776 1806 1840
0.49 0.53 0.57 0.62 0.67
1827 1853 1881 1914
0.59 0.64 0.69 0.74
1999 2025 2054
0.77 0.83 0.89
2160 2185
0.98 1.04
2285 2310
1.13 1.20
2430
1.37
1500 1600 1800 2000 2200
1431 1526 1717 1908 2099
1802 1845 1945 2057 2177
0.65 0.71 0.85 1.02 1.22
1876 1914 2006 2112 2228
0.72 0.78 0.93 1.10 1.30
1947 1984 2067 2167 2278
0.80 0.86 1.00 1.18 1.39
2084 2118 2191 2277 2378
0.95 1.02 1.17 1.34 1.56
2215 2244 2312 2388 2477
1.11 1.18 1.34 1.52 1.74
2337 2366 2428 2499 2578
1.27 1.35 1.52 1.71 1.93
2453 2480 2539 2606 2679
2400 2600 2800 3000 3200
2289 2480 2671 2862 3052
2304 2436 2571 2710 2851
1.44 1.69 1.97 2.29 2.65
2350 2479 2611 2747 2886
1.54 1.79 2.08 2.41 2.77
2397 2522 2651 2785 2921
1.63 1.89 2.19 2.52 2.89
2489 2607 2731 2859 2991
1.81 2.10 2.41 2.75 3.14
2580 2692 2810 2933 3061
2.00 2.29 2.62 2.99 3.38
2671 2776 2888 3007 3130
2.19 2.49 2.84 3.22 3.63
3400 3600 3800 4000 4200
3243 3434 3625 3816 4006
2994 3139 3286 3433 3583
3.04 3.48 3.96 4.49 5.07
3028 3171 3316 3462 3609
3.17 3.61 4.10 4.64 5.23
3061 3202 3345 3490 3637
3.30 3.75 4.25 4.79 5.38
3127 3265 3405 3547 3690
3.56 4.03 4.53 5.09 5.70
3192 3327 3464 3603 3744
3.82 4.30 4.82 5.39 6.01
3258 3389 3523 3659 3798
4.08 4.57 5.11 5.69 6.33
4400 4600
4197 4388
3733 3884
5.71 6.39
3758 3909
5.87 6.56
3784 3933
6.03 6.73
3836
6.36
3887
6.68
3938
7.01
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
1.44 1.53 1.71 1.91 2.14
2565 2590 2647 2709 2778
1.62 1.71 1.90 2.11 2.35
2696 2750 2809 2875
1.89 2.10 2.32 2.56
2798 2850 2905 2969
2.08 2.29 2.53 2.78
2763 2860 2966 3080 3199
2.39 2.70 3.05 3.45 3.88
2855 2944 3044 3153 3268
2.61 2.92 3.27 3.67 4.12
2947 3029 3122 3226 3336
2.84 3.14 3.50 3.91 4.36
3038 3115 3201 3298 3404
3.07 3.38 3.74 4.14 4.61
3323 3450 3581 3715 3850
4.34 4.85 5.40 6.00 6.64
3388 3512 3639 3770 3903
4.61 5.13 5.69 6.30 6.97
3452 3573 3697 3825
4.87 5.41 5.99 6.61
3516 3633 3755 3880
5.12 5.68 6.28 6.92
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2200 2400 2600
1717 1908 2099 2289 2480
2945 2999 3060 3127 3199
2.50 2.74 3.01 3.30 3.62
3038 3091 3149 3213 3283
2.71 2.96 3.24 3.54 3.87
3130 3181 3237 3298 3365
2.92 3.19 3.48 3.79 4.13
3266 3320 3380 3446
3.41 3.71 4.03 4.39
3350 3403 3460 3523
3.64 3.95 4.28 4.65
3433 3485 3540 3600
3.88 4.20 4.54 4.92
3512 3562 3616 3676
4.12 4.44 4.80 5.19
3641 3692 3749
4.70 5.06 5.45
3714 3766 3823
4.95 5.33 5.74
3790 3839 3893
5.22 5.60 6.01
2800 3000 3200 3400 3600
2671 2862 3052 3243 3434
3280 3371 3472 3580 3694
3.98 4.39 4.86 5.38 5.95
3359 3444 3540 3644 3755
4.24 4.65 5.12 5.64 6.22
3437 3518 3608 3707 3814
4.50 4.92 5.38 5.91 6.50
3515 3591 3677 3772 3875
4.77 5.19 5.66 6.19 6.78
3592 3664 3746 3836 3934
5.05 5.47 5.94 6.47 7.06
3667 3738 3814 3900
5.32 5.76 6.23 6.76
3740 3809 3883
5.60 6.05 6.53
3813 3880
5.89 6.34
3883 3950
6.17 6.64
3800 4000
3625 3816
3812 3935
6.57 7.23
3870
6.86
3927
7.14
The BHP shown does not include belt drive losses.
Belt drive is not recommended above 3600 RPM.
The performance shown is for fan with outlet duct.
9
Performance Data
Wheel Diameter = 15.00 in. Outlet Area = 1.29 sq. ft. inside Maximum BHP = .201 x (RPM/1000)3 Tip Speed, fpm = 3.93 x RPM
Size
1500
SISW
Class I Class II
RPM 2719 RPM 3542
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
600 800 1000 1200 1400
464 618 773 927 1082
559 625 712 808 910
0.03 0.05 0.07 0.10 0.15
652 702 774 860 955
0.05 0.07 0.09 0.13 0.17
734 778 835 912 1000
0.06 0.09 0.11 0.15 0.20
847 897 963 1044
0.11 0.13 0.17 0.23
912 957 1014 1088
0.13 0.16 0.20 0.25
973 1014 1066 1132
0.15 0.19 0.23 0.28
1029 1068 1117 1176
0.17 0.21 0.26 0.31
1170 1213 1264
0.27 0.32 0.38
1264 1303 1350
0.33 0.38 0.45
1388 1430
0.45 0.52
1600 1800 2000 2200 2400
1236 1391 1545 1700 1854
1015 1123 1232 1343 1455
0.20 0.26 0.35 0.44 0.56
1055 1159 1265 1373 1482
0.23 0.30 0.38 0.48 0.60
1095 1194 1297 1402 1509
0.26 0.33 0.42 0.53 0.65
1134 1229 1329 1431 1536
0.29 0.37 0.46 0.57 0.69
1173 1264 1360 1460 1562
0.32 0.40 0.50 0.61 0.74
1211 1299 1392 1489 1589
0.35 0.44 0.54 0.65 0.78
1249 1333 1423 1517 1615
0.38 0.47 0.58 0.69 0.83
1326 1401 1485 1574 1668
0.45 0.54 0.65 0.78 0.92
1404 1469 1546 1630 1719
0.52 0.61 0.73 0.86 1.02
1480 1538 1607 1686 1771
0.60 0.69 0.81 0.95 1.11
2600 2800 3000 3200 3400
2009 2163 2318 2472 2627
1567 1680 1794 1908 2022
0.69 0.85 1.03 1.23 1.46
1592 1704 1816 1928 2042
0.74 0.90 1.08 1.29 1.52
1617 1727 1837 1949 2061
0.79 0.95 1.14 1.35 1.59
1642 1750 1859 1969 2080
0.84 1.00 1.19 1.41 1.65
1667 1773 1880 1989 2099
0.89 1.06 1.25 1.47 1.71
1691 1796 1902 2009 2118
0.94 1.11 1.31 1.53 1.77
1716 1819 1923 2029 2136
0.99 1.16 1.36 1.59 1.84
1764 1864 1966 2069 2174
1.09 1.27 1.48 1.71 1.97
1812 1909 2008 2109 2212
1.19 1.38 1.59 1.83 2.09
1860 1953 2049 2148 2249
1.29 1.49 1.71 1.95 2.22
3600 3800 4000 4200 4400
2782 2936 3091 3245 3400
2137 2251 2366 2481 2596
1.72 2.01 2.33 2.68 3.06
2155 2269 2383 2497 2612
1.79 2.08 2.40 2.75 3.14
2173 2286 2399 2513 2627
1.85 2.15 2.47 2.83 3.22
2191 2303 2416 2528 2642
1.92 2.22 2.54 2.91 3.30
2209 2320 2432 2544 2656
1.98 2.28 2.62 2.98 3.38
2227 2337 2448 2559 2671
2.05 2.35 2.69 3.06 3.46
2245 2354 2464 2574 2686
2.12 2.43 2.76 3.14 3.54
2281 2388 2496 2605 2715
2.25 2.57 2.91 3.29 3.70
2316 2421 2528 2635 2744
2.39 2.71 3.06 3.45 3.87
2351 2455 2560 2666 2773
2.52 2.85 3.21 3.61 4.03
4600 4800 5000 5200 5400
3554 3709 3863 4018 4172
2711 2827 2942 3058 3173
3.48 3.94 4.44 4.98 5.56
2726 2841 2956 3071 3186
3.57 4.03 4.53 5.07 5.66
2741 2855 2970 3084 3199
3.65 4.12 4.62 5.17 5.76
2755 2869 2983 3097 3211
3.73 4.20 4.71 5.26 5.86
2769 2882 2996 3110 3223
3.82 4.29 4.80 5.36 5.95
2783 2896 3009 3122 3236
3.90 4.38 4.89 5.45 6.05
2798 2910 3022 3135 3248
3.99 4.47 4.99 5.54 6.15
2825 2936 3047 3160 3272
4.15 4.64 5.17 5.74 6.35
2853 2963 3073 3184 3295
4.33 4.82 5.35 5.92 6.54
2880 2989 3098 3208 3318
4.49 4.99 5.54 6.12 6.74
5600 5800 6000
4327 4481 4636
3289 3405 3521
6.19 6.86 7.58
3301 3417 3532
6.29 6.96 7.68
3313 3428
6.39 7.07
3326 3440
6.49 7.17
3338 3452
6.59 7.28
3349 3463
6.69 7.38
3361 3474
6.80 7.49
3384 3497
7.00 7.70
3407 3519
7.21 7.91
3429 3540
7.41 8.12
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1200 1400 1600 1800 2000
927 1082 1236 1391 1545
1467 1508 1554 1606 1669
0.52 0.59 0.68 0.78 0.89
1543 1581 1624 1674 1730
0.59 0.67 0.76 0.86 0.98
1651 1692 1740 1792
0.75 0.84 0.96 1.08
1784 1821 1864 1912
0.91 1.02 1.14 1.27
1943 1981 2026
1.20 1.33 1.48
2056 2094 2134
1.39 1.53 1.69
2199 2238
1.74 1.91
2300 2337
1.95 2.13
2432
2.36
2524
2.60
2200 2400 2600 2800 3000
1700 1854 2009 2163 2318
1741 1822 1908 1998 2091
1.04 1.20 1.39 1.60 1.82
1797 1873 1955 2042 2133
1.13 1.29 1.49 1.71 1.94
1853 1923 2002 2086 2174
1.22 1.39 1.59 1.81 2.06
1965 2026 2096 2173 2255
1.42 1.59 1.79 2.03 2.29
2075 2129 2190 2260 2337
1.64 1.81 2.02 2.25 2.52
2180 2230 2285 2347 2418
1.86 2.05 2.25 2.49 2.76
2281 2328 2379 2435 2499
2.09 2.29 2.50 2.74 3.01
2377 2422 2470 2523 2581
2.32 2.53 2.76 3.00 3.28
2470 2512 2559 2610 2663
2.56 2.78 3.02 3.28 3.55
2561 2600 2644 2693 2744
2.81 3.04 3.28 3.56 3.84
3200 3400 3600 3800 4000
2472 2627 2782 2936 3091
2187 2286 2386 2488 2592
2.07 2.35 2.66 2.99 3.36
2226 2322 2421 2521 2623
2.20 2.48 2.80 3.14 3.51
2265 2359 2455 2554 2654
2.32 2.62 2.94 3.28 3.67
2342 2432 2524 2619 2717
2.57 2.88 3.21 3.58 3.97
2418 2504 2593 2685 2779
2.82 3.14 3.49 3.87 4.28
2494 2576 2661 2749 2840
3.06 3.40 3.77 4.17 4.59
2570 2647 2728 2813 2902
3.32 3.66 4.04 4.46 4.90
2647 2718 2796 2877 2962
3.58 3.93 4.32 4.74 5.20
2723 2790 2863 2941 3023
3.87 4.21 4.60 5.03 5.51
2800 2862 2930 3005 3083
4.16 4.51 4.90 5.33 5.81
4200 4400 4600 4800 5000
3245 3400 3554 3709 3863
2696 2801 2908 3015 3123
3.76 4.19 4.67 5.17 5.72
2726 2830 2935 3042 3149
3.92 4.36 4.84 5.35 5.90
2756 2859 2963 3068 3174
4.08 4.53 5.01 5.53 6.09
2815 2916 3017 3120 3225
4.40 4.86 5.36 5.89 6.47
2874 2973 3072 3173 3274
4.72 5.20 5.70 6.26 6.84
2933 3029 3126 3224 3324
5.04 5.53 6.06 6.62 7.22
2992 3084 3179 3275 3374
5.37 5.87 6.41 6.98 7.60
3050 3140 3232 3327 3423
5.70 6.21 6.76 7.35 7.98
3108 3196 3285 3378 3472
6.01 6.56 7.12 7.72 8.36
3166 3251 3339 3428 3521
6.33 6.88 7.48 8.09 8.75
5200 5400 5600
4018 4172 4327
3232 3342 3452
6.31 6.94 7.61
3257 3365 3474
6.50 7.14 7.82
3281 3388 3497
6.69 7.33 8.02
3329 3435 3542
7.08 7.74 8.44
3377 3482
7.47 8.14
3425 3527
7.86 8.54
3473
8.25
3520
8.65
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2200 2400 2600 2800 3000
1700 1854 2009 2163 2318
2647 2686 2728 2774 2824
3.06 3.30 3.56 3.84 4.14
2730 2769 2809 2853 2902
3.31 3.57 3.83 4.12 4.44
2812 2848 2889 2930 2977
3.58 3.84 4.12 4.41 4.74
2927 2965 3007 3050
4.11 4.40 4.72 5.04
3003 3040 3079 3122
4.40 4.70 5.02 5.36
3077 3113 3152 3193
4.68 4.99 5.32 5.67
3184 3223 3262
5.29 5.64 5.99
3255 3291 3332
5.60 5.95 6.33
3323 3359 3397
5.91 6.27 6.65
3424 3464
6.59 6.99
3200 3400 3600 3800 4000
2472 2627 2782 2936 3091
2877 2934 2998 3068 3144
4.46 4.81 5.20 5.64 6.12
2952 3006 3067 3132 3204
4.77 5.13 5.52 5.96 6.44
3026 3079 3135 3197 3264
5.08 5.45 5.85 6.28 6.77
3099 3149 3202 3261 3326
5.40 5.78 6.18 6.62 7.11
3169 3218 3270 3326 3387
5.72 6.11 6.53 6.97 7.46
3238 3287 3336 3390 3448
6.05 6.46 6.88 7.33 7.82
3307 3352 3401 3454 3509
6.39 6.79 7.23 7.69 8.19
3372 3418 3467 3516
6.71 7.14 7.59 8.06
3438 3482 3529
7.06 7.49 7.95
3502
7.40
4200 3245 3223 6.65 3281 6.97 3338 4400 3400 3306 7.21 3361 7.55 3415 4600 3554 3391 7.82 3444 8.17 3496 4800 3709 3480 8.47 3530 8.82 The BHP shown does not include belt drive losses.
7.30 7.88 8.52
3395 3470
7.64 8.23
3453 3525
7.99 8.58
3511
8.35
10
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 16.50 in. Outlet Area = 1.56 sq. ft. inside Maximum BHP = .324 x (RPM/1000)3 Tip Speed, fpm = 4.32 x RPM Class I Class II
Size
1650
RPM 2471 RPM 3219
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
800 1000 1200 1400 1600
511 639 766 894 1022
523 578 644 715 791
0.04 0.06 0.09 0.12 0.15
605 646 700 764 834
0.06 0.08 0.11 0.14 0.19
678 713 757 813 877
0.09 0.11 0.13 0.17 0.22
744 775 813 861 919
0.11 0.13 0.16 0.20 0.25
834 868 910 961
0.16 0.19 0.23 0.28
888 920 958 1004
0.19 0.22 0.26 0.31
940 970 1005 1046
0.22 0.25 0.30 0.35
1062 1094 1131
0.32 0.37 0.43
1148 1177 1210
0.39 0.45 0.51
1254 1284
0.52 0.59
1800 2000 2200 2400 2600
1149 1277 1405 1533 1660
869 949 1030 1112 1195
0.20 0.26 0.33 0.41 0.50
908 984 1062 1142 1222
0.24 0.30 0.37 0.45 0.55
946 1019 1094 1171 1250
0.27 0.34 0.41 0.50 0.60
984 1053 1126 1200 1277
0.31 0.38 0.45 0.55 0.65
1022 1087 1157 1229 1304
0.34 0.41 0.50 0.59 0.70
1059 1122 1188 1258 1330
0.38 0.45 0.54 0.64 0.75
1097 1155 1219 1287 1357
0.41 0.49 0.58 0.69 0.80
1172 1223 1280 1343 1410
0.49 0.57 0.67 0.78 0.90
1247 1291 1342 1399 1462
0.58 0.66 0.76 0.87 1.00
1320 1359 1403 1456 1514
0.67 0.75 0.85 0.97 1.10
2800 3000 3200 3400 3600
1788 1916 2043 2171 2299
1279 1363 1448 1533 1618
0.61 0.74 0.88 1.04 1.22
1304 1387 1470 1554 1638
0.67 0.79 0.94 1.10 1.28
1330 1411 1493 1575 1658
0.72 0.85 1.00 1.16 1.35
1355 1434 1515 1596 1678
0.77 0.91 1.06 1.23 1.42
1380 1458 1537 1617 1697
0.82 0.96 1.12 1.29 1.48
1405 1481 1559 1637 1717
0.88 1.02 1.18 1.35 1.55
1430 1504 1581 1658 1736
0.93 1.08 1.24 1.42 1.62
1479 1550 1624 1699 1775
1.04 1.19 1.36 1.55 1.75
1528 1596 1667 1740 1814
1.15 1.31 1.49 1.68 1.89
1576 1642 1710 1780 1852
1.26 1.43 1.61 1.81 2.03
3800 4000 4200 4400 4600
2426 2554 2682 2810 2937
1704 1790 1875 1961 2047
1.41 1.64 1.88 2.14 2.43
1723 1807 1893 1978 2063
1.48 1.71 1.95 2.22 2.52
1741 1826 1910 1994 2079
1.55 1.78 2.03 2.30 2.60
1760 1843 1927 2011 2095
1.62 1.85 2.11 2.38 2.68
1779 1861 1943 2027 2110
1.69 1.93 2.18 2.46 2.77
1797 1879 1960 2043 2125
1.77 2.00 2.26 2.55 2.85
1816 1896 1977 2059 2141
1.84 2.08 2.34 2.63 2.94
1853 1931 2011 2091 2171
1.98 2.23 2.50 2.79 3.11
1890 1966 2044 2123 2202
2.13 2.38 2.66 2.96 3.28
1926 2001 2077 2154 2232
2.27 2.53 2.82 3.12 3.46
4800 5200 5600 6000 6400
3065 3320 3576 3831 4087
2134 2306 2480 2653 2827
2.75 3.46 4.29 5.24 6.33
2149 2321 2493 2666 2838
2.84 3.56 4.39 5.35 6.45
2164 2335 2506 2678 2850
2.92 3.65 4.49 5.46 6.56
2179 2349 2519 2690 2862
3.01 3.74 4.59 5.57 6.68
2194 2363 2532 2702 2873
3.10 3.84 4.70 5.68 6.80
2209 2376 2545 2714 2884
3.18 3.94 4.80 5.79 6.91
2223 2390 2558 2726 2895
3.27 4.03 4.90 5.90 7.03
2253 2417 2582 2749 2918
3.45 4.22 5.10 6.12 7.27
2282 2444 2608 2773 2939
3.63 4.41 5.32 6.34 7.49
2311 2471 2632 2796 2961
3.81 4.61 5.52 6.56 7.73
6800 7200
4342 4598
3001 3175
7.56 8.95
3012 3185
7.68 9.07
3023 3195
7.81 9.21
3034 3206
7.94 9.34
3044 3216
8.06 9.47
3055
8.18
3066
8.30
3086
8.55
3107
8.80
3127
9.04
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1400 1600 1800 2000 2200
894 1022 1149 1277 1405
1327 1356 1388 1425 1465
0.61 0.68 0.76 0.85 0.95
1423 1454 1488 1526
0.77 0.86 0.95 1.06
1488 1517 1549 1586
0.86 0.96 1.06 1.17
1637 1666 1698
1.16 1.27 1.39
1747 1775 1805
1.37 1.49 1.63
1877 1906
1.73 1.87
2003
2.12
2094
2.39
2400 2600 2800 3000 3200
1533 1660 1788 1916 2043
1512 1565 1624 1687 1752
1.07 1.21 1.36 1.54 1.74
1568 1617 1672 1732 1795
1.18 1.31 1.47 1.66 1.86
1625 1670 1720 1776 1837
1.29 1.43 1.59 1.77 1.98
1735 1774 1817 1866 1920
1.53 1.67 1.84 2.02 2.23
1838 1875 1914 1956 2005
1.77 1.93 2.10 2.29 2.50
1937 1971 2007 2047 2089
2.03 2.19 2.38 2.57 2.79
2031 2062 2097 2134 2174
2.29 2.47 2.66 2.87 3.09
2121 2151 2184 2219 2257
3400 3600 3800 4000 4200
2171 2299 2426 2554 2682
1820 1890 1962 2036 2110
1.94 2.17 2.42 2.69 2.97
1860 1928 1998 2070 2143
2.08 2.31 2.56 2.84 3.14
1900 1966 2034 2104 2175
2.21 2.45 2.71 2.99 3.30
1979 2041 2105 2172 2241
2.47 2.73 3.01 3.31 3.63
2058 2115 2176 2240 2305
2.74 3.00 3.30 3.61 3.95
2137 2190 2246 2306 2369
3.02 3.29 3.59 3.92 4.27
2217 2264 2317 2373 2432
3.33 3.60 3.90 4.23 4.59
4400 4600 4800 5200 5600
2810 2937 3065 3320 3576
2186 2262 2340 2497 2657
3.29 3.63 3.99 4.80 5.73
2217 2293 2369 2524 2682
3.46 3.80 4.17 5.00 5.94
2248 2323 2398 2551 2707
3.63 3.98 4.36 5.19 6.15
2310 2382 2455 2604 2756
3.97 4.33 4.72 5.59 6.57
2372 2441 2512 2656 2805
4.31 4.69 5.09 5.99 6.99
2433 2500 2568 2709 2854
4.65 5.05 5.47 6.39 7.42
2494 2558 2624 2761 2902
6000 6400 6800
3831 4087 4342
2819 2983 3148
6.78 7.97 9.29
2842 3004 3168
7.00 8.20 9.55
2866 3026 3188
7.23 8.44 9.79
2912 3069
7.68 8.91
2957 3113
8.12 9.40
3003 3155
8.58 9.87
3049 3198
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
8-1/2"SP
9"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
2.56 2.75 2.95 3.17 3.40
2207 2236 2267 2300 2337
2.83 3.03 3.25 3.47 3.72
2291 2318 2349 2379 2414
3.12 3.33 3.56 3.79 4.05
2296 2340 2387 2440 2496
3.65 3.92 4.22 4.55 4.92
2374 2415 2459 2507 2559
3.98 4.26 4.56 4.89 5.26
2451 2489 2530 2575 2623
4.32 4.60 4.91 5.25 5.62
4.98 5.40 5.84 6.79 7.85
2555 2616 2680 2812 2950
5.32 5.74 6.20 7.19 8.28
2615 2674 2736 2864 2999
5.66 6.10 6.56 7.59 8.71
2676 2732 2791 2916 3047
6.02 6.46 6.93 7.98 9.15
9.04 10.36
3093
9.49
3138
9.95
3183
10.42
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2600 2800 3000 3200 3400
1660 1788 1916 2043 2171
2397 2426 2456 2490 2524
3.63 3.87 4.11 4.38 4.66
2475 2501 2531 2562 2596
3.94 4.18 4.44 4.72 5.01
2575 2604 2633 2666
4.50 4.78 5.06 5.36
2648 2674 2704 2735
4.84 5.11 5.41 5.73
2743 2772 2801
5.46 5.77 6.09
2810 2837 2867
5.81 6.12 6.46
2876 2904 2931
6.17 6.50 6.84
2965 2993
6.86 7.22
3029 3055
7.25 7.61
3088 3115
7.63 8.00
3600 3800 4000 4200 4400
2299 2427 2554 2682 2810
2561 2600 2643 2688 2737
4.96 5.28 5.62 5.99 6.39
2632 2670 2709 2752 2798
5.32 5.65 5.99 6.37 6.77
2702 2737 2775 2816 2859
5.69 6.02 6.38 6.76 7.17
2768 2803 2840 2879 2921
6.05 6.40 6.77 7.16 7.58
2833 2868 2905 2943 2982
6.43 6.79 7.18 7.58 7.99
2899 2931 2966 3003 3041
6.82 7.18 7.57 7.98 8.41
2961 2993 3027 3064 3101
7.20 7.58 7.98 8.41 8.85
3024 3055 3087 3122 3159
7.60 7.99 8.39 8.83 9.28
3084 3114 3146 3180 3216
7.99 8.39 8.81 9.25 9.72
3144 3174 3204
8.40 8.81 9.24
2906 2957 3068 3189
7.61 8.09 9.17 10.41
2965 3013 3119
8.02 8.50 9.58
3024 3070 3170
8.44 8.93 10.01
3082 3125
8.87 9.36
3140 3181
9.31 9.80
3197
9.76
4600 2937 2790 6.83 2848 7.21 4800 3065 2846 7.31 2902 7.69 5200 3320 2967 8.37 3017 8.77 5600 3576 3094 9.57 3142 9.99 The BHP shown does not include belt drive losses.
The performance shown is for fan with outlet duct.
11
Performance Data
Wheel Diameter = 18.25 in. Outlet Area = 1.91 sq. ft. inside Maximum BHP = .546 x (RPM/1000)3 Tip Speed, fpm = 4.78 x RPM
Size
1825
SISW
Class I Class II
RPM 2190 RPM 2854
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1000 1200 1400 1600 1800
523 628 733 837 942
471 510 555 605 657
0.05 0.07 0.09 0.12 0.15
542 573 610 653 701
0.08 0.10 0.12 0.15 0.19
605 632 664 701 743
0.10 0.12 0.15 0.18 0.22
687 716 748 786
0.15 0.18 0.22 0.26
739 764 795 828
0.18 0.21 0.25 0.30
788 810 838 870
0.22 0.25 0.29 0.34
855 880 910
0.29 0.33 0.38
959 986
0.41 0.46
1034 1057
0.50 0.55
1124
0.65
2000 2200 2400 2600 2800
1046 1151 1256 1360 1465
712 769 827 886 945
0.19 0.23 0.29 0.35 0.42
751 804 859 915 972
0.23 0.28 0.33 0.40 0.47
790 839 891 944 999
0.27 0.32 0.38 0.45 0.52
828 874 923 974 1027
0.31 0.36 0.43 0.50 0.58
867 909 956 1004 1055
0.35 0.41 0.47 0.55 0.63
905 944 987 1034 1082
0.39 0.45 0.52 0.60 0.69
942 979 1019 1063 1110
0.43 0.50 0.57 0.65 0.74
1015 1047 1083 1122 1165
0.52 0.59 0.67 0.76 0.85
1083 1113 1145 1181 1219
0.61 0.69 0.77 0.87 0.97
1148 1176 1206 1238 1274
0.71 0.79 0.88 0.98 1.09
3000 3200 3400 3600 3800
1570 1674 1779 1884 1988
1005 1066 1127 1189 1250
0.50 0.60 0.70 0.82 0.95
1030 1089 1149 1209 1269
0.56 0.65 0.76 0.88 1.01
1056 1113 1171 1229 1289
0.61 0.71 0.82 0.94 1.08
1081 1137 1193 1250 1308
0.67 0.77 0.88 1.01 1.14
1107 1161 1216 1272 1328
0.72 0.83 0.94 1.07 1.21
1133 1185 1238 1293 1349
0.78 0.89 1.01 1.14 1.28
1159 1209 1261 1314 1369
0.84 0.95 1.07 1.21 1.35
1210 1257 1306 1357 1409
0.96 1.08 1.21 1.35 1.50
1261 1306 1352 1400 1450
1.08 1.21 1.34 1.49 1.65
1312 1353 1397 1443 1491
1.20 1.34 1.48 1.63 1.80
4000 4400 4800 5200 5600
2093 2302 2511 2721 2930
1312 1437 1562 1687 1812
1.09 1.43 1.82 2.29 2.83
1330 1453 1576 1701 1825
1.16 1.50 1.90 2.37 2.92
1349 1469 1591 1714 1838
1.23 1.57 1.98 2.45 3.01
1367 1486 1606 1728 1851
1.29 1.64 2.06 2.54 3.10
1386 1503 1622 1742 1864
1.37 1.72 2.14 2.63 3.19
1405 1520 1637 1756 1877
1.44 1.80 2.22 2.71 3.28
1424 1537 1653 1770 1890
1.51 1.88 2.30 2.80 3.38
1462 1572 1684 1799 1916
1.66 2.04 2.48 2.99 3.57
1501 1607 1716 1828 1943
1.82 2.20 2.65 3.17 3.77
1540 1642 1748 1857 1970
1.98 2.37 2.84 3.37 3.97
6000 6400 6800 7200 7600
3139 3349 3558 3767 3977
1938 2064 2190 2317 2443
3.45 4.16 4.96 5.86 6.87
1950 2076 2201 2327 2453
3.55 4.26 5.07 5.98 6.99
1962 2087 2212 2337 2463
3.64 4.36 5.18 6.09 7.11
1974 2098 2223 2347 2472
3.74 4.47 5.29 6.21 7.23
1986 2109 2233 2357 2482
3.84 4.57 5.39 6.32 7.35
1998 2120 2243 2367 2491
3.93 4.67 5.50 6.43 7.47
2010 2132 2254 2377 2500
4.03 4.78 5.62 6.55 7.59
2034 2154 2275 2396 2519
4.24 4.99 5.84 6.79 7.84
2059 2177 2296 2416 2537
4.44 5.21 6.07 7.02 8.09
2084 2200 2318 2437 2556
4.66 5.43 6.30 7.27 8.34
8000 8400 8800
4186 4395 4604
2570 2697 2824
7.98 9.22 10.57
2579 2705 2832
8.11 9.35 10.71
2588 2714 2840
8.24 9.48 10.84
2597 2723 2848
8.36 9.61 10.98
2607 2732 2857
8.49 9.75 11.13
2615 2740 2865
8.62 9.88 11.27
2624 2749 2873
8.74 10.01 11.41
2642 2765 2889
9.00 10.28 11.68
2659 2782 2905
9.26 10.55 11.96
2677 2799 2921
9.52 10.83 12.25
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2200 2400 2600
942 1046 1151 1256 1360
1190 1210 1235 1264 1295
0.75 0.82 0.90 0.99 1.09
1270 1293 1320 1348
0.93 1.01 1.10 1.21
1349 1373 1400
1.13 1.22 1.33
1456 1476 1500
1.38 1.48 1.59
1574 1595
1.75 1.87
1685
2.15
2800 3000 3200 3400 3600
1465 1570 1674 1779 1884
1327 1362 1401 1442 1485
1.20 1.33 1.47 1.62 1.78
1379 1413 1448 1487 1528
1.33 1.46 1.60 1.75 1.92
1430 1462 1495 1531 1570
1.45 1.59 1.74 1.90 2.07
1527 1556 1587 1619 1654
1.72 1.86 2.01 2.18 2.37
1618 1646 1674 1705 1737
2.00 2.14 2.30 2.48 2.68
1707 1730 1758 1786 1816
3800 4000 4400 4800 5200
1988 2093 2302 2511 2721
1531 1578 1677 1780 1887
1.95 2.13 2.55 3.02 3.56
1571 1617 1712 1812 1916
2.10 2.29 2.72 3.21 3.76
1611 1655 1747 1844 1946
2.25 2.45 2.90 3.40 3.96
1691 1731 1816 1908 2005
2.57 2.78 3.25 3.78 4.37
1771 1806 1885 1972 2064
2.89 3.11 3.60 4.16 4.78
5600 6000 6400 6800 7200
2930 3139 3349 3558 3767
1997 2109 2224 2339 2457
4.18 4.87 5.66 6.54 7.51
2024 2134 2247 2361 2477
4.39 5.10 5.89 6.78 7.77
2051 2160 2271 2383 2498
4.60 5.32 6.13 7.02 8.02
2106 2210 2318 2428 2540
5.03 5.78 6.61 7.52 8.54
2161 2261 2366 2472 2581
7600 8000 8400
3977 4186 4395
2576 2695 2815
8.60 9.79 11.10
2595 2713 2833
8.86 10.07 11.38
2614 2731 2850
9.12 10.34 11.67
2653 2768
9.66 10.90
2692 2805
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2.29 2.44 2.61 2.79 2.99
1791 1813 1837 1865 1893
2.60 2.76 2.93 3.12 3.32
1893 1915 1940 1968
3.09 3.26 3.46 3.67
1971 1990 2013 2039
3.43 3.61 3.81 4.03
2063 2085 2108
3.97 4.17 4.40
1848 1881 1954 2035 2123
3.21 3.45 3.96 4.55 5.20
1923 1955 2022 2098 2181
3.55 3.79 4.33 4.94 5.61
1996 2026 2090 2161 2239
3.90 4.14 4.70 5.33 6.04
2066 2095 2156 2223 2297
4.26 4.51 5.08 5.73 6.46
2134 2162 2221 2285 2355
4.63 4.89 5.47 6.14 6.89
5.47 6.24 7.10 8.03 9.07
2215 2312 2413 2517 2623
5.92 6.71 7.59 8.56 9.61
2270 2363 2461 2562 2665
6.36 7.18 8.09 9.08 10.17
2324 2414 2508 2606 2708
6.81 7.66 8.59 9.61 10.72
2378 2465 2556 2651 2750
7.26 8.13 9.10 10.14 11.28
2432 2515 2604 2696 2792
7.71 8.62 9.61 10.68 11.85
10.22 11.47
2732 2842
10.78 12.05
2771
11.35
2812
11.94
2851
12.52
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
3400 3600 3800 4000 4400
1779 1884 1988 2093 2302
2155 2176 2200 2226 2284
4.55 4.77 5.02 5.28 5.87
2223 2242 2265 2290 2345
4.93 5.16 5.41 5.68 6.28
2308 2329 2353 2406
5.56 5.82 6.10 6.71
2373 2391 2413 2463
5.98 6.24 6.52 7.14
2452 2473 2520
6.66 6.95 7.58
2533 2578
7.40 8.04
2590 2632
7.84 8.49
2687
8.97
4800 5200 5600 6000 6400
2511 2721 2930 3139 3349
2345 2412 2485 2565 2650
6.55 7.32 8.17 9.10 10.11
2405 2469 2539 2615 2697
6.98 7.76 8.64 9.58 10.62
2463 2525 2592 2665 2745
7.41 8.21 9.10 10.08 11.15
2520 2581 2645 2715 2791
7.85 8.66 9.57 10.58 11.66
2575 2634 2697 2765 2838
8.30 9.12 10.05 11.07 12.18
2630 2687 2748 2814
8.77 9.59 10.53 11.57
2683 2740 2799
9.24 10.08 11.02
2735 2790 2849
9.72 10.57 11.53
6800 7200
3558 3767
2740 2834
11.21 12.41
2785
11.75
2829
12.30
The BHP shown does not include belt drive losses.
12
6"SP
RPM
11"SP
BHP
RPM
BHP
2741
9.44
2795
9.94
2787 2841
10.21 11.07
2838
10.71
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 20.00 in. Outlet Area = 2.29 sq. ft. inside Maximum BHP = .863 x (RPM/1000)3 Tip Speed, fpm = 5.24 x RPM Class I Class II
Size
2000
RPM 1996 RPM 2600
SISW
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1600 1800 2000 2200 2400
697 784 871 958 1046
492 529 567 608 650
0.10 0.13 0.15 0.19 0.23
544 576 610 646 685
0.13 0.16 0.19 0.23 0.27
596 622 652 685 720
0.17 0.20 0.24 0.28 0.32
644 667 694 723 756
0.21 0.24 0.28 0.32 0.37
689 711 735 761 790
0.24 0.28 0.32 0.37 0.42
732 752 774 798 825
0.29 0.32 0.36 0.41 0.47
773 791 812 835 860
0.33 0.37 0.41 0.46 0.52
865 883 903 926
0.46 0.51 0.56 0.62
949 968 988
0.62 0.67 0.74
1029 1047
0.79 0.86
2600 2800 3000 3200 3400
1133 1220 1307 1394 1481
693 736 781 826 871
0.27 0.32 0.38 0.45 0.52
725 766 809 851 895
0.32 0.37 0.44 0.50 0.58
758 796 837 878 920
0.37 0.43 0.49 0.56 0.64
790 827 865 904 945
0.42 0.48 0.55 0.63 0.71
823 857 893 931 970
0.48 0.54 0.61 0.69 0.77
855 887 921 957 995
0.53 0.60 0.67 0.75 0.84
887 917 949 984 1020
0.58 0.65 0.73 0.82 0.91
950 976 1005 1036 1069
0.69 0.77 0.85 0.95 1.05
1011 1035 1060 1088 1118
0.81 0.89 0.98 1.08 1.18
1068 1091 1115 1140 1167
0.93 1.02 1.11 1.21 1.32
3600 3800 4000 4400 4800
1568 1656 1743 1917 2091
917 963 1009 1102 1196
0.60 0.70 0.80 1.03 1.31
939 984 1029 1121 1213
0.67 0.76 0.87 1.10 1.39
963 1006 1050 1139 1230
0.73 0.83 0.94 1.18 1.47
986 1028 1071 1158 1247
0.80 0.90 1.01 1.26 1.55
1009 1050 1092 1177 1264
0.87 0.97 1.08 1.34 1.64
1033 1073 1113 1196 1281
0.94 1.04 1.16 1.42 1.72
1057 1095 1134 1215 1299
1.01 1.12 1.24 1.50 1.81
1104 1139 1177 1253 1334
1.15 1.27 1.39 1.67 1.99
1150 1184 1219 1292 1369
1.30 1.42 1.55 1.85 2.18
1197 1228 1261 1331 1404
1.45 1.57 1.71 2.02 2.37
5200 5600 6000 6400 6800
2265 2440 2614 2788 2963
1291 1386 1481 1576 1672
1.64 2.02 2.45 2.95 3.51
1306 1400 1494 1589 1683
1.72 2.11 2.55 3.05 3.62
1321 1414 1507 1601 1695
1.81 2.20 2.64 3.15 3.72
1337 1428 1520 1613 1706
1.90 2.29 2.74 3.26 3.83
1353 1443 1534 1625 1718
1.98 2.39 2.84 3.36 3.95
1368 1457 1547 1638 1729
2.08 2.48 2.95 3.47 4.06
1384 1472 1561 1651 1741
2.17 2.58 3.05 3.58 4.17
1416 1501 1588 1676 1765
2.36 2.79 3.26 3.80 4.41
1449 1531 1616 1702 1789
2.56 2.99 3.48 4.03 4.65
1481 1561 1644 1728 1813
2.76 3.21 3.71 4.27 4.89
7200 7600 8000 8500 9000
3137 3311 3485 3703 3921
1767 1863 1959 2079 2199
4.13 4.83 5.61 6.70 7.92
1778 1874 1969 2088 2208
4.25 4.96 5.74 6.83 8.06
1789 1884 1979 2098 2217
4.36 5.08 5.87 6.97 8.20
1800 1894 1989 2107 2226
4.48 5.20 5.99 7.10 8.35
1811 1904 1998 2116 2234
4.60 5.32 6.12 7.24 8.49
1822 1915 2008 2125 2243
4.71 5.45 6.25 7.37 8.63
1833 1925 2018 2134 2251
4.83 5.57 6.38 7.51 8.77
1855 1946 2037 2153 2269
5.08 5.82 6.64 7.79 9.07
1878 1967 2057 2171 2286
5.33 6.08 6.92 8.07 9.36
1900 1989 2078 2190 2304
5.58 6.35 7.19 8.36 9.66
9500 10000 10500
4139 4357 4575
2319 2440 2560
9.28 10.79 12.45
2328 2448 2568
9.42 10.94 12.62
2336 2456 2575
9.58 11.10 12.78
2345 2464 2583
9.73 11.26 12.95
2353 2472 2590
9.88 11.42 13.12
2361 2480 2598
10.03 11.58 13.29
2369 2487
10.18 11.74
2385 2502
10.48 12.05
2402 2518
10.80 12.38
2418 2533
11.11 12.70
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2400 2600 2800 3000 3200
1046 1133 1220 1307 1394
1104 1123 1144 1167 1190
0.98 1.06 1.15 1.24 1.35
1159 1176 1195 1217 1239
1.12 1.19 1.28 1.38 1.49
1227 1245 1265 1287
1.34 1.43 1.53 1.64
1340 1357 1377
1.73 1.84 1.96
1445 1461
2.17 2.29
1544
2.64
3400 3600 3800 4000 4400
1481 1568 1656 1743 1917
1216 1243 1272 1303 1369
1.47 1.60 1.73 1.88 2.20
1263 1289 1315 1344 1407
1.61 1.75 1.89 2.04 2.38
1309 1333 1359 1386 1445
1.77 1.90 2.05 2.21 2.55
1397 1420 1443 1468 1520
2.08 2.23 2.38 2.55 2.92
1481 1502 1523 1546 1594
2.42 2.57 2.73 2.90 3.29
1560 1579 1599 1621 1667
4800 5200 5600 6000 6400
2091 2265 2440 2614 2788
1439 1514 1591 1671 1754
2.56 2.97 3.42 3.93 4.51
1474 1546 1622 1700 1780
2.75 3.17 3.64 4.17 4.75
1509 1579 1652 1728 1806
2.94 3.38 3.87 4.41 5.00
1579 1643 1712 1784 1859
3.33 3.80 4.31 4.88 5.50
1648 1707 1771 1840 1911
3.73 4.22 4.76 5.35 6.00
6800 7200 7600 8000 8500
2963 3137 3311 3485 3703
1838 1923 2010 2098 2209
5.14 5.84 6.62 7.47 8.65
1862 1946 2032 2118 2228
5.40 6.11 6.90 7.76 8.95
1887 1969 2053 2139 2247
5.65 6.38 7.17 8.05 9.25
1936 2016 2097 2180 2286
6.18 6.93 7.74 8.64 9.87
1986 2062 2141 2222 2325
9000 9500 10000
3921 4139 4357
2321 2435 2549
9.97 11.43 13.03
2339 2451 2565
10.28 11.75 13.37
2357 2468 2581
10.60 12.07 13.71
2393 2502
11.23 12.75
2430 2537
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2.78 2.93 3.10 3.27 3.68
1638 1654 1672 1692 1736
3.15 3.31 3.48 3.66 4.07
1727 1743 1762 1803
3.70 3.88 4.07 4.49
1798 1812 1829 1868
4.11 4.29 4.49 4.92
1880 1895 1931
4.72 4.92 5.36
1716 1771 1831 1895 1964
4.13 4.65 5.21 5.83 6.51
1783 1834 1890 1951 2016
4.55 5.08 5.67 6.32 7.02
1848 1897 1949 2006 2067
4.97 5.53 6.14 6.81 7.53
1911 1958 2007 2061 2119
5.41 5.98 6.61 7.30 8.05
1972 2017 2064 2115 2171
5.87 6.44 7.09 7.80 8.58
6.71 7.49 8.33 9.24 10.50
2035 2109 2186 2263 2364
7.25 8.05 8.92 9.86 11.14
2084 2155 2229 2305 2403
7.78 8.62 9.52 10.48 11.80
2133 2202 2273 2347 2442
8.33 9.18 10.11 11.11 12.46
2182 2248 2317 2389 2481
8.87 9.76 10.71 11.73 13.12
2230 2294 2361 2430 2521
9.42 10.34 11.31 12.36 13.78
11.89 13.43
2466 2571
12.57 14.12
2503
13.24
2540
13.93
2577
14.63
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4000 4400 4800 5200 5600
1743 1917 2091 2265 2440
1959 1992 2031 2075 2121
5.37 5.82 6.34 6.92 7.58
2053 2089 2131 2176
6.30 6.82 7.41 8.09
2112 2146 2185 2229
6.78 7.32 7.92 8.60
2169 2201 2240 2281
7.27 7.82 8.44 9.12
2256 2292 2333
8.34 8.97 9.67
2311 2343 2382
8.88 9.51 10.22
2363 2395 2432
9.41 10.06 10.78
2445 2480
10.62 11.36
2495 2528
11.20 11.93
2543 2576
11.77 12.53
6000 6400 6800 7200 7600
2614 2788 2963 3137 3311
2169 2222 2279 2340 2404
8.31 9.11 9.98 10.92 11.92
2222 2273 2327 2385 2448
8.82 9.65 10.54 11.50 12.53
2275 2324 2375 2431 2491
9.35 10.19 11.10 12.09 13.14
2326 2373 2423 2477 2534
9.89 10.74 11.67 12.69 13.76
2376 2422 2471 2522 2577
10.44 11.30 12.25 13.28 14.38
2425 2470 2517 2567
11.00 11.87 12.83 13.88
2473 2516 2563
11.58 12.45 13.43
2520 2564
12.15 13.06
2567
12.76
8000 8500
3485 3703
2472 2560
13.00 14.46
2513 2598
13.63 15.12
2554
14.27
2595
14.92
The BHP shown does not include belt drive losses.
The performance shown is for fan with outlet duct.
13
Performance Data
Wheel Diameter = 22.25 in. Outlet Area = 2.85 sq. ft. inside Maximum BHP = 1.48 x (RPM/1000)3 Tip Speed, fpm = 5.83 x RPM
Size
2225
SISW
Class I Class II
RPM 1802 RPM 2347
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1800 2000 2400 2600 2800
634 704 845 915 986
420 445 499 528 558
0.11 0.13 0.18 0.21 0.25
472 492 539 564 592
0.15 0.17 0.23 0.26 0.30
520 537 577 601 625
0.19 0.21 0.28 0.32 0.36
565 580 616 636 659
0.23 0.26 0.33 0.37 0.41
607 621 654 672 692
0.28 0.31 0.38 0.42 0.47
647 659 689 706 725
0.33 0.36 0.43 0.48 0.53
696 724 740 757
0.41 0.49 0.54 0.59
788 802 818
0.61 0.66 0.72
849 861 876
0.75 0.80 0.86
918 930
0.94 1.00
3000 3200 3400 3600 3800
1056 1126 1197 1267 1338
589 620 651 683 716
0.29 0.33 0.38 0.44 0.50
620 649 679 709 740
0.34 0.39 0.45 0.50 0.57
651 679 707 735 765
0.40 0.46 0.51 0.57 0.64
683 708 734 762 790
0.46 0.52 0.58 0.64 0.71
714 737 762 788 815
0.53 0.58 0.65 0.72 0.79
745 766 790 814 839
0.59 0.65 0.72 0.79 0.87
776 795 817 840 864
0.65 0.72 0.78 0.86 0.94
835 853 871 891 913
0.78 0.85 0.93 1.01 1.10
891 907 924 942 962
0.92 0.99 1.07 1.16 1.25
944 959 975 992 1010
1.07 1.15 1.23 1.32 1.42
4000 4200 4600 4800 5000
1408 1478 1619 1690 1760
749 782 848 882 915
0.57 0.64 0.81 0.91 1.01
772 803 868 901 933
0.64 0.72 0.89 0.99 1.10
795 826 888 920 952
0.71 0.79 0.97 1.08 1.19
819 848 908 939 970
0.79 0.87 1.06 1.16 1.28
842 870 929 959 989
0.87 0.95 1.15 1.25 1.37
866 893 949 978 1008
0.95 1.04 1.24 1.35 1.46
889 915 970 998 1026
1.03 1.12 1.33 1.44 1.56
936 960 1011 1037 1064
1.19 1.29 1.51 1.63 1.76
982 1004 1051 1076 1102
1.35 1.46 1.69 1.82 1.96
1028 1048 1092 1115 1139
1.52 1.64 1.88 2.02 2.16
5500 6000 6500 7000 7500
1936 2112 2288 2464 2640
1000 1086 1171 1258 1344
1.31 1.67 2.08 2.57 3.12
1016 1100 1185 1270 1356
1.40 1.77 2.19 2.68 3.24
1033 1115 1198 1283 1367
1.50 1.86 2.29 2.79 3.36
1049 1130 1212 1295 1379
1.59 1.97 2.41 2.91 3.48
1066 1146 1226 1308 1391
1.69 2.08 2.52 3.03 3.61
1083 1161 1240 1321 1403
1.80 2.18 2.63 3.15 3.74
1100 1176 1254 1334 1415
1.90 2.29 2.75 3.27 3.87
1134 1208 1283 1360 1439
2.11 2.52 2.99 3.53 4.13
1169 1239 1312 1387 1464
2.33 2.75 3.24 3.79 4.41
1203 1270 1341 1414 1489
2.55 2.99 3.49 4.05 4.69
8000 8500 9000 9500 10000
2816 2992 3168 3344 3520
1430 1517 1604 1691 1778
3.75 4.47 5.27 6.16 7.15
1441 1528 1614 1700 1787
3.88 4.60 5.41 6.31 7.31
1452 1538 1624 1710 1796
4.01 4.74 5.55 6.46 7.47
1463 1548 1633 1719 1805
4.14 4.87 5.70 6.61 7.63
1474 1558 1643 1728 1813
4.27 5.01 5.84 6.76 7.79
1485 1569 1653 1737 1822
4.40 5.15 5.99 6.92 7.95
1497 1579 1662 1746 1830
4.54 5.30 6.14 7.08 8.11
1519 1600 1682 1765 1848
4.82 5.59 6.45 7.39 8.44
1542 1622 1702 1784 1866
5.11 5.89 6.75 7.72 8.78
1565 1643 1722 1803 1884
5.40 6.19 7.08 8.05 9.12
10500 11000 12000 13000
3696 3872 4224 4576
1865 1952 2127 2302
8.24 9.44 12.19 15.43
1874 1960 2134 2309
8.41 9.62 12.38 15.63
1882 1969 2142 2316
8.58 9.79 12.57 15.83
1891 1977 2149 2322
8.75 9.97 12.76 16.04
1899 1985 2157 2329
8.91 10.14 12.95 16.25
1907 1992 2164 2336
9.08 10.32 13.14 16.46
1915 2000 2171 2343
9.25 10.49 13.33 16.67
1932 2016 2185
9.59 10.85 13.71
1948 2032 2200
9.94 11.21 14.11
1965 2048 2214
10.30 11.58 14.50
Volume O.Vel
2"SP
2-1/4"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2800 3200 3400 3600 3800
986 1126 1197 1267 1338
982 1008 1023 1039 1056
1.16 1.31 1.39 1.48 1.58
1056 1070 1085 1101
1.47 1.56 1.66 1.76
1102 1114 1129 1144
1.64 1.74 1.84 1.94
1201 1213 1226
2.11 2.21 2.32
1292 1304
2.61 2.73
1379
3.16
4000 4200 4500 4800 5000
1408 1478 1584 1690 1760
1074 1092 1122 1154 1176
1.69 1.81 2.00 2.21 2.36
1117 1135 1163 1192 1214
1.87 1.99 2.19 2.41 2.57
1160 1176 1203 1231 1250
2.06 2.18 2.39 2.61 2.77
1240 1255 1280 1305 1323
2.44 2.57 2.79 3.03 3.20
1316 1330 1353 1377 1394
2.86 2.99 3.21 3.46 3.64
1390 1402 1422 1445 1461
5200 5500 6000 6500 7000
1830 1936 2112 2288 2464
1200 1237 1302 1370 1440
2.52 2.77 3.23 3.74 4.32
1236 1271 1333 1399 1467
2.73 2.99 3.46 4.00 4.60
1271 1305 1364 1428 1494
2.94 3.21 3.70 4.26 4.87
1342 1372 1426 1485 1548
3.38 3.67 4.19 4.78 5.43
1411 1438 1487 1542 1601
3.83 4.13 4.69 5.31 5.99
7500 8000 8500 9000 9500
2640 2816 2992 3168 3344
1513 1588 1665 1743 1822
4.97 5.70 6.51 7.40 8.39
1538 1612 1687 1763 1841
5.26 6.00 6.82 7.73 8.73
1564 1635 1709 1784 1860
5.56 6.31 7.14 8.06 9.08
1613 1682 1752 1825 1899
6.15 6.93 7.80 8.75 9.79
1663 1729 1796 1866 1938
10500 11000 11500 12000
3696 3872 4048 4224
1982 2064 2146 2229
10.66 11.96 13.37 14.90
2000 2080 2161 2243
11.03 12.34 13.76 15.31
2017 2097 2177 2258
11.40 12.73 14.16 15.71
2052 2129 2208 2288
12.17 13.51 14.97 16.56
2087 2163 2240 2318
Volume O.Vel
6-1/2"SP
7"SP
7-1/2"SP
8"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3.29 3.43 3.66 3.92 4.10
1472 1489 1511 1525
3.90 4.13 4.40 4.58
1554 1573 1587
4.62 4.89 5.08
1618 1635 1647
5.13 5.41 5.60
1695 1706
5.94 6.14
1477 1503 1549 1598 1654
4.29 4.61 5.19 5.84 6.55
1541 1565 1608 1655 1706
4.78 5.10 5.70 6.38 7.13
1602 1625 1666 1711 1759
5.29 5.62 6.23 6.93 7.71
1661 1683 1723 1765 1811
5.81 6.15 6.78 7.49 8.30
1719 1739 1777 1818 1862
6.36 6.70 7.34 8.07 8.89
6.74 7.56 8.46 9.44 10.52
1713 1775 1840 1908 1978
7.34 8.20 9.13 10.15 11.25
1762 1821 1884 1949 2017
7.94 8.83 9.80 10.85 11.99
1811 1868 1928 1990 2056
8.55 9.48 10.48 11.57 12.74
1860 1914 1971 2032 2095
9.17 10.13 11.16 12.28 13.49
1909 1959 2015 2073 2134
9.79 10.78 11.85 13.01 14.25
12.94 14.32 15.81 17.41
2122 2196 2272
13.73 15.14 16.65
2157 2230 2304
14.54 15.97 17.51
2193 2263 2336
15.37 16.81 18.39
2228 2297
16.18 17.68
2263 2330
17.00 18.53
8-1/2"SP
9"SP
9-1/2"SP
10"SP
10-1/2"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5500 6000 6500 7000 7500
1936 2112 2288 2464 2640
1795 1830 1870 1912 1957
7.28 7.93 8.66 9.50 10.43
1849 1883 1920 1961 2004
7.87 8.53 9.28 10.12 11.07
1901 1933 1970 2009 2052
8.46 9.14 9.91 10.76 11.73
1953 1982 2018 2056 2097
9.07 9.77 10.55 11.42 12.39
2032 2064 2102 2141
10.41 11.20 12.09 13.07
2080 2111 2146 2186
11.07 11.88 12.77 13.78
2127 2156 2191 2228
11.74 12.56 13.48 14.48
2175 2201 2234 2271
12.43 13.26 14.18 15.21
2246 2277 2312
13.97 14.91 15.94
2290 2319
14.69 15.64
8000 8500 9000 9500 10000
2816 2992 3168 3344 3520
2005 2058 2113 2172 2234
11.45 12.54 13.72 15.00 16.37
2051 2100 2154 2211 2271
12.11 13.24 14.45 15.75 17.15
2096 2143 2195 2250 2308
12.78 13.94 15.19 16.53 17.96
2140 2186 2235 2288 2344
13.47 14.66 15.93 17.29 18.75
2184 2228 2275 2326
14.18 15.37 16.67 18.07
2226 2270 2316
14.87 16.09 17.43
2269 2311
15.60 16.84
2310
16.34
The BHP shown does not include belt drive losses. 14
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 24.50 in. Outlet Area = 3.45 sq. ft. inside Maximum BHP = 2.24 x (RPM/1000)3 Tip Speed, fpm = 6.41 x RPM Class I Class II Class III Volume O.Vel
Size
2450
RPM 1694 RPM 2208 RPM 2777 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
2500 3000 3500 4000 4500
725 870 1015 1160 1305
421 478 538 600 663
0.17 0.24 0.33 0.45 0.59
464 509 565 624 685
0.21 0.29 0.39 0.52 0.67
503 545 592 648 706
0.27 0.35 0.46 0.59 0.75
538 579 621 671 727
0.32 0.41 0.53 0.67 0.84
572 611 653 696 748
0.38 0.47 0.59 0.74 0.92
605 640 681 723 769
0.43 0.54 0.67 0.82 1.01
636 669 708 750 792
0.50 0.61 0.74 0.90 1.10
723 758 798 841
0.75 0.89 1.06 1.27
776 806 843 885
0.89 1.05 1.24 1.45
852 887 925
1.22 1.42 1.64
5000 5500 6000 6500 7000
1450 1595 1740 1885 2030
728 793 859 925 992
0.77 0.99 1.24 1.54 1.88
747 811 875 940 1006
0.86 1.08 1.35 1.65 2.00
767 828 892 955 1020
0.95 1.18 1.45 1.76 2.13
786 846 908 970 1034
1.04 1.28 1.56 1.88 2.25
805 863 924 985 1048
1.13 1.38 1.66 1.99 2.37
823 881 939 1000 1061
1.23 1.48 1.77 2.11 2.50
842 898 955 1015 1075
1.32 1.58 1.88 2.23 2.62
883 932 986 1044 1102
1.51 1.79 2.11 2.47 2.88
927 969 1018 1072 1129
1.71 2.00 2.34 2.71 3.13
967 1009 1052 1101 1156
1.91 2.22 2.57 2.96 3.40
7500 8000 8500 9000 9500
2175 2320 2465 2610 2755
1059 1126 1193 1260 1328
2.28 2.73 3.24 3.81 4.44
1072 1138 1205 1272 1339
2.41 2.86 3.38 3.96 4.60
1085 1151 1217 1283 1349
2.54 3.00 3.53 4.11 4.76
1098 1163 1228 1294 1360
2.67 3.14 3.67 4.27 4.93
1111 1175 1240 1305 1370
2.80 3.28 3.82 4.42 5.09
1124 1187 1251 1316 1380
2.93 3.42 3.97 4.58 5.25
1137 1199 1262 1326 1391
3.06 3.56 4.12 4.73 5.42
1162 1223 1285 1348 1411
3.33 3.85 4.42 5.05 5.75
1187 1247 1307 1369 1431
3.61 4.14 4.72 5.37 6.08
1212 1270 1330 1390 1451
3.89 4.43 5.03 5.69 6.43
10000 11000 12000 13000 14000
2900 3190 3480 3771 4061
1396 1531 1667 1803 1939
5.14 6.76 8.70 10.98 13.64
1406 1541 1676 1811 1947
5.31 6.95 8.90 11.20 13.88
1416 1550 1684 1819 1954
5.48 7.14 9.11 11.43 14.12
1426 1559 1693 1827 1962
5.65 7.32 9.31 11.65 14.36
1436 1568 1701 1835 1969
5.82 7.51 9.51 11.87 14.60
1445 1577 1709 1842 1976
5.99 7.70 9.72 12.09 14.83
1455 1586 1718 1850 1983
6.17 7.88 9.93 12.31 15.07
1474 1604 1734 1865 1997
6.51 8.27 10.33 12.76 15.55
1494 1621 1750 1880 2011
6.87 8.65 10.75 13.19 16.02
1513 1638 1766 1895 2025
7.22 9.04 11.16 13.65 16.49
15000 16000 16500 17000 18000
4351 4641 4786 4931 5221
2076 2212 2281 2349 2486
16.71 20.20 22.12 24.16 28.61
2083 2219 2287 2355 2492
16.96 20.47 22.40 24.44 28.91
2090 2225 2293 2361 2497
17.21 20.74 22.68 24.73 29.21
2097 2232 2300 2368 2503
17.47 21.01 22.96 25.02 29.51
2104 2239 2306 2374 2509
17.74 21.29 23.24 25.31 29.82
2111 2245 2313 2380 2515
17.98 21.57 23.53 25.61 30.13
2117 2251 2319 2386 2521
18.23 21.83 23.81 25.90 30.44
2130 2264 2331 2398 2532
18.74 22.37 24.36 26.46 31.05
2143 2276 2343 2409 2543
19.26 22.91 24.91 27.03 31.65
2156 2288 2354 2421 2554
19.76 23.47 25.48 27.61 32.25
19000 20000
5511 5801
2623 2760
33.58 39.09
2628 2765
33.89 39.42
2634 2770
34.21 39.75
2639 2775
34.52 40.09
2645
34.85
2650
35.17
2656
35.50
2667
36.16
2677
36.79
2688
37.42
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
5-1/2"SP
6"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4000 4500 5000 5500 6000
1160 1305 1450 1595 1740
928 965 1005 1047 1088
1.60 1.84 2.12 2.44 2.80
1008 1039 1076 1115 1157
1.98 2.25 2.55 2.89 3.28
1110 1143 1180 1219
2.67 3.01 3.37 3.78
1180 1207 1241 1279
3.12 3.47 3.87 4.30
1271 1301 1335
3.95 4.38 4.84
1358 1390
4.89 5.38
1415 1443
5.43 5.94
1496
6.51
1548
7.10
6500 7000 7500 8000 8500
1885 2030 2175 2320 2465
1133 1183 1237 1294 1352
3.21 3.66 4.17 4.72 5.34
1199 1242 1288 1340 1396
3.71 4.20 4.74 5.33 5.97
1261 1303 1345 1390 1440
4.24 4.75 5.31 5.94 6.62
1318 1360 1402 1444 1488
4.78 5.31 5.90 6.56 7.27
1373 1413 1455 1497 1539
5.34 5.90 6.51 7.18 7.92
1426 1464 1505 1546 1588
5.92 6.50 7.13 7.82 8.58
1477 1513 1553 1593 1635
6.51 7.11 7.77 8.49 9.27
1527 1562 1599 1639 1680
7.11 7.74 8.43 9.16 9.97
1576 1609 1645 1683 1723
9000 9500 10000 11000 12000
2610 2755 2900 3190 3480
1411 1471 1532 1655 1782
6.02 6.76 7.58 9.42 11.58
1452 1510 1569 1690 1813
6.68 7.46 8.30 10.20 12.43
1494 1550 1607 1724 1844
7.35 8.16 9.03 11.00 13.28
1536 1589 1644 1758 1876
8.04 8.88 9.77 11.81 14.15
1582 1629 1681 1792 1907
8.73 9.60 10.53 12.62 15.02
1630 1673 1720 1825 1937
9.42 10.32 11.29 13.44 15.90
1677 1719 1762 1859 1968
10.12 11.05 12.05 14.26 16.79
1722 1764 1805 1895 1999
10.84 11.79 12.82 15.10 17.69
13000 14000 15000 16000 17000
3771 4061 4351 4641 4931
1909 2039 2169 2300 2432
14.09 16.98 20.26 24.00 28.20
1939 2066 2194 2324 2454
15.01 17.94 21.31 25.08 29.33
1967 2093 2219 2347 2477
15.91 18.93 22.33 26.18 30.50
1996 2119 2244 2371 2498
16.84 19.91 23.38 27.28 31.65
2025 2146 2269 2394 2520
17.78 20.90 24.43 28.40 32.83
2053 2172 2294 2417 2542
18.71 21.90 25.50 29.51 34.01
2082 2199 2318 2440 2564
19.66 22.90 26.56 30.66 35.18
2110 2225 2343 2463 2586
18000 19000
5221 5511
2565 2698
32.86 38.06
2586 2718
34.08 39.36
2607 2738
35.29 40.61
2628 2757
36.54 41.90
2648 2777
37.74 43.21
2669
38.99
2689
40.24
2709
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
12"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6500 7000 7500 8000 8500
1885 2030 2175 2320 2465
1672 1700 1732 1768 1806
8.97 9.68 10.45 11.28 12.15
1789 1818 1850 1885
11.03 11.85 12.72 13.66
1901 1929 1962
13.29 14.20 15.19
2008 2037
15.73 16.76
2085 2111
17.31 18.37
2184
20.02
9000 9500 10000 11000 12000
2610 2755 2900 3190 3480
1845 1886 1927 2011 2097
13.09 14.10 15.19 17.62 20.41
1923 1962 2002 2086 2169
14.66 15.72 16.85 19.37 22.24
1997 2034 2073 2155 2238
16.25 17.36 18.54 21.14 24.10
2069 2105 2142 2221 2304
17.87 19.04 20.28 22.97 26.01
2140 2174 2209 2285 2366
19.52 20.75 22.05 24.84 27.96
2210 2241 2275 2348 2426
13000 14000 15000 16000
3771 4061 4351 4641
2195 2303 2416 2532
23.52 27.00 30.89 35.21
2257 2356 2464 2577
25.48 29.09 33.09 37.52
2322 2412 2513 2622
27.46 31.20 35.33 39.87
2388 2471 2564 2668
29.46 33.31 37.58 42.26
2450 2533 2619 2714
31.49 35.43 39.84 44.63
2508 2592 2675 2764
17000 18000
4931 5221
2650 2770
40.00 45.26
2693
42.44
2735
44.88
The BHP shown does not include belt drive losses.
14"SP
6-1/2"SP RPM
BHP
7.71 8.38 9.09 9.85 10.68
1624 1655 1689 1726 1765
8.33 9.03 9.76 10.56 11.41
1764 1807 1849 1933 2030
11.58 12.55 13.60 15.94 18.59
1805 1847 1889 1972 2063
12.33 13.32 14.39 16.78 19.50
20.62 23.93 27.64 31.77 36.40
2138 2251 2367 2486 2607
21.58 24.94 28.71 32.93 37.57
2167 2278 2392 2509 2628
22.56 25.99 29.81 34.05 38.78
41.47
2730
42.75
2750
44.00
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
21.22 22.50 23.85 26.75 29.96
2348 2373 2402 2468 2542
24.74 26.07 27.50 30.63 34.07
2526 2584 2652
31.31 34.63 38.26
2698 2760
38.69 42.54
2755
40.82
33.56 37.59 42.08 47.00
2620 2703
37.83 42.03
2727
42.23
The performance shown is for fan with outlet duct.
15
Performance Data
Wheel Diameter = 27.00 in. Outlet Area = 4.19 sq. ft. inside Maximum BHP = 3.64 x (RPM/1000)3 Tip Speed, fpm = 7.07 x RPM
Size
2700
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1538 RPM 2003 RPM 2520 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3000 3500 4000 4500 5000
716 836 955 1075 1194
379 421 465 511 558
0.20 0.26 0.35 0.45 0.58
418 451 491 534 579
0.25 0.33 0.42 0.54 0.67
454 485 518 557 600
0.32 0.40 0.50 0.62 0.76
486 517 548 581 621
0.38 0.47 0.58 0.71 0.86
517 545 576 608 642
0.45 0.55 0.66 0.79 0.95
547 573 602 634 665
0.52 0.62 0.74 0.88 1.05
576 599 627 658 689
0.59 0.70 0.83 0.97 1.15
650 674 703 734
0.87 1.01 1.17 1.35
719 745 774
1.19 1.37 1.56
763 785 812
1.39 1.57 1.78
5500 6000 6500 7000 7500
1313 1433 1552 1672 1791
605 653 702 751 801
0.73 0.91 1.12 1.36 1.63
625 671 719 767 815
0.83 1.01 1.23 1.48 1.76
644 689 735 782 829
0.93 1.12 1.34 1.60 1.89
663 706 751 797 843
1.03 1.23 1.46 1.73 2.02
682 724 767 812 858
1.13 1.34 1.58 1.85 2.16
701 741 783 827 872
1.24 1.45 1.70 1.98 2.29
721 758 799 842 885
1.34 1.57 1.82 2.11 2.43
765 796 832 871 913
1.56 1.80 2.07 2.37 2.71
805 836 868 902 941
1.78 2.03 2.32 2.64 2.99
842 873 904 936 970
2.01 2.28 2.58 2.91 3.28
8000 8500 9000 9500 10000
1911 2030 2149 2269 2388
850 900 950 1000 1050
1.94 2.29 2.68 3.11 3.59
864 913 962 1011 1061
2.08 2.43 2.83 3.27 3.76
877 925 974 1023 1072
2.22 2.58 2.99 3.44 3.94
891 938 986 1034 1083
2.36 2.73 3.14 3.60 4.11
904 951 998 1046 1094
2.50 2.88 3.30 3.77 4.28
917 963 1010 1057 1104
2.64 3.03 3.46 3.94 4.46
930 975 1021 1068 1115
2.79 3.18 3.62 4.10 4.64
956 1000 1045 1090 1136
3.08 3.49 3.95 4.44 4.99
982 1024 1068 1112 1157
3.38 3.81 4.28 4.79 5.35
1008 1049 1091 1134 1178
3.68 4.12 4.61 5.14 5.71
11000 12000 13000 14000 15000
2627 2866 3105 3343 3582
1151 1252 1353 1454 1556
4.71 6.03 7.59 9.40 11.49
1161 1261 1362 1463 1564
4.89 6.23 7.81 9.64 11.74
1171 1270 1370 1471 1571
5.08 6.44 8.03 9.88 12.01
1181 1280 1379 1479 1579
5.27 6.64 8.25 10.12 12.26
1191 1289 1387 1486 1586
5.46 6.85 8.48 10.35 12.51
1200 1297 1396 1494 1593
5.65 7.05 8.70 10.60 12.76
1210 1307 1404 1502 1601
5.84 7.26 8.92 10.83 13.02
1229 1324 1420 1517 1615
6.23 7.68 9.37 11.31 13.53
1248 1342 1436 1532 1629
6.62 8.10 9.82 11.80 14.05
1267 1359 1453 1547 1643
7.01 8.53 10.28 12.28 14.57
16000 17000 18000 19000 20000
3821 4060 4299 4537 4776
1658 1759 1861 1963 2066
13.87 16.56 19.59 22.96 26.71
1665 1766 1868 1970 2071
14.14 16.85 19.89 23.28 27.05
1672 1773 1874 1976 2077
14.42 17.14 20.20 23.60 27.38
1679 1780 1881 1982 2083
14.69 17.44 20.51 23.93 27.72
1686 1787 1887 1988 2089
14.96 17.72 20.82 24.26 28.07
1693 1793 1893 1994 2095
15.23 18.00 21.12 24.59 28.42
1700 1799 1899 2000 2100
15.50 18.29 21.42 24.90 28.76
1713 1812 1911 2011 2111
16.05 18.87 22.03 25.54 29.42
1727 1825 1924 2022 2122
16.59 19.45 22.65 26.18 30.09
1740 1837 1935 2034 2133
17.14 20.02 23.25 26.84 30.78
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
4500 5000 5500 6000 6500
1075 1194 1313 1433 1552
825 849 877 907 938
1.79 2.01 2.26 2.53 2.84
921 945 972 1001
2.48 2.75 3.05 3.39
990 1009 1033 1060
2.97 3.27 3.60 3.96
1072 1092 1117
3.81 4.16 4.55
1150 1171
4.74 5.15
1225
5.78
1278
6.43
7000 7500 8000 8500 9000
1672 1791 1911 2030 2149
970 1001 1035 1073 1114
3.18 3.57 3.99 4.45 4.95
1032 1064 1095 1126 1161
3.75 4.16 4.61 5.10 5.63
1089 1120 1151 1183 1214
4.35 4.78 5.25 5.76 6.33
1144 1173 1203 1234 1265
4.97 5.42 5.92 6.45 7.03
1196 1223 1252 1282 1313
5.61 6.08 6.60 7.16 7.77
1247 1272 1300 1329 1359
6.25 6.76 7.30 7.89 8.52
1297 1320 1346 1373 1402
9500 10000 11000 12000 13000
2269 2388 2627 2866 3105
1156 1198 1286 1377 1469
5.49 6.08 7.41 8.96 10.74
1199 1239 1324 1411 1501
6.21 6.83 8.22 9.82 11.67
1246 1282 1361 1445 1532
6.94 7.59 9.04 10.71 12.61
1297 1328 1399 1479 1564
7.67 8.35 9.87 11.60 13.56
1345 1376 1440 1514 1595
8.42 9.13 10.72 12.51 14.53
1390 1421 1484 1550 1627
9.20 9.93 11.56 13.42 15.51
14000 15000 16000 17000 18000
3343 3582 3821 4060 4299
1562 1657 1753 1850 1947
12.78 15.08 17.70 20.62 23.86
1592 1685 1779 1874 1970
13.77 16.14 18.81 21.78 25.11
1622 1713 1805 1899 1993
14.77 17.21 19.93 22.98 26.34
1651 1740 1831 1923 2016
15.78 18.28 21.07 24.17 27.60
1680 1767 1856 1947 2039
16.81 19.36 22.22 25.37 28.87
1709 1795 1882 1971 2061
19000 20000 21000
4537 4776 5015
2045 2143 2242
27.47 31.46 35.83
2067 2164 2262
28.77 32.80 37.23
2088 2185 2282
30.07 34.19 38.67
2110 2205 2301
31.40 35.54 40.10
2132 2226 2321
32.71 36.96 41.54
2153 2246 2340
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
6-1/2"SP
RPM
BHP
RPM
BHP
6.91 7.46 8.02 8.63 9.29
1346 1367 1391 1417 1445
7.60 8.16 8.76 9.40 10.08
1413 1435 1460 1486
8.88 9.50 10.17 10.89
1459 1478 1502 1527
9.62 10.26 10.96 11.70
1433 1464 1526 1589 1659
9.99 10.75 12.42 14.34 16.50
1474 1505 1567 1629 1694
10.81 11.58 13.30 15.26 17.48
1515 1544 1605 1668 1730
11.64 12.43 14.20 16.20 18.47
1554 1582 1642 1705 1767
12.47 13.30 15.11 17.16 19.47
17.85 20.46 23.36 26.59 30.14
1738 1822 1907 1995 2084
18.89 21.57 24.54 27.81 31.43
1768 1849 1933 2019 2107
19.94 22.67 25.70 29.06 32.71
1799 1876 1958 2042 2129
21.01 23.81 26.89 30.28 34.02
1832 1904 1983 2066 2152
22.08 24.93 28.08 31.55 35.32
34.05 38.32 43.02
2175 2267 2359
35.39 39.74 44.45
2196 2287 2379
36.74 41.14 45.93
2217 2307 2398
38.10 42.55 47.40
2238 2327 2417
39.46 44.00 48.87
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
8000 8500 9000 9500 10000
1911 2030 2149 2269 2388
1522 1543 1566 1592 1620
11.04 11.76 12.52 13.32 14.17
1624 1645 1668 1693
13.39 14.21 15.07 15.98
1721 1741 1764
15.94 16.85 17.81
1813 1834
18.68 19.68
1902
21.61
1971
23.61
11000 12000 13000 14000 15000
2627 2866 3105 3343 3582
1678 1740 1803 1865 1933
16.03 18.13 20.49 23.13 26.06
1749 1808 1870 1933 1995
17.94 20.12 22.56 25.30 28.34
1816 1873 1933 1995 2058
19.89 22.16 24.70 27.51 30.65
1882 1935 1994 2055 2118
21.87 24.25 26.89 29.79 33.01
1946 1996 2052 2112 2174
23.88 26.38 29.12 32.11 35.42
2009 2056 2110 2167 2227
16000 17000 18000 19000 20000
3821 4060 4299 4537 4776
2009 2090 2174 2260 2347
29.27 32.78 36.63 40.86 45.40
2063 2138 2218 2302 2387
31.68 35.32 39.28 43.62 48.29
2120 2188 2263 2344 2427
34.10 37.88 41.96 46.40 51.23
2179 2242 2311 2386 2467
36.54 40.44 44.66 49.21 54.14
2236 2298 2362 2431 2507
39.03 43.02 47.38 52.07 57.09
2289 2352 2414 2478
21000
5015
2436
50.40
2474
53.36
2512
56.39
16
6"SP
BHP
CFM
The BHP shown does not include belt drive losses.
5-1/2"SP RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
25.95 28.55 31.39 34.49 37.87
2133 2173 2221 2274 2331
30.21 33.00 36.04 39.34 42.91
2286 2328 2377 2430
37.56 40.80 44.34 48.11
2434 2476
45.74 49.40
2485
48.21
41.57 45.64 50.10 54.94
2391 2452 2515
46.82 51.03 55.62
2487
52.17
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 30.00 in. Outlet Area = 5.17 sq. ft. inside Maximum BHP = 6.16 x (RPM/1000)3 Tip Speed, fpm = 7.85 x RPM Class I Class II Class III Volume O.Vel
Size
3000
RPM 1383 RPM 1802 RPM 2267 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
3500 4000 4500 5000 5500
677 774 870 967 1064
330 359 390 423 456
0.22 0.28 0.35 0.44 0.55
367 390 416 446 477
0.29 0.36 0.44 0.54 0.65
400 422 445 470 498
0.36 0.44 0.53 0.63 0.75
430 451 473 496 520
0.44 0.52 0.62 0.73 0.86
458 477 499 522 544
0.52 0.61 0.71 0.83 0.96
486 503 523 545 568
0.61 0.70 0.81 0.93 1.07
527 546 567 590
0.79 0.91 1.04 1.18
576 591 609 630
0.99 1.12 1.26 1.42
634 649 668
1.34 1.49 1.67
688 705
1.73 1.92
6000 6500 7000 7500 8000
1161 1257 1354 1451 1548
490 525 559 595 630
0.67 0.81 0.97 1.16 1.37
510 543 576 611 645
0.78 0.93 1.10 1.29 1.51
529 561 593 626 660
0.89 1.04 1.22 1.42 1.65
548 578 610 642 674
1.00 1.17 1.35 1.56 1.79
569 596 626 657 689
1.12 1.29 1.48 1.70 1.94
591 615 643 673 703
1.23 1.41 1.62 1.84 2.09
612 635 660 688 718
1.35 1.54 1.75 1.98 2.24
652 675 698 721 747
1.60 1.80 2.02 2.27 2.54
689 711 734 757 780
1.86 2.07 2.30 2.56 2.85
724 745 767 790 813
2.13 2.35 2.59 2.86 3.16
8500 9000 9500 10000 11000
1644 1741 1838 1934 2128
666 702 738 774 847
1.60 1.86 2.15 2.47 3.21
680 715 751 786 858
1.75 2.02 2.32 2.65 3.41
694 728 763 798 869
1.90 2.18 2.48 2.82 3.59
708 741 776 810 880
2.05 2.34 2.65 3.00 3.79
722 754 788 822 890
2.21 2.50 2.82 3.17 3.98
735 767 800 833 901
2.36 2.66 2.99 3.35 4.17
749 780 812 845 912
2.52 2.83 3.17 3.53 4.37
776 806 837 868 933
2.84 3.16 3.52 3.90 4.77
804 832 861 891 954
3.16 3.50 3.87 4.28 5.17
836 859 886 914 975
3.49 3.85 4.24 4.65 5.58
12000 13000 14000 15000 16000
2321 2515 2708 2902 3095
920 993 1066 1140 1214
4.10 5.13 6.33 7.71 9.29
930 1003 1075 1149 1222
4.30 5.35 6.57 7.97 9.56
940 1012 1084 1157 1230
4.51 5.58 6.81 8.22 9.83
950 1021 1093 1165 1237
4.71 5.80 7.05 8.48 10.10
960 1030 1101 1173 1245
4.92 6.02 7.29 8.74 10.38
970 1040 1110 1181 1252
5.13 6.25 7.53 8.99 10.65
980 1049 1118 1189 1260
5.35 6.48 7.78 9.25 10.92
999 1067 1135 1205 1275
5.78 6.94 8.27 9.77 11.48
1019 1085 1152 1220 1289
6.21 7.40 8.76 10.31 12.03
1038 1102 1169 1236 1304
6.65 7.87 9.26 10.83 12.60
17000 18000 19000 20000 22000
3288 3482 3675 3869 4256
1288 1362 1436 1510 1659
11.06 13.06 15.29 17.76 23.48
1295 1369 1443 1517 1665
11.36 13.37 15.61 18.09 23.85
1303 1376 1450 1523 1670
11.64 13.68 15.94 18.44 24.22
1310 1383 1456 1529 1676
11.93 13.98 16.26 18.78 24.60
1317 1390 1463 1536 1682
12.22 14.28 16.58 19.12 24.98
1324 1396 1469 1542 1688
12.52 14.59 16.90 19.45 25.35
1331 1403 1475 1548 1693
12.80 14.91 17.22 19.79 25.72
1345 1416 1488 1560 1704
13.39 15.51 17.87 20.49 26.46
1359 1430 1500 1571 1715
13.98 16.14 18.52 21.15 27.23
1373 1443 1513 1583 1726
14.57 16.76 19.19 21.84 27.95
24000
4643
1808
30.33
1813
30.73
1818
31.14
1824
31.55
1829
31.96
1834
32.38
1839
32.78
1850
33.58
1859
34.39
1870
35.22
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5500 6000 6500 7000 7500
1064 1161 1257 1354 1451
741 758 777 798 821
2.18 2.40 2.64 2.90 3.18
823 840 858 879
2.97 3.24 3.52 3.83
900 915 934
3.86 4.17 4.51
971 986
4.85 5.20
1038
5.93
8000 8500 9000 9500 10000
1548 1644 1741 1838 1934
843 866 889 913 938
3.49 3.83 4.20 4.60 5.03
900 922 945 968 991
4.16 4.52 4.92 5.34 5.80
953 974 996 1019 1042
4.87 5.25 5.67 6.12 6.60
1004 1024 1044 1066 1088
5.60 6.01 6.45 6.92 7.43
1053 1071 1091 1111 1132
11000 12000 13000 14000 15000
2128 2321 2515 2708 2902
996 1057 1120 1185 1251
5.99 7.09 8.34 9.77 11.37
1039 1095 1155 1218 1282
6.83 8.00 9.31 10.80 12.45
1087 1135 1191 1250 1312
7.68 8.91 10.29 11.83 13.55
1134 1180 1228 1283 1343
8.55 9.84 11.28 12.89 14.67
16000 17000 18000 19000 20000
3095 3288 3482 3675 3869
1318 1387 1455 1525 1595
13.16 15.17 17.39 19.83 22.54
1347 1414 1481 1549 1618
14.31 16.38 18.65 21.17 23.92
1376 1441 1507 1574 1641
15.47 17.60 19.93 22.52 25.32
1404 1468 1532 1598 1664
22000 24000
4256 4643
1736 1879
28.70 36.02
1758 1898
30.22 37.65
1778 1918
31.75 39.30
1799 1937
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
5"SP
6"SP
6-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6.34 6.78 7.26 7.76 8.29
1102 1117 1135 1154 1175
7.11 7.58 8.07 8.60 9.16
1150 1163 1179 1197 1216
7.91 8.39 8.91 9.47 10.05
1208 1222 1238 1256
9.23 9.77 10.35 10.96
1264 1279 1296
10.65 11.25 11.89
1319 1335
12.18 12.84
1177 1223 1268 1318 1373
9.45 10.77 12.28 13.95 15.80
1218 1263 1309 1355 1405
10.37 11.74 13.29 15.02 16.94
1257 1301 1347 1393 1439
11.32 12.73 14.33 16.10 18.09
1296 1338 1384 1429 1475
12.28 13.75 15.39 17.20 19.24
1333 1374 1418 1464 1510
13.27 14.78 16.47 18.32 20.41
1370 1409 1452 1497 1543
14.28 15.84 17.56 19.48 21.59
16.64 18.83 21.24 23.86 26.75
1433 1494 1558 1622 1687
17.83 20.07 22.54 25.23 28.17
1461 1521 1583 1646 1710
19.04 21.34 23.86 26.62 29.61
1491 1548 1608 1669 1732
20.26 22.63 25.19 28.00 31.08
1522 1575 1633 1693 1755
21.47 23.90 26.55 29.42 32.52
1555 1604 1658 1717 1777
22.69 25.18 27.89 30.83 34.01
1588 1634 1685 1741 1799
23.92 26.48 29.26 32.25 35.48
33.28 40.95
1820 1956
34.84 42.63
1840 1975
36.38 44.29
1861 1994
37.97 46.01
1882 2012
39.53 47.68
1902 2031
41.15 49.42
1922 2050
42.73 51.11
10"SP
11"SP
12"SP
14"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
1934 2128 2321 2515 2708
1373 1406 1444 1485 1529
13.80 15.29 16.92 18.68 20.65
1476 1511 1550 1591
17.34 19.08 20.97 23.02
1546 1576 1612 1651
19.48 21.31 23.33 25.46
1640 1672 1709
23.60 25.70 27.96
1703 1732 1766
25.97 28.13 30.50
1791 1822
30.64 33.08
1931
38.42
15000 16000 17000 18000 19000
2902 3095 3288 3482 3675
1574 1620 1666 1713 1765
22.79 25.17 27.79 30.63 33.70
1635 1680 1726 1772 1818
25.28 27.72 30.41 33.37 36.57
1694 1737 1783 1828 1874
27.82 30.36 33.13 36.15 39.45
1750 1792 1836 1882 1927
30.42 33.06 35.91 39.02 42.39
1804 1845 1888 1932 1978
33.08 35.82 38.76 41.95 45.40
1858 1897 1938 1981 2026
35.78 38.61 41.65 44.94 48.49
1961 1997 2036 2076 2119
20000 22000 24000
3869 4256 4643
1822 1943 2068
36.99 44.35 52.84
1869 1983 2105
39.99 47.59 56.31
1920 2025 2142
43.01 50.87 59.83
1973 2068 2179
46.04 54.17 63.41
2024 2115 2217
49.13 57.48 66.97
2072 2162 2258
52.30 60.81 70.53
2163 2253
The BHP shown does not include belt drive losses.
5-1/2"SP
RPM
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
41.26 44.33 47.63 51.11 54.81
2063 2094 2128 2166 2207
46.97 50.21 53.68 57.39 61.32
2189 2219 2254
56.29 59.91 63.81
2235 2264
59.34 63.08
58.79 67.63
2249
65.49
The performance shown is for fan with outlet duct.
17
Performance Data
Wheel Diameter = 33.00 in. Outlet Area = 6.26 sq. ft. inside Maximum BHP = 10.2 x (RPM/1000)3 Tip Speed, fpm = 8.64 x RPM
Size
3300
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1246 RPM 1624 RPM 2042 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
5000 5500 6000 6500 7000
799 879 959 1038 1118
330 354 378 403 428
0.36 0.44 0.53 0.64 0.76
356 377 399 422 446
0.45 0.54 0.64 0.75 0.88
383 401 420 442 464
0.55 0.64 0.75 0.87 1.00
408 425 442 462 482
0.65 0.75 0.86 0.99 1.13
433 448 464 482 501
0.76 0.86 0.98 1.11 1.26
456 470 486 502 520
0.88 0.98 1.10 1.24 1.39
480 492 506 522 539
1.00 1.11 1.23 1.37 1.53
524 534 546 560 575
1.25 1.37 1.51 1.65 1.82
574 584 596 610
1.65 1.80 1.96 2.13
621 631 644
2.10 2.27 2.46
7500 8000 8500 9000 9500
1198 1278 1358 1438 1518
454 479 505 531 557
0.90 1.05 1.22 1.41 1.62
471 496 521 546 572
1.03 1.19 1.37 1.57 1.79
487 511 536 560 585
1.15 1.33 1.52 1.73 1.96
504 527 550 574 599
1.29 1.46 1.66 1.88 2.12
521 542 565 588 612
1.43 1.61 1.81 2.03 2.28
539 559 580 602 625
1.57 1.76 1.96 2.19 2.44
556 575 595 616 638
1.71 1.91 2.12 2.36 2.61
591 608 626 645 665
2.01 2.21 2.44 2.69 2.96
624 640 657 674 693
2.32 2.53 2.77 3.03 3.32
657 671 687 703 720
2.66 2.88 3.12 3.39 3.68
10000 11000 12000 13000 14000
1598 1757 1917 2077 2237
583 635 688 742 795
1.84 2.37 2.99 3.72 4.56
597 649 701 753 806
2.03 2.57 3.21 3.96 4.82
611 662 713 765 817
2.21 2.78 3.43 4.20 5.08
623 674 724 775 827
2.38 2.97 3.65 4.44 5.34
636 685 735 786 837
2.55 3.16 3.87 4.67 5.60
648 696 746 796 847
2.72 3.34 4.07 4.90 5.85
660 708 756 806 856
2.89 3.53 4.27 5.12 6.09
686 730 777 825 874
3.26 3.91 4.68 5.56 6.57
712 753 797 844 892
3.63 4.31 5.10 6.00 7.04
738 777 818 863 909
4.00 4.72 5.53 6.46 7.51
15000 16000 17000 18000 19000
2396 2556 2716 2876 3036
849 903 958 1012 1066
5.52 6.62 7.86 9.25 10.79
859 913 966 1020 1074
5.80 6.92 8.17 9.58 11.15
869 922 975 1029 1082
6.08 7.22 8.50 9.92 11.50
879 931 984 1037 1090
6.36 7.51 8.81 10.26 11.86
888 940 992 1045 1098
6.64 7.82 9.13 10.59 12.21
898 949 1001 1053 1105
6.92 8.11 9.45 10.93 12.56
907 958 1009 1061 1113
7.18 8.40 9.75 11.26 12.92
924 975 1025 1076 1128
7.70 8.96 10.37 11.92 13.61
941 991 1041 1091 1142
8.22 9.51 10.97 12.55 14.31
957 1006 1056 1106 1156
8.71 10.06 11.54 13.19 14.97
20000 22000 24000 26000 28000
3195 3515 3834 4154 4473
1121 1230 1339 1449 1558
12.51 16.48 21.22 26.81 33.33
1128 1237 1346 1455 1564
12.89 16.89 21.67 27.30 33.84
1136 1244 1352 1461 1569
13.25 17.30 22.13 27.79 34.37
1143 1250 1358 1467 1575
13.63 17.71 22.57 28.29 34.90
1151 1257 1364 1472 1580
14.01 18.12 23.01 28.76 35.43
1158 1264 1371 1478 1586
14.37 18.54 23.46 29.23 35.94
1165 1271 1377 1484 1591
14.74 18.94 23.91 29.72 36.45
1180 1284 1389 1495 1602
15.49 19.75 24.80 30.71 37.50
1193 1297 1401 1506 1612
16.21 20.57 25.68 31.65 38.56
1207 1309 1413 1517 1622
16.93 21.36 26.58 32.61 39.56
30000
4793
1668
40.83
1673
41.38
1678
41.94
1684
42.50
1689
43.08
1694
43.64
1699
44.18
1709
45.29
1719
46.41
1728
47.54
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6500 7000 7500 8000 8500
1039 1118 1198 1278 1358
666 676 688 701 716
2.60 2.79 3.01 3.23 3.49
749 760 772
3.74 3.99 4.26
816 826
4.79 5.08
878
5.94
9000 9500 10000 11000 12000
1438 1518 1598 1757 1917
731 748 765 801 840
3.76 4.06 4.39 5.13 5.98
785 800 815 848 884
4.55 4.87 5.21 5.98 6.87
838 850 864 894 927
5.39 5.73 6.09 6.89 7.81
888 899 912 939 970
13000 14000 15000 16000 17000
2077 2237 2397 2556 2716
882 927 973 1021 1070
6.93 8.00 9.22 10.59 12.11
922 963 1007 1052 1099
7.89 9.03 10.28 11.69 13.25
963 1000 1041 1083 1128
8.87 10.06 11.38 12.83 14.44
18000 19000 20000 22000 24000
2876 3036 3195 3515 3834
1120 1170 1220 1322 1424
13.79 15.63 17.63 22.17 27.44
1147 1196 1245 1346 1447
14.99 16.91 18.98 23.71 29.16
1174 1221 1270 1368 1469
26000 28000 30000
4154 4474 4793
1528 1632 1738
33.59 40.59 48.62
1549 1652 1756
35.45 42.65 50.84
1570 1672 1775
Volume O.Vel
7"SP
8"SP
4"SP
4-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
6.28 6.63 7.01 7.84 8.79
937 946 958 982 1010
7.19 7.56 7.97 8.84 9.82
993 1002 1025 1051
8.54 8.95 9.87 10.89
1046 1066 1090
9.98 10.94 12.00
1106 1128
12.03 13.14
1146 1166
13.16 14.31
1203
15.50
1003 1038 1076 1115 1157
9.88 11.11 12.49 14.01 15.66
1042 1075 1111 1148 1188
10.93 12.20 13.62 15.19 16.92
1080 1111 1145 1181 1218
12.04 13.33 14.78 16.39 18.17
1117 1147 1179 1213 1249
13.19 14.50 15.98 17.62 19.44
1154 1182 1213 1245 1280
14.37 15.71 17.22 18.88 20.74
1190 1216 1245 1277 1310
15.58 16.95 18.49 20.18 22.07
1225 1250 1278 1308 1340
16.81 18.24 19.80 21.52 23.44
16.21 18.18 20.32 25.18 30.85
1201 1247 1294 1390 1489
17.48 19.48 21.66 26.64 32.44
1229 1273 1318 1412 1510
18.79 20.83 23.05 28.13 34.05
1258 1300 1343 1434 1529
20.11 22.21 24.48 29.61 35.64
1287 1327 1368 1456 1549
21.44 23.60 25.93 31.13 37.24
1316 1354 1394 1479 1569
22.78 25.00 27.39 32.72 38.88
1345 1382 1420 1502 1590
24.14 26.41 28.86 34.30 40.54
1374 1409 1446 1525 1610
25.55 27.85 30.35 35.91 42.27
37.29 44.68 52.99
1590 1691 1793
39.12 46.63 55.18
1609 1709 1810
40.84 48.59 57.25
1628 1727 1828
42.61 50.45 59.33
1646 1744 1844
44.28 52.32 61.36
1664 1761 1860
46.04 54.17 63.33
1682 1778 1877
47.75 56.00 65.37
1701 1795 1892
49.55 57.88 67.28
9"SP
10"SP
11"SP
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 13000 14000 15000 16000
1917 2077 2237 2397 2556
1239 1259 1283 1309 1338
16.72 18.07 19.55 21.14 22.90
1327 1348 1372 1398
20.68 22.22 23.93 25.73
1411 1433 1457
25.00 26.77 28.69
1492 1514
29.71 31.74
1550 1570
32.75 34.84
1624
38.05
17000 18000 19000 20000 22000
2716 2876 3036 3195 3515
1369 1402 1436 1472 1549
24.84 26.96 29.29 31.83 37.54
1427 1457 1490 1524 1596
27.73 29.92 32.31 34.91 40.76
1483 1511 1542 1574 1643
30.74 32.98 35.42 38.08 44.06
1538 1564 1593 1623 1689
33.86 36.16 38.66 41.36 47.45
1592 1616 1643 1672 1734
37.06 39.44 42.00 44.77 50.96
1644 1667 1693 1720 1779
1717 1796 1881 1971
50.98 58.80 67.53 77.31
1760 1836 1917 2003
54.52 62.59 71.59 81.53
1802 1875 1953 2036
58.13 66.40 75.59 85.77
1844 1915 1989
18
5-1/2"SP
BHP
CFM
24000 3834 1631 43.98 1674 47.47 26000 4154 1719 51.33 1757 55.03 28000 4473 1812 59.73 1846 63.56 30000 4793 1908 69.26 1939 73.23 The BHP shown does not include belt drive losses.
5"SP
RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
40.33 42.80 45.45 48.28 54.58
1747 1767 1789 1813 1867
47.10 49.75 52.60 55.56 62.10
1863 1882 1903 1952
56.97 59.91 63.07 69.94
1973 1991 2035
67.60 70.85 78.04
2034
74.87
61.85 70.22 79.63
1927 1992
69.61 78.12
2007
77.64
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 36.50 in. Outlet Area = 7.65 sq. ft. inside Maximum BHP = 16.9 x (RPM/1000)3 Tip Speed, fpm = 9.56 x RPM Class I Class II Class III Volume O.Vel
Size
3650
RPM 1126 RPM 1467 RPM 1845 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
7000 8000 9000 10000 11000
914 1045 1175 1306 1437
330 366 403 441 479
0.6 0.8 1.0 1.4 1.7
349 383 419 456 493
0.7 0.9 1.2 1.5 1.9
370 401 434 470 506
0.8 1.1 1.4 1.7 2.1
391 419 450 483 519
1.0 1.2 1.5 1.9 2.3
411 437 466 497 531
1.1 1.4 1.7 2.1 2.5
431 455 482 512 544
1.3 1.5 1.9 2.2 2.7
450 473 498 526 557
1.4 1.7 2.0 2.4 2.9
487 507 530 555 583
1.7 2.0 2.4 2.8 3.3
523 540 560 584 609
2.1 2.4 2.8 3.2 3.7
572 590 612 635
2.8 3.2 3.6 4.1
12000 13000 14000 15000 16000
1567 1698 1828 1959 2090
518 557 596 635 675
2.1 2.6 3.2 3.9 4.6
531 569 607 646 685
2.4 2.9 3.5 4.2 4.9
543 581 619 657 695
2.6 3.1 3.7 4.4 5.2
555 592 629 667 705
2.8 3.3 4.0 4.7 5.5
566 603 639 677 714
3.0 3.6 4.2 5.0 5.8
578 613 649 686 723
3.2 3.8 4.5 5.2 6.1
589 624 659 695 732
3.4 4.0 4.7 5.5 6.4
613 645 678 713 749
3.8 4.5 5.2 6.0 6.9
637 667 698 732 766
4.3 4.9 5.7 6.5 7.4
661 689 719 750 783
4.7 5.4 6.2 7.1 8.0
17000 18000 19000 20000 21000
2220 2351 2481 2612 2743
714 754 794 834 874
5.5 6.4 7.4 8.6 9.9
724 763 803 842 882
5.8 6.7 7.8 9.0 10.3
733 772 811 850 890
6.1 7.1 8.2 9.4 10.7
743 781 820 858 897
6.4 7.4 8.5 9.7 11.1
752 790 828 867 905
6.7 7.7 8.9 10.1 11.4
761 799 836 874 913
7.0 8.1 9.2 10.5 11.8
769 807 844 882 920
7.3 8.4 9.6 10.8 12.2
786 823 860 897 935
7.9 9.0 10.2 11.5 13.0
802 838 874 911 949
8.5 9.6 10.9 12.2 13.7
818 853 889 925 962
9.1 10.2 11.5 12.9 14.4
22000 24000 26000 28000 30000
2873 3134 3395 3657 3918
914 994 1075 1156 1237
11.3 14.5 18.2 22.6 27.6
922 1001 1082 1162 1242
11.7 14.9 18.7 23.1 28.2
929 1008 1088 1168 1248
12.1 15.4 19.2 23.7 28.8
937 1015 1094 1174 1254
12.5 15.8 19.7 24.2 29.3
944 1022 1101 1180 1259
12.9 16.3 20.2 24.7 29.9
951 1029 1107 1186 1265
13.3 16.7 20.7 25.2 30.4
958 1035 1113 1191 1270
13.7 17.2 21.1 25.8 31.0
972 1048 1125 1203 1281
14.5 18.0 22.1 26.8 32.1
986 1061 1137 1214 1291
15.3 18.9 23.1 27.8 33.2
999 1074 1149 1225 1302
16.1 19.8 24.0 28.8 34.4
32000 34000 36000 38000
4179 4440 4701 4963
1318 1399 1480 1561
33.4 39.9 47.2 55.3
1323 1404 1484 1565
34.0 40.5 47.8 56.0
1328 1409 1489 1570
34.6 41.2 48.5 56.7
1334 1414 1494 1574
35.2 41.8 49.2 57.5
1339 1419 1499 1579
35.8 42.4 49.9 58.2
1344 1423 1503 1583
36.4 43.1 50.6 58.9
1349 1428 1508 1588
37.0 43.7 51.2 59.6
1359 1438 1517 1596
38.2 45.0 52.5 61.0
1369 1447 1526 1605
39.3 46.2 53.9 62.4
1379 1457 1535 1614
40.5 47.5 55.2 63.8
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
9000 10000 11000 12000 13000
1175 1306 1437 1567 1698
619 639 661 685 712
3.6 4.1 4.6 5.2 5.9
674 691 710 732 756
4.5 5.0 5.6 6.2 6.9
740 757 776 798
6.0 6.6 7.3 8.0
803 820 839
7.7 8.4 9.2
847 862 880
8.8 9.6 10.4
903 918
10.8 11.6
956
14000 15000 16000 17000 18000
1828 1959 2090 2220 2351
739 769 801 834 868
6.7 7.6 8.6 9.6 10.8
781 808 837 867 899
7.8 8.7 9.8 10.9 12.1
821 847 873 901 930
8.9 9.9 11.0 12.1 13.4
861 884 909 935 963
10.1 11.1 12.2 13.4 14.8
899 921 944 969 995
11.3 12.4 13.5 14.8 16.1
936 957 978 1002 1026
12.6 13.7 14.8 16.1 17.5
973 992 1012 1034 1057
19000 20000 21000 22000 24000
2481 2612 2743 2873 3134
903 939 975 1012 1086
12.2 13.6 15.2 16.8 20.6
932 966 1001 1036 1109
13.5 14.9 16.6 18.3 22.2
961 993 1026 1061 1131
14.8 16.4 18.0 19.8 23.8
991 1022 1053 1085 1153
16.3 17.8 19.5 21.3 25.5
1022 1050 1080 1111 1176
17.7 19.3 21.1 22.9 27.1
1052 1079 1107 1137 1199
19.1 20.8 22.6 24.6 28.9
26000 28000 30000 32000 34000
3395 3657 3918 4179 4440
1161 1236 1312 1389 1466
24.9 29.9 35.4 41.7 48.7
1183 1257 1332 1408 1484
26.7 31.8 37.6 44.0 51.2
1204 1277 1352 1426 1502
28.5 33.7 39.7 46.3 53.7
1224 1297 1370 1444 1519
30.2 35.6 41.7 48.5 56.0
1245 1316 1388 1462 1536
32.0 37.5 43.7 50.7 58.4
1265 1335 1406 1479 1552
36000 38000
4701 4963
1544 1622
56.5 65.2
1561 1638
59.2 68.0
1578 1654
61.8 70.8
1595 1670
64.4 73.5
1610 1686
66.9 76.3
1626 1701
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
BHP
12.9
994
14.3
13.9 15.0 16.2 17.6 19.0
1009 1026 1045 1066 1088
1082 1108 1135 1163 1223
20.6 22.3 24.2 26.2 30.6
33.8 39.4 45.7 52.8 60.7
1286 1354 1423 1495 1568
69.4 78.8
1641 1716
12"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
15000 16000 17000 18000 19000
1959 2090 2220 2351 2481
1125 1140 1158 1177 1197
20.9 22.2 23.7 25.3 27.0
1202 1217 1234 1253
25.4 27.0 28.6 30.4
1274 1289 1306
30.4 32.1 34.0
1344 1359
35.7 37.6
1410
41.4
1461
45.3
20000 21000 22000 24000 26000
2612 2743 2873 3134 3395
1219 1243 1267 1318 1373
28.8 30.8 32.9 37.7 43.2
1273 1294 1317 1366 1418
32.3 34.4 36.6 41.4 47.1
1325 1345 1366 1412 1462
35.9 38.0 40.3 45.3 51.0
1376 1394 1414 1457 1505
39.7 41.9 44.2 49.3 55.2
1426 1443 1461 1501 1547
43.5 45.8 48.2 53.4 59.4
1474 1490 1507 1545 1588
47.5 49.8 52.3 57.7 63.8
28000 30000 32000 34000 36000
3657 3918 4179 4440 4701
1433 1495 1561 1629 1700
49.3 56.0 63.6 71.9 81.3
1473 1532 1595 1661 1729
53.4 60.4 68.1 76.6 86.1
1514 1570 1630 1693 1758
57.5 64.8 72.7 81.4 91.0
1555 1608 1665 1725 1788
61.7 69.2 77.4 86.4 96.1
1595 1646 1701 1758 1819
66.1 73.7 82.1 91.3 101.3
1634 1684 1736 1791
70.6 78.2 86.7 96.2
38000
4963
1771
91.5
1799
96.5
1826
101.5
The BHP shown does not include belt drive losses.
5-1/2"SP RPM
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
15.3 16.5 17.7 19.0 20.5
1044 1059 1077 1097 1118
16.7 17.9 19.2 20.6 22.1
1078 1093 1109 1128 1148
18.1 19.4 20.7 22.1 23.7
1112 1137 1162 1189 1246
22.1 23.9 25.8 27.8 32.4
1141 1165 1190 1215 1270
23.7 25.5 27.4 29.5 34.1
1169 1192 1216 1242 1294
25.3 27.1 29.1 31.2 35.9
35.6 41.3 47.7 54.9 62.9
1308 1373 1441 1511 1583
37.5 43.2 49.7 57.1 65.2
1330 1393 1459 1528 1599
39.4 45.2 51.8 59.2 67.4
1352 1412 1477 1544 1614
41.3 47.3 53.9 61.4 69.7
71.7 81.5
1656 1730
74.1 84.0
1671 1744
76.5 86.5
1685 1758
78.9 89.0
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
1582 1597 1631 1669
58.2 60.8 66.5 72.8
1684 1713 1748
69.6 75.7 82.4
1794 1824
85.2 92.1
1833
90.0
1711 1757 1806
79.9 87.7 96.5
1786 1829
89.6 97.7
The performance shown is for fan with outlet duct.
19
Performance Data
Wheel Diameter = 40.25 in. Outlet Area = 9.31 sq. ft. inside Maximum BHP = 27.5 x (RPM/1000)3 Tip Speed, fpm = 10.5 x RPM
Size
4025
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 1021 RPM 1331 RPM 1674 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
7000 8000 9000 10000 11000
752 859 967 1074 1181
260 285 312 340 367
0.5 0.6 0.8 1.0 1.3
283 305 329 355 382
0.6 0.8 1.0 1.2 1.5
306 325 346 370 395
0.7 0.9 1.1 1.4 1.7
327 345 364 386 409
0.9 1.1 1.3 1.6 1.9
348 364 382 402 424
1.1 1.2 1.5 1.7 2.1
368 383 399 418 438
1.2 1.4 1.7 1.9 2.3
388 401 416 434 453
1.4 1.6 1.9 2.1 2.5
436 449 464 482
2.0 2.3 2.6 2.9
480 494 509
2.7 3.0 3.4
510 522 536
3.1 3.5 3.9
12000 13000 14000 15000 16000
1289 1396 1504 1611 1718
396 424 453 481 510
1.6 1.9 2.3 2.8 3.3
409 437 465 493 521
1.8 2.2 2.6 3.1 3.6
422 449 476 504 532
2.0 2.4 2.8 3.3 3.9
434 460 487 514 542
2.2 2.6 3.1 3.6 4.2
447 472 498 525 552
2.4 2.8 3.3 3.9 4.5
460 484 509 535 561
2.7 3.1 3.6 4.1 4.7
474 496 520 545 570
2.9 3.3 3.8 4.4 5.0
500 521 542 565 589
3.3 3.8 4.3 4.9 5.6
527 545 565 587 609
3.8 4.3 4.9 5.5 6.2
552 569 588 608 629
4.3 4.8 5.4 6.0 6.7
17000 18000 19000 20000 21000
1826 1933 2041 2148 2255
540 569 598 628 657
3.9 4.5 5.3 6.1 6.9
550 579 608 637 666
4.2 4.9 5.6 6.4 7.3
560 588 617 646 674
4.5 5.2 6.0 6.8 7.7
570 598 626 654 683
4.8 5.5 6.3 7.2 8.1
579 607 635 663 691
5.1 5.9 6.7 7.5 8.5
588 616 643 671 699
5.4 6.2 7.0 7.9 8.9
597 624 651 679 707
5.7 6.5 7.3 8.2 9.2
615 641 667 694 721
6.3 7.1 8.0 8.9 10.0
633 657 683 709 736
6.9 7.7 8.6 9.6 10.7
651 675 699 724 750
7.5 8.4 9.3 10.3 11.4
22000 24000 26000 28000 30000
2363 2577 2792 3007 3222
687 747 806 866 926
7.9 10.1 12.7 15.6 19.1
695 754 813 873 933
8.3 10.5 13.1 16.2 19.6
703 762 820 879 939
8.7 11.0 13.6 16.7 20.2
712 769 827 886 945
9.1 11.4 14.1 17.2 20.7
719 777 834 892 951
9.5 11.9 14.6 17.7 21.3
727 784 841 898 957
9.9 12.3 15.1 18.2 21.9
735 791 848 905 962
10.3 12.8 15.5 18.8 22.4
749 804 861 917 974
11.1 13.6 16.5 19.8 23.5
763 818 873 929 985
11.8 14.4 17.4 20.8 24.6
776 830 885 941 997
12.6 15.2 18.3 21.8 25.7
32000 34000 36000 38000 40000
3437 3651 3866 4081 4296
986 1047 1107 1167 1228
23.0 27.4 32.3 37.9 44.0
992 1052 1112 1172 1232
23.6 28.0 33.0 38.6 44.8
998 1058 1117 1177 1237
24.2 28.7 33.7 39.3 45.5
1004 1063 1122 1182 1242
24.8 29.3 34.4 40.0 46.3
1009 1068 1127 1187 1246
25.4 29.9 35.0 40.7 47.0
1015 1074 1133 1192 1251
26.0 30.6 35.7 41.4 47.7
1020 1079 1138 1196 1255
26.5 31.2 36.4 42.1 48.5
1031 1089 1147 1206 1264
27.7 32.4 37.7 43.6 50.0
1042 1100 1157 1215 1273
28.9 33.7 39.0 44.9 51.5
1053 1110 1167 1224 1282
30.1 34.9 40.4 46.4 52.9
44000
4725
1349
58.2
1353
59.1
1357
59.9
1361
60.7
1366
61.6
1370
62.4
1374
63.2
1382
64.8
1390
66.4
1398
68.1
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
1074 1181 1289 1396 1504
549 562 577 593 610
4.0 4.4 4.9 5.4 6.0
612 624 638 654
5.5 6.0 6.5 7.2
670 682 695
7.2 7.8 8.4
724 736
9.1 9.8
774
11.1
813
12.6
15000 16000 17000 18000 19000
1611 1718 1826 1933 2041
629 649 670 692 715
6.6 7.3 8.1 9.0 10.0
671 689 708 728 749
7.8 8.6 9.4 10.4 11.4
711 727 745 763 783
9.2 9.9 10.8 11.8 12.8
749 764 780 797 816
10.5 11.3 12.2 13.2 14.3
787 800 815 831 848
12.0 12.8 13.7 14.8 15.9
823 835 849 864 880
20000 21000 22000 24000 26000
2148 2255 2363 2577 2792
739 764 790 843 897
11.0 12.1 13.3 16.0 19.2
771 794 818 867 920
12.5 13.6 14.9 17.7 20.9
803 824 846 893 943
14.0 15.2 16.5 19.4 22.7
835 854 875 919 966
15.5 16.8 18.1 21.2 24.6
866 884 904 945 990
17.1 18.4 19.8 22.9 26.5
28000 30000 32000 34000 36000
3007 3222 3437 3651 3866
952 1007 1063 1120 1176
22.7 26.7 31.2 36.2 41.7
973 1028 1083 1139 1195
24.6 28.8 33.5 38.6 44.3
994 1048 1102 1157 1212
26.5 30.8 35.6 40.9 46.8
1016 1067 1120 1175 1229
28.4 32.8 37.7 43.2 49.2
1037 1087 1139 1192 1246
38000 40000 44000
4081 4296 4725
1233 1291 1406
47.8 54.4 69.7
1251 1308 1422
50.5 57.3 73.0
1268 1324 1437
53.2 60.2 76.1
1285 1340 1452
55.8 63.0 79.3
1300 1355 1467
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
13.4 14.4 15.3 16.4 17.5
859 870 882 896 910
15.0 15.9 16.9 18.0 19.2
903 914 927 941
17.5 18.6 19.7 20.9
946 958 971
20.3 21.5 22.7
977 988 1000
22.0 23.2 24.5
897 914 933 972 1014
18.7 20.1 21.5 24.7 28.4
926 943 961 998 1039
20.5 21.8 23.3 26.6 30.3
956 971 989 1025 1063
22.2 23.6 25.1 28.4 32.3
985 999 1016 1050 1088
24.1 25.5 27.0 30.4 34.3
1013 1027 1043 1076 1111
25.9 27.4 29.0 32.4 36.3
30.4 34.9 39.9 45.4 51.6
1059 1107 1157 1209 1262
32.5 37.0 42.1 47.7 54.0
1082 1128 1176 1226 1278
34.5 39.2 44.3 50.0 56.4
1105 1149 1195 1244 1294
36.6 41.4 46.6 52.4 58.8
1127 1170 1214 1262 1311
38.7 43.6 49.0 54.8 61.3
1150 1191 1234 1280 1328
40.8 45.8 51.3 57.3 63.9
58.3 65.7 82.3
1316 1370 1481
60.9 68.4 85.4
1331 1385 1495
63.4 71.0 88.3
1346 1399 1508
65.9 73.6 91.2
1362 1414 1521
68.5 76.3 94.1
1377 1428 1534
71.1 79.0 97.0
11"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
18000 19000 20000 21000 22000
1933 2041 2148 2255 2363
1018 1029 1041 1055 1069
25.1 26.4 27.8 29.3 30.9
1085 1095 1107 1120
30.2 31.7 33.3 35.0
1149 1159 1171
35.8 37.5 39.2
1209 1219
41.8 43.6
1268
48.1
24000 26000 28000 30000 32000
2577 2792 3007 3222 3437
1101 1135 1172 1212 1254
34.5 38.4 42.9 48.0 53.6
1149 1181 1217 1254 1293
38.7 42.8 47.4 52.6 58.4
1197 1227 1259 1295 1332
43.1 47.3 52.0 57.3 63.2
1244 1271 1302 1335 1371
47.6 52.0 56.8 62.3 68.2
1289 1315 1343 1375 1409
1372 1414 1457 1503 1600
69.8 76.9 84.7 93.1 111.8
1409 1449 1490 1534 1627
74.9 82.2 90.2 98.8 118.0
1445 1483 1523 1565 1655
20
5-1/2"SP
BHP
CFM
34000 3651 1298 59.8 1335 64.7 36000 3866 1344 66.4 1379 71.7 38000 4081 1393 73.7 1425 79.2 40000 4296 1443 81.7 1473 87.3 44000 4725 1547 99.9 1573 105.7 The BHP shown does not include belt drive losses.
5"SP RPM
12"SP
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
52.3 56.8 61.8 67.3 73.4
1334 1357 1384 1414 1446
57.0 61.8 66.9 72.6 78.8
1440 1463 1490 1519
71.9 77.4 83.4 89.9
1540 1564 1590
88.3 94.7 101.4
1635 1659
106.2 113.5
1671
112.3
80.2 87.6 95.8 104.6 124.3
1481 1518 1556 1596
85.6 93.2 101.5 110.5
1551 1585 1621 1659
97.0 104.7 113.2 122.4
1619 1650
108.8 116.8
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 44.50 in. Outlet Area = 11.37 sq. ft. inside Maximum BHP = 45.1 x (RPM/1000)3 Tip Speed, fpm = 11.7 x RPM Class I Class II Class III Volume O.Vel
Size
4450
RPM 922 RPM 1201 RPM 1511 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
8000 9000 10000 11000 12000
704 792 879 967 1055
226 244 263 282 302
0.5 0.6 0.8 1.0 1.2
249 264 281 298 317
0.7 0.8 1.0 1.2 1.4
270 284 299 315 332
0.8 1.0 1.2 1.4 1.6
290 302 316 331 347
1.0 1.1 1.3 1.6 1.9
309 320 333 347 362
1.2 1.3 1.5 1.8 2.1
327 338 349 362 376
1.3 1.5 1.7 2.0 2.3
345 354 365 377 391
1.5 1.7 2.0 2.2 2.5
386 395 406 418
2.2 2.4 2.7 3.0
424 434 444
2.9 3.2 3.5
460 470
3.7 4.1
13000 14000 15000 16000 17000
1143 1231 1319 1407 1495
322 343 364 385 406
1.4 1.7 2.0 2.3 2.7
336 356 376 396 417
1.6 1.9 2.2 2.6 3.0
350 369 388 407 427
1.9 2.2 2.5 2.9 3.3
364 382 400 419 438
2.2 2.5 2.8 3.2 3.6
378 395 412 430 449
2.4 2.7 3.1 3.5 4.0
391 407 424 441 459
2.6 3.0 3.4 3.8 4.3
405 420 436 453 470
2.8 3.2 3.7 4.1 4.6
431 445 460 475 491
3.3 3.7 4.2 4.7 5.3
456 469 483 497 512
3.9 4.3 4.8 5.3 5.8
480 492 505 518 533
4.4 4.9 5.3 5.9 6.5
18000 19000 20000 22000 24000
1583 1671 1759 1935 2111
427 449 471 514 558
3.1 3.6 4.1 5.3 6.7
437 458 480 522 566
3.4 3.9 4.4 5.7 7.1
448 468 489 531 573
3.8 4.3 4.8 6.1 7.6
458 478 498 539 581
4.1 4.6 5.2 6.5 8.0
468 487 507 547 588
4.4 5.0 5.5 6.9 8.4
478 497 516 555 596
4.8 5.3 5.9 7.3 8.8
488 506 525 564 603
5.1 5.7 6.3 7.7 9.3
508 525 543 580 618
5.9 6.5 7.1 8.5 10.2
528 544 561 596 633
6.5 7.2 7.9 9.4 11.1
547 563 579 613 648
7.1 7.8 8.6 10.3 12.1
26000 28000 30000 32000 34000
2287 2463 2638 2814 2990
602 646 691 735 780
8.4 10.4 12.6 15.1 18.0
609 653 697 741 785
8.8 10.8 13.1 15.7 18.6
616 659 703 747 790
9.3 11.3 13.6 16.2 19.1
623 666 709 752 796
9.7 11.8 14.1 16.7 19.7
630 672 715 758 801
10.2 12.3 14.6 17.3 20.3
637 679 721 763 806
10.7 12.8 15.1 17.8 20.9
644 685 727 769 811
11.1 13.3 15.7 18.4 21.4
658 698 739 780 822
12.1 14.3 16.8 19.5 22.6
672 711 751 791 833
13.1 15.3 17.9 20.7 23.9
686 724 763 803 843
14.1 16.4 19.0 21.9 25.1
36000 38000 40000 44000 48000
3166 3342 3518 3870 4222
824 869 914 1003 1093
21.2 24.8 28.8 38.1 49.2
830 874 918 1008 1097
21.8 25.5 29.5 38.8 49.9
835 879 923 1012 1101
22.4 26.1 30.2 39.5 50.7
840 883 928 1016 1105
23.0 26.7 30.8 40.3 51.5
844 888 932 1020 1109
23.6 27.3 31.5 41.0 52.3
849 893 936 1024 1112
24.2 28.0 32.1 41.7 53.1
854 898 941 1028 1116
24.8 28.6 32.8 42.4 53.9
864 907 950 1036 1123
26.1 29.9 34.2 43.9 55.5
874 916 959 1044 1131
27.4 31.3 35.6 45.4 57.1
884 926 968 1052 1138
28.7 32.6 37.0 46.9 58.7
52000 56000
4573 4925
1183 1273
62.2 77.4
1187 1276
63.0 78.3
1190 1280
63.9 79.2
1194 1283
64.7 80.1
1197 1286
65.6 81.1
1201 1290
66.5 82.0
1204 1293
67.3 82.9
1211 1299
69.0 84.7
1218 1305
70.7 86.5
1225 1312
72.5 88.4
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 13000 14000 15000 16000
1055 1143 1231 1319 1407
493 504 515 526 539
4.6 5.0 5.5 6.0 6.5
548 557 568 579
6.2 6.7 7.3 7.9
597 607 617
8.0 8.6 9.3
644 653
10.1 10.7
688
12.3
17000 18000 19000 20000 22000
1495 1583 1671 1759 1935
552 567 581 597 629
7.1 7.8 8.5 9.3 11.1
591 604 617 631 661
8.5 9.2 9.9 10.7 12.6
628 640 652 665 693
9.9 10.7 11.5 12.3 14.2
664 674 686 698 724
11.5 12.2 13.1 13.9 15.9
697 707 718 729 753
24000 26000 28000 30000 32000
2111 2287 2463 2638 2814
663 699 737 775 814
13.0 15.1 17.5 20.1 23.1
693 727 762 799 836
14.8 17.2 19.7 22.4 25.5
723 754 788 823 859
16.5 19.1 21.9 24.8 28.0
752 781 813 847 881
18.2 20.8 23.9 27.2 30.6
34000 36000 38000 40000 44000
2990 3166 3342 3518 3870
854 894 935 976 1060
26.4 30.0 34.0 38.4 48.4
875 914 954 994 1076
28.9 32.7 36.8 41.3 51.6
896 934 973 1012 1093
31.5 35.4 39.6 44.2 54.8
917 954 992 1030 1109
48000 52000 56000
4222 4573 4925
1145 1231 1318
60.3 74.2 90.3
1160 1245 1330
63.7 77.8 94.0
1175 1258 1343
67.1 81.4 97.9
1189 1272 1355
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
5"SP
6"SP
6-1/2"SP
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
13.0 13.9 14.7 15.6 17.7
730 739 749 760 782
14.6 15.5 16.4 17.4 19.5
770 779 789 811
17.2 18.2 19.2 21.4
808 818 838
20.0 21.1 23.4
845 865
22.9 25.4
873 891
24.9 27.4
780 808 838 870 904
20.0 22.7 25.8 29.3 33.1
807 834 863 894 926
21.9 24.6 27.7 31.3 35.3
834 860 888 917 948
23.9 26.7 29.8 33.4 37.5
861 885 912 940 969
25.9 28.8 32.0 35.6 39.6
886 910 935 962 991
28.0 30.9 34.2 37.8 41.9
912 934 958 984 1012
30.1 33.1 36.4 40.2 44.3
34.2 38.2 42.5 47.3 58.0
938 974 1010 1048 1125
36.9 41.0 45.5 50.4 61.3
959 994 1029 1066 1141
39.6 43.9 48.5 53.4 64.6
980 1013 1048 1083 1157
42.0 46.7 51.5 56.6 68.0
1000 1033 1067 1101 1173
44.3 49.2 54.4 59.8 71.4
1021 1052 1085 1119 1189
46.5 51.7 57.2 62.9 74.9
1041 1072 1104 1136 1206
48.9 54.1 59.8 65.8 78.4
70.5 85.1 101.8
1204 1285 1368
74.1 88.8 105.7
1219 1299 1380
77.6 92.6 109.7
1234 1312 1392
81.3 96.4 113.8
1248 1326 1405
84.9 100.3 117.9
1263 1339 1417
88.6 104.2 122.0
1278 1353 1430
92.3 108.2 126.2
10"SP
11"SP
12"SP
14"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
22000 24000 26000 28000 30000
1935 2111 2287 2463 2638
917 936 958 981 1006
29.4 32.3 35.4 38.8 42.5
983 1004 1026 1049
36.7 40.0 43.5 47.4
1030 1048 1069 1091
41.2 44.7 48.5 52.6
1091 1110 1131
49.5 53.5 57.8
1133 1150 1170
54.5 58.7 63.2
1189 1208
63.9 68.6
1281
79.8
32000 34000 36000 38000 40000
2814 2990 3166 3342 3518
1033 1062 1091 1122 1154
46.7 51.4 56.5 62.4 68.6
1074 1101 1129 1158 1189
51.8 56.5 61.7 67.5 74.0
1114 1139 1166 1194 1223
57.0 61.8 67.2 73.0 79.4
1153 1177 1202 1229 1257
62.4 67.3 72.8 78.8 85.2
1192 1214 1238 1264 1290
68.0 73.0 78.6 84.7 91.3
1229 1250 1273 1297 1323
73.6 78.9 84.6 90.8 97.5
1299 1320 1341 1363 1387
44000 48000 52000 56000
3870 4222 4573 4925
1221 1292 1366 1442
81.8 96.1 112.1 130.3
1253 1322 1393 1467
88.2 103.6 120.3 138.9
1285 1351 1420 1492
94.2 110.9 128.4 147.5
1316 1380 1447
100.1 117.7 136.3
1347 1409 1473
106.1 124.0 143.8
1378 1437 1500
112.5 130.3 151.0
1438 1494
The BHP shown does not include belt drive losses.
5-1/2"SP
RPM
16"SP
18"SP
RPM
BHP
RPM
BHP
85.1 90.9 97.1 103.4 110.3
1368 1386 1406 1427 1449
97.1 103.2 109.7 116.6 123.7
1450 1468 1487 1508
115.9 122.7 130.0 137.6
125.9 143.7
1496
139.7
19"SP RPM
BHP
1498
129.3
The performance shown is for fan with outlet duct.
21
Performance Data
Wheel Diameter = 4900 in. Outlet Area = 13.78 sq. ft. inside Maximum BHP = 73.1 x (RPM/1000)3 Tip Speed, fpm = 12.8 x RPM
Size
4900
SISW
Class I Class II Class III
Design 7620 Centrifugal BI Fans Volume O.Vel
1/4"SP
3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
RPM 837 RPM 1090 RPM 1371 1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
10000 11000 12000 13000 14000
725 798 870 943 1016
209 223 237 251 266
0.7 0.8 0.9 1.1 1.3
229 241 253 266 280
0.8 1.0 1.2 1.4 1.6
248 259 270 282 294
1.0 1.2 1.4 1.6 1.8
266 275 286 297 308
1.2 1.4 1.6 1.8 2.1
283 292 301 311 322
1.5 1.6 1.8 2.1 2.3
299 307 316 326 336
1.7 1.9 2.1 2.3 2.6
315 322 331 339 349
1.9 2.1 2.3 2.6 2.9
351 358 366 375
2.6 2.9 3.2 3.5
384 391 399
3.5 3.8 4.1
415 422
4.4 4.7
15000 16000 18000 20000 22000
1088 1161 1306 1451 1596
281 296 327 359 391
1.5 1.8 2.3 3.0 3.8
294 309 338 369 400
1.8 2.1 2.6 3.4 4.2
308 321 349 379 409
2.1 2.4 3.0 3.7 4.6
321 334 361 389 418
2.4 2.7 3.3 4.1 5.0
334 346 372 399 427
2.6 3.0 3.7 4.5 5.5
347 358 383 409 436
2.9 3.3 4.1 4.9 5.9
359 370 394 419 445
3.2 3.5 4.4 5.3 6.3
384 394 415 438 463
3.8 4.1 5.0 6.0 7.2
407 416 436 458 481
4.4 4.8 5.7 6.7 8.0
430 438 457 477 499
5.1 5.5 6.4 7.5 8.7
24000 26000 28000 30000 32000
1741 1886 2031 2176 2321
423 456 489 522 555
4.8 6.0 7.3 8.9 10.6
432 464 496 528 561
5.3 6.4 7.8 9.4 11.2
440 471 503 535 567
5.7 6.9 8.3 9.9 11.7
448 479 510 542 573
6.1 7.4 8.8 10.4 12.3
457 487 517 548 579
6.6 7.9 9.3 11.0 12.8
465 494 524 555 586
7.0 8.3 9.8 11.5 13.4
473 502 531 561 592
7.5 8.8 10.3 12.1 14.0
490 517 546 575 604
8.5 9.8 11.4 13.2 15.2
506 533 560 588 617
9.4 10.9 12.5 14.3 16.4
523 548 574 601 629
10.3 11.9 13.6 15.5 17.6
34000 36000 38000 40000 44000
2466 2611 2756 2901 3192
588 621 654 688 755
12.6 14.8 17.3 20.0 26.4
594 627 660 693 759
13.2 15.4 17.9 20.7 27.1
600 632 665 698 764
13.8 16.0 18.6 21.4 27.8
605 638 670 703 768
14.3 16.6 19.2 22.0 28.5
611 643 675 708 773
14.9 17.3 19.8 22.7 29.3
617 649 680 712 777
15.5 17.9 20.5 23.4 30.0
623 654 686 717 782
16.1 18.5 21.2 24.1 30.8
635 665 696 727 791
17.4 19.8 22.5 25.5 32.3
646 676 706 737 799
18.6 21.2 23.9 26.9 33.8
658 687 717 747 808
19.9 22.5 25.3 28.4 35.4
48000 52000 56000 60000 64000
3482 3772 4062 4352 4642
822 889 956 1023 1091
33.9 42.8 53.2 65.2 78.8
826 893 959 1027 1094
34.7 43.7 54.1 66.2 79.9
830 897 963 1030 1097
35.5 44.6 55.1 67.1 80.9
834 900 967 1033 1100
36.3 45.4 56.0 68.1 81.9
838 904 970 1037 1103
37.1 46.3 56.9 69.1 83.0
842 908 974 1040 1106
37.9 47.1 57.8 70.1 84.1
846 912 977 1043 1109
38.7 48.0 58.7 71.1 85.1
854 919 984 1050 1116
40.3 49.7 60.6 73.0 87.2
863 927 991 1056 1121
42.0 51.5 62.5 75.1 89.3
871 934 998 1063 1128
43.7 53.3 64.4 77.1 91.5
68000
4933
1158
94.3
1161
95.4
1164
96.5
1167
97.6
1170
98.7
1173
99.8
1176
101.0
1182
103.2
1187
105.4
1193
107.6
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
14000 15000 16000 18000 20000
1016 1088 1161 1306 1451
444 451 459 476 496
5.4 5.8 6.2 7.1 8.2
492 499 514 531
7.2 7.7 8.7 9.9
550 566
10.4 11.7
584 598
12.1 13.5
629
15.3
22000 24000 26000 28000 30000
1596 1741 1886 2031 2176
517 539 563 588 614
9.5 11.1 12.9 14.7 16.7
550 571 593 616 641
11.3 12.8 14.6 16.7 19.0
583 602 622 644 667
13.1 14.7 16.5 18.7 21.1
614 631 650 671 692
15.0 16.7 18.6 20.7 23.2
644 660 678 697 718
32000 34000 36000 38000 40000
2321 2466 2611 2756 2901
642 670 698 727 757
18.9 21.3 23.9 26.8 29.9
666 693 720 748 777
21.4 23.9 26.7 29.7 32.9
691 716 742 769 797
23.8 26.6 29.6 32.7 36.0
715 739 764 790 816
26.0 29.1 32.3 35.7 39.2
44000 48000 52000 56000 60000
3192 3482 3772 4062 4352
817 879 942 1005 1069
37.0 45.4 55.1 66.3 79.1
835 895 957 1019 1082
40.3 48.9 58.9 70.2 83.3
853 912 972 1033 1095
43.6 52.5 62.6 74.3 87.5
871 928 987 1047 1108
64000 68000
4642 4933
1133 1198
93.6 109.9
1145 1210
97.9 114.4
1158 1221
102.4 119.1
1170 1232
Volume O.Vel
7"SP
8"SP
9"SP
4-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
17.0 18.7 20.7 22.9 25.4
672 688 705 723 742
19.0 20.9 22.9 25.2 27.8
700 715 731 748 766
21.0 23.0 25.2 27.5 30.2
741 756 772 790
25.3 27.6 30.0 32.7
766 781 796 813
27.5 29.9 32.5 35.2
804 819 835
32.3 35.0 37.8
739 762 786 810 836
28.2 31.4 34.8 38.5 42.3
763 784 807 831 855
30.6 33.7 37.3 41.2 45.3
786 807 828 851 875
33.1 36.2 39.8 43.7 48.1
808 828 849 871 894
35.6 38.8 42.4 46.4 50.8
830 850 870 891 913
38.2 41.5 45.2 49.1 53.5
852 871 890 911 932
40.9 44.3 48.0 52.0 56.4
47.0 56.1 66.5 78.4 91.8
889 945 1002 1061 1121
50.5 59.8 70.4 82.5 96.2
907 961 1017 1075 1134
54.0 63.5 74.4 86.8 100.6
925 977 1032 1089 1147
57.4 67.3 78.4 90.9 105.1
942 994 1047 1103 1160
60.6 71.1 82.5 95.3 109.6
960 1010 1062 1116 1173
63.6 74.8 86.6 99.6 114.2
978 1026 1077 1130 1185
66.6 78.2 90.7 104.0 118.7
106.9 123.8
1182 1243
111.5 128.7
1194 1255
116.2 133.5
1206 1266
120.9 138.4
1218 1278
125.6 143.5
1230 1289
130.4 148.4
1242 1300
135.2 153.5
10"SP
11"SP
12"SP
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
26000 28000 30000 32000 34000
1886 2031 2176 2321 2466
827 842 857 874 891
34.7 37.6 40.5 43.7 47.1
886 900 915 932
42.7 46.0 49.3 52.9
941 955 971
51.5 55.1 58.9
994 1009
61.0 65.0
1032 1045
67.1 71.2
1080
77.6
36000 38000 40000 44000 48000
2611 2756 2901 3192 3482
910 930 951 995 1042
50.8 54.9 59.4 69.5 81.6
949 968 988 1029 1074
56.8 61.0 65.6 75.8 88.0
987 1005 1023 1063 1105
62.9 67.2 71.9 82.4 94.6
1024 1041 1058 1095 1136
69.3 73.7 78.5 89.3 101.6
1060 1076 1092 1128 1167
75.7 80.4 85.4 96.3 109.0
1094 1109 1125 1159 1197
52000 56000 60000 64000 68000
3772 4062 4352 4642 4933
1092 1144 1198 1254 1311
94.7 108.4 123.4 140.2 158.5
1122 1172 1224 1278 1334
102.1 117.1 132.8 150.0 168.9
1151 1199 1250 1302 1357
109.0 125.1 142.1 160.0 179.4
1180 1226 1275 1326
116.0 132.6 150.8 169.8
1209 1253 1301 1350
123.4 140.1 159.1 179.4
1237 1280 1326
22
5-1/2"SP
BHP
CFM
The BHP shown does not include belt drive losses.
5"SP
RPM
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
82.2 87.2 92.4 103.6 116.4
1162 1175 1189 1221 1255
95.8 101.1 106.7 118.7 132.0
1250 1279 1311
121.3 134.2 148.2
1335 1366
150.0 164.9
1363
158.2
131.1 147.7 167.1
1292 1333
147.1 164.1
1346
163.7
The performance shown is for fan with outlet duct.
Performance Data
Wheel Diameter = 54.25 in. Outlet Area = 16.91 sq. ft. inside Maximum BHP = 122. x (RPM/1000)3 Tip Speed, fpm = 14.2 x RPM Class I Class II Class III Volume O.Vel
Size
5425
RPM 756 RPM 986 RPM 1240 1/4"SP
SISW
Design 7620 Centrifugal BI Fans 3/8"SP
1/2"SP
5/8"SP
3/4"SP
7/8"SP
1"SP
1-1/4"SP
1-1/2"SP
1-3/4"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
12000 14000 16000 18000 20000
710 828 947 1065 1184
187 207 228 249 272
0.8 1.0 1.4 1.8 2.2
205 222 241 262 283
1.0 1.3 1.7 2.1 2.6
222 238 255 274 294
1.2 1.6 2.0 2.5 3.0
238 253 269 286 305
1.5 1.8 2.3 2.8 3.4
254 267 282 298 316
1.7 2.1 2.6 3.1 3.8
269 281 295 310 327
2.0 2.4 2.9 3.4 4.1
283 294 307 322 338
2.3 2.7 3.2 3.8 4.5
320 331 344 359
3.4 3.9 4.5 5.2
354 365 379
4.6 5.3 6.0
375 386 398
5.4 6.1 6.9
22000 24000 26000 28000 30000
1302 1420 1539 1657 1775
295 318 342 365 389
2.8 3.5 4.3 5.2 6.3
305 327 350 373 397
3.2 3.9 4.8 5.7 6.8
315 337 359 381 404
3.6 4.4 5.2 6.2 7.3
325 346 367 389 411
4.1 4.8 5.7 6.7 7.9
335 355 376 397 419
4.5 5.3 6.2 7.3 8.4
345 364 384 405 426
4.9 5.8 6.7 7.8 9.0
355 373 393 413 434
5.3 6.3 7.3 8.3 9.6
374 392 410 429 448
6.1 7.1 8.3 9.5 10.7
394 409 426 444 463
6.9 7.9 9.2 10.5 11.9
412 427 443 460 477
7.8 8.9 10.1 11.5 13.0
32000 34000 36000 38000 40000
1894 2012 2130 2249 2367
413 438 462 486 511
7.4 8.8 10.3 11.9 13.8
420 444 468 492 516
8.0 9.3 10.9 12.6 14.4
427 450 474 498 521
8.5 9.9 11.5 13.2 15.1
434 457 480 503 527
9.1 10.5 12.1 13.9 15.8
441 463 486 509 532
9.7 11.2 12.8 14.5 16.5
448 470 492 515 538
10.3 11.8 13.4 15.2 17.2
455 476 499 521 543
10.9 12.4 14.1 15.9 18.0
469 489 511 532 555
12.2 13.7 15.5 17.4 19.4
482 502 523 544 566
13.4 15.1 16.9 18.8 20.9
496 515 535 556 577
14.7 16.4 18.3 20.3 22.5
44000 48000 52000 56000 60000
2604 2840 3077 3314 3551
559 609 658 707 756
18.0 23.1 29.1 36.0 44.0
564 613 662 711 760
18.8 23.9 30.0 37.0 45.0
569 618 666 715 764
19.5 24.7 30.8 37.9 46.0
574 622 670 719 768
20.2 25.5 31.7 38.8 47.0
579 627 675 723 771
21.0 26.3 32.5 39.7 48.0
584 631 679 727 775
21.8 27.1 33.4 40.7 49.0
589 636 683 731 778
22.5 28.0 34.3 41.6 50.0
599 645 691 738 786
24.1 29.7 36.1 43.5 52.0
609 654 700 746 793
25.8 31.4 38.0 45.5 54.1
619 663 708 754 800
27.4 33.2 39.9 47.5 56.2
64000 68000 72000 76000 80000
3787 4024 4261 4497 4734
806 855 905 955 1004
53.2 63.5 75.1 88.0 102.4
809 859 908 958 1007
54.2 64.6 76.2 89.2 103.7
813 862 911 960 1010
55.3 65.7 77.4 90.5 104.9
816 865 914 963 1013
56.3 66.8 78.6 91.7 106.3
820 869 918 966 1015
57.4 67.9 79.8 93.0 107.6
823 872 921 969 1018
58.4 69.0 81.0 94.2 108.9
827 875 923 972 1021
59.5 70.2 82.1 95.5 110.2
833 881 929 978 1026
61.6 72.4 84.5 97.9 112.8
840 888 935 983 1032
63.8 74.7 86.9 100.5 115.4
847 894 941 989 1037
66.0 77.0 89.3 103.0 118.1
Volume O.Vel
2"SP
2-1/2"SP
3"SP
3-1/2"SP
4"SP
4-1/2"SP
5"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
18000 20000 22000 24000 26000
1065 1184 1302 1420 1539
406 417 430 444 459
6.9 7.8 8.7 9.8 11.0
453 464 476 490
9.6 10.7 11.8 13.1
496 508 520
12.7 13.9 15.3
527 537 549
14.8 16.1 17.6
565 576
18.4 20.0
602
22.4
628
24.9
28000 30000 32000 34000 36000
1657 1775 1894 2012 2130
475 492 510 528 547
12.4 14.1 15.9 17.8 19.7
505 520 537 554 572
14.6 16.2 18.1 20.2 22.4
533 548 563 579 596
16.8 18.5 20.4 22.5 24.9
561 574 588 603 619
19.2 21.0 22.9 25.1 27.4
588 600 613 627 642
21.7 23.5 25.5 27.7 30.2
613 625 637 650 665
24.2 26.2 28.2 30.5 33.0
638 649 661 673 686
38000 40000 44000 48000 52000
2249 2367 2604 2840 3077
567 588 629 672 717
21.8 24.0 29.1 35.0 41.8
590 609 649 691 734
24.8 27.2 32.5 38.6 45.7
613 631 669 709 750
27.5 30.2 36.1 42.4 49.6
636 653 689 727 767
30.1 33.0 39.4 46.2 53.7
658 674 708 745 784
32.8 35.7 42.5 50.0 57.8
680 695 728 763 800
35.7 38.6 45.4 53.4 61.9
56000 60000 64000 68000 72000
3314 3551 3787 4024 4261
762 807 854 900 947
49.5 58.3 68.3 79.4 91.8
777 822 867 913 959
53.7 62.7 72.9 84.2 96.8
793 836 881 926 971
57.9 67.1 77.5 89.1 101.9
808 851 894 938 983
62.1 71.6 82.2 94.1 107.1
824 865 908 951 995
66.5 76.2 87.1 99.1 112.4
839 880 921 964 1007
76000 80000 85000
4497 4734 5030
995 1042 1102
105.6 120.8 141.9
1006 1053 1112
110.8 126.2 147.6
1017 1064 1122
116.1 131.8 153.4
1029 1074 1132
121.6 137.4 159.3
1040 1085 1142
127.0 143.1 165.3
1051 1096 1152
Volume O.Vel
7"SP
8"SP
9"SP
10"SP
11"SP
CFM
FPM
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
32000 34000 36000 38000 40000
1894 2012 2130 2249 2367
748 759 770 782 794
42.8 45.6 48.5 51.6 54.8
798 809 820 832
51.9 55.0 58.4 61.8
846 856 867
61.8 65.3 69.0
892 902
72.4 76.3
935
83.7
44000 48000 52000 56000 60000
2604 2840 3077 3314 3551
821 851 882 916 952
62.1 70.5 80.0 91.3 103.7
857 884 914 946 980
69.3 77.9 87.7 98.9 111.8
891 917 946 976 1008
76.9 85.7 95.8 107.0 119.9
924 949 976 1005 1036
84.6 93.7 104.1 115.6 128.5
956 980 1006 1033 1063
64000 68000 72000 76000 80000
3787 4024 4261 4497 4734
989 1027 1067 1107 1149
116.9 130.7 145.3 161.2 178.6
1015 1052 1091 1130 1170
126.1 141.1 156.7 173.1 190.9
1042 1077 1114 1152 1192
134.7 150.8 167.7 185.0 203.3
1068 1102 1138 1175 1213
143.2 159.8 177.8 196.7 215.9
1094 1127 1161 1197 1234
85000
5030
1202
202.5
1222
215.3
The BHP shown does not include belt drive losses.
5-1/2"SP
6"SP
6-1/2"SP
RPM
BHP
RPM
BHP
RPM
BHP
26.8 28.9 31.1 33.4 35.9
662 672 684 695 708
29.4 31.6 33.9 36.3 38.9
695 706 717 729
34.4 36.8 39.4 42.1
717 727 738 750
37.3 39.8 42.4 45.3
701 716 747 781 817
38.7 41.7 48.5 56.7 65.7
722 736 766 799 834
41.8 44.9 51.7 59.9 69.4
742 756 785 816 850
45.0 48.1 55.1 63.2 72.9
762 775 803 834 866
48.2 51.4 58.6 66.8 76.4
70.9 80.9 91.9 104.2 117.7
855 894 935 976 1019
75.3 85.6 96.9 109.3 123.2
870 909 948 989 1031
79.7 90.4 101.9 114.6 128.5
886 923 962 1002 1043
83.6 95.0 106.9 119.9 134.1
901 937 975 1014 1055
87.5 99.5 112.0 125.2 139.6
132.7 148.9 171.4
1062 1106 1162
138.2 154.8 177.4
1074 1117 1172
144.0 160.6 183.7
1085 1128 1182
149.6 166.6 189.9
1096 1138 1192
155.5 172.5 196.1
12"SP
14"SP
16"SP
18"SP
19"SP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
RPM
BHP
92.5 102.1 112.6 124.3 137.6
988 1010 1035 1061 1090
100.5 110.5 121.4 133.3 146.9
1049 1068 1091 1115 1141
117.1 127.8 139.5 152.2 165.9
1124 1145 1167 1192
145.6 158.2 171.5 186.1
1196 1218
177.1 191.4
1222
186.9
152.2 168.8 187.4 207.3 228.1
1119 1151 1184 1219
161.6 178.2 196.9 217.5
1169 1199 1230
181.3 198.3 216.8
1218
201.7
The performance shown is for fan with outlet duct.
23
Dimensions
Size 1225 through 5425 Size 1225 through 4450
Arrangement 1 & 9 ARRANGEMENT 1
L
G
ARRANGEMENT 9
Q
K
Q
U
U H
O.D.
F
Q D
D
W
B
M
C
C
E
E
P
FRONT ELEVATION
X
H
Q
P
A Q
Q
M
Class I SISW Class II SISW
DRIVE SIDE ELEVATION
B
M
DRIVE SIDE ELEVATION
CCW90 TH SHOWN CW TH OPPOSITE
W P
M P
FRONT ELEVATION
CW90 TH SHOWN CCW TH OPPOSITE
ROTATION AND DISCHARGE POSITIONS (DRIVE SIDE)
CW90
TH
CW360
UB
CW270
BH
CW180
DB
CCW90
TH
CCW360
UB
CCW270
BH
CCW180
DB
DIMENSIONS - INCH FAN SIZE
A
B
C
D
E
F
G
H
K
L
M
P
Q
1225 1350 1500 1650 1825 2000 2225 2450 2700 3000 3300
11-3/4 12-15/16 14-3/8 15-13/16 17-1/2 19-3/16 21-3/8 23-1/2 25-7/8 28-3/4 31-5/8
10-3/8 11-1/4 12-3/8 13-3/8 14-5/8 15-7/8 18-1/4 19-3/4 21-1/2 24-1/8 25-5/8
11-3/8 12-1/2 13-7/8 15-3/8 16-7/8 18-1/2 20-1/2 22-1/2 24-3/4 27-1/2 30-1/8
10 10-7/8 12 13-1/4 14-5/8 16 17-3/4 19-1/2 21-3/8 23-3/4 26-1/8
21-3/4 23-3/4 26-1/4 28-3/4 31-1/2 34-3/8 38-3/4 42-1/4 46-1/4 51-5/8 55-3/4
15-7/8 17-1/8 18-5/8 20-1/8 21-7/8 24-1/8 26-3/8 28-5/8 31-1/8 34-5/8 37-5/8
6-3/8 6-15/16 7-9/16 8-1/8 8-13/16 10 10-15/16 11-13/16 12-13/16 14-1/2 15-11/16
22-7/8 25 27-5/8 30-5/8 33-5/8 36-7/8 40-5/8 44-1/2 48-7/8 54-5/8 59-7/8
2-1/2 3 3 4 4 4 4-1/2 4-1/2 4-1/2 5 5
17-1/4 21-3/4 22-1/2 25 25-3/4 28-3/4 30-1/4 33 34-1/2 38-1/2 39-3/4
1-1/4 1-1/4 1-1/4 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 1-1/2 2 2
5-19/32 6-3/32 6-11/16 7-13/32 8-3/32 8-25/32 9-11/16 10-9/16 11-9/16 13 14-3/16
6-7/8 7 8 9 10 11 12-1/4 13-1/2 14-3/4 16 17-1/2
3650 4025 4450 4900 5425
35 38-5/8 42-11/16 47 52
28-1/8 30-3/4 33-3/4 37 40-3/4
33-1/2 36-7/8 40-3/4 44-3/4 49-3/8
29 32-1/8 35-1/4 38-1/4 42-7/8
61-5/8 67-5/8 74-1/2 81-3/4 90-1/8
41-1/8 40-7/8 45-1/8 49-5/8 55
17-1/16 26-1/8 27-7/8 29-11/16 31-3/4
66 72-3/4 80-1/2 87-3/4 97-1/2
6 6 6 5 5-1/2
44-3/4 46-1/2 52-1/2 52 54-3/4
2 2 2-1/2 2-1/2 2-1/2
15-9/16 17-1/32 18-31/32 20-3/4 22-27/32
19 21 24 27 30
12-13/16 14-1/8 15-11/16 17-1/4
SHAFT DIA. CLASS I CLASS II 15/16 1-3/16 1-3/16 1-7/16 1-3/16 1-7/16 1-3/16 1-7/16
1/4 1/4 1/4 1/4
14-7/16 15-13/16 17-5/8 19-3/8 21-3/8 23-3/4 26-1/8 28-7/8
19-1/16 20-15/16 23-1/4 25-5/8 28-1/4 31-3/8 34-1/2 38-3/16
1-3/16 1-7/16 1-7/16 1-7/16 1-11/16 1-11/16 1-15/16 1-15/16
1-7/16 1-11/16 1-11/16 1-11/16 2-3/16 2-3/16 2-3/16 2-7/16
1/4 x 1/8 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 1/2 x 1/4 1/2 x 1/4
3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 3/8 x 3/16 1/2 x 1/4 1/2 x 1/4 1/2 x 1/4 5/8 x 5/16
256 256 286 286 286 286 286 286
31-13/16 35-3/16 38-3/4 42-15/16
42-1/8 46-9/16 51-1/4 56-3/4
1-15/16 1-15/16 2-3/16 2-3/16
2-3/16 2-7/16 N/A N/A
1/2 1/2 1/2 1/2
1/2 x 1/4 5/8 x 5/16 N/A N/A
286 286 286 286
FAN SIZE
S
1225 1350 1500 1650
7/16 7/16 7/16 9/16
12-7/8 14-1/8 15-5/8 17-3/8
9-11/16 10-11/16 11-7/8 13-1/16
1825 2000 2225 2450 2700 3000 3300 3650
9/16 9/16 9/16 9/16 9/16 9/16 9/16 9/16
19 20-7/8 22-7/8 25 27-1/2 30-7/8 33-3/4 37
4025 4450 4900 5425
9/16 9/16 9/16 9/16
40-5/8 45-1/4 49-1/2 54-5/8
U
W
X
DO NOT USE FOR CONSTRUCTION UNLESS CERTIFIED. 24
KEYWAY SIZE CLASS I CLASS II x 1/8 1/4 x 1/8 x 1/8 3/8 x 3/16 x 1/8 3/8 x 3/16 x 1/8 3/8 x 3/16
x 1/4 x 1/4 x 1/4 x 1/4
MAX. FRAME ARR. 9 215 215 215 256
Dimensions
Size 4900 Through 5425 Size 2450 Through 5425
Arrangement 1 & 9 FAN SIZE
DISC POS'N
CCW90 TH SHOWN CW90 TH OPPOSITE
DB TH
2450
UB
E G
L
B
BH
C
DB
K
TH
2700 A
UB BH
U
DB
X O.D.
H
F
TH
3000
UB BH
D
DB TH
3300 M
W
J
UB BH
T
DB
ARRANGEMENT 1 SIDE ELEVATION (DRIVE SIDE)
FRONT ELEVATION
TH
3650
UB BH DB
E B
8 HOLES 9/16" DIA.
TH
4025
C
UB BH DB
U Q
S
Q
S
TH
4450
UB BH
H
DB TH
4900
D
UB BH
P
P
N
DB
T
R
TH
5425
UB
ARRANGEMENT 9 SIDE ELEVATION (DRIVE SIDE)
FOUNDATION (PLAN)
BH
Class II SISW Class III SISW
MEAN CENTER DISTANCE
182-4 ± 3/4" 17.3 17.2 18.3 19.2 -
213-5 ± 1" 18.9 19.8 18.8 18.7 19.9 20.9 20.3 20.2 21.5 22.8 -
254-6 284-6 324-6 364-5 404-5 ± 1" ± 1-1/4" ± 1-1/2" ± 1-3/4" ± 2" 20.7 21.7 22.2 21.1 20.9 22.3 22.8 23.5 24.0 25.0 21.9 22.4 22.1 22.5 23.6 24.0 24.9 24.9 25.4 26.3 26.9 23.1 23.5 24.4 23.4 23.8 24.7 25.1 25.5 26.4 27.0 28.0 26.5 26.9 27.7 28.3 29.2 23.9 24.8 25.4 24.4 25.2 25.8 26.6 27.4 28.0 28.8 27.7 28.5 29.1 30.0 27.2 28.1 28.6 29.5 27.8 28.6 29.2 30.1 29.8 30.6 31.2 32.1 31.6 32.3 32.9 33.7 28.7 29.4 30.0 30.8 29.2 29.9 30.4 31.3 31.6 32.4 32.9 33.7 33.5 34.2 34.7 35.5 30.8 31.5 32.0 32.8 31.6 32.3 32.8 33.6 34.1 34.8 35.3 36.0 36.2 36.9 37.3 38.0
ROTATION AND DISCHARGE POSITIONS (DRIVE SIDE)
CW90
TH
CW360
UB
CW270
BH
CW180
DB
CCW90
TH
CCW360
UB
CCW270
BH
CCW180
DB
DIMENSIONS - INCHES FAN SIZE
A
B
C
D
E
F
G
H
2450 2700 3000 3300 3650 4025 4450
23-1/2 25-7/8 28-3/4 31-5/8 35 38-5/8 42-11/16
19-3/4 21-1/2 24-1/8 25-5/8 28-1/8 30-3/4 33-3/4
22-1/2 24-3/4 27-1/2 30-1/8 33-1/2 36-7/8 40-3/4
19-1/2 21-3/8 23-3/4 26-1/8 29 32-1/8 35-1/4
42-1/4 46-1/4 51-5/8 55-3/4 61-5/8 67-5/8 74-1/2
28-5/8 31-1/8 34-5/8 37-5/8 41-1/8 40-7/8 45-1/8
11-13/16 12-13/16 14-1/2 15-11/16 17-1/16 26-1/8 27-7/8
44-1/2 48-7/8 54-5/8 59-7/8 66 72-3/4 80-1/2
27-1/2 29-1/2 30-1/2 31-1/2 34 35 35
4900 5425
47 52
37 40-3/4
44-3/4 49-3/8
38-1/4 42-7/8
81-3/4 90-1/8
49-5/8 55
29-11/16 31-3/4
87-3/4 97-1/2
35 35
FAN SIZE 2450 2700
P 10-9/16 11-9/16
K
J
Q
R
S
T
U
W
X
13-1/2 14-3/4
21-5/8 20-5/8
13-1/2 14-3/4
29-1/4 31-3/4
25 27-1/2
19-3/8 21-3/8
25-5/8 28-1/4
L
CLASS II n/a n/a n/a n/a n/a n/a n/a
CLASS III 5 6 6 7 7 7 8
7 7
8 8
n/a n/a
N
CLASS III 43 47-1/2 49-1/2 53 56-1/2 59 61-1/2
1-1/2 1-1/2 2 2 2 2 2-1/2
3-1/2 5 5 5 5 5 5
62 64-1/2
63 65-1/2
2-1/2 2-1/2
5 5
SHAFT DIA. CLASS II
M
CLASS II n/a n/a n/a n/a n/a n/a n/a
KEYWAY
CLASS III 2-7/16 2-7/16
CLASS II n/a n/a
CLASS III 5/8 x 5/16 5/8 x 5/16
3000
13
16
22
16
34-1/4
30-7/8
23-3/4
31-3/8
n/a
2-11/16
n/a
5/8 x 5/16
3300
14-3/16
17-1/2
23
17-1/2
37-1/4
33-3/4
26-1/8
34-1/2
n/a
2-11/16
n/a
5/8 x 5/16
3650 4025
15-9/16 17-1/32
19 21
25 26
19 21
40-1/4 44-1/4
37 40-5/8
28-7/8 31-13/16
38-3/16 42-1/8
n/a n/a
2-15/16 2-15/16
n/a n/a
3/4 x 3/8 3/4 x 3/8
4450
18-31/32
24
25
24
50-1/4
45-1/4
35-3/16
46-9/16
n/a
3-3/16
n/a
3/4 x 3/8
4900
20-3/4
27
25
27
56-1/4
49-1/2
38-3/4
51-1/4
2-11/16
3-3/16
5/8 x 5/16
3/4 x 3/8
5425
22-27/32
30
25
30
62-1/4
54-5/8
42-15/16
56-3/4
2-15/16
3-7/16
3/4 x 3/8
7/8 x 7/16
DO NOT USE FOR CONSTRUCTION UNLESS CERTIFIED. 25
Dimensions
Size 1225 Through 5425 Size 1225 Through 4450
Arrangement 9T and 9S
Class I SISW Class II SISW
Mean Drive Center +/-1.5" "U" or "T" Frames FAN SIZE
MOTOR FRAME
TH-TOP DB-CCW 9L DB-CW 9R UB-CCW 9R UB-CW 9L
BH-TOP DB-CCW 9R DB-CW 9L UB-CCW 9L UB-CW 9R
DB-TOP TH-CCW 9R TH-CW 9L BH-CCW 9L BH-CW 9R
FAN SIZE
MOTOR FRAME
BH-TOP DB-CCW 9R DB-CW 9L UB-CCW 9L UB-CW 9R
DB-TOP TH-CCW 9R TH-CW 9L BH-CCW 9L BH-CW 9R
1225
48 56, 143-5 182-4 213-5
24.9 25.4 26.4 27.1
21.9 22.4 23.4 24.1
23.4 23.9 24.9 25.8
2700
56, 143-5 182-4 213-5 254-6 284-6
40.5 41.5 42.3 43.3 44.5
34.4 35.4 36.1 37.1 38.4
37.8 38.8 39.5 40.5 41.8
1350
48 56, 143-5 182-4 213-5
26.1 26.6 27.6 28.4
22.9 23.4 24.4 25.1
24.5 25.0 26.0 26.8
3000
56, 143-5 182-4 213-5 254-6 284-6
43.9 44.9 45.6 46.6 47.9
36.8 37.8 38.5 39.5 40.8
40.5 41.5 42.3 43.3 44.5
1500
48 56, 143-5 182-4 213-5
27.6 28.1 29.1 29.9
24.0 24.5 25.5 26.3
25.9 26.4 27.4 28.1
3300
143-5 182-4 213-5 254-6 284-6
46.8 47.8 48.5 49.5 50.8
39.1 40.1 40.9 41.9 43.1
43.1 44.1 44.9 45.9 47.1
1650
56, 143-5 182-4 213-5 254-6
30.4 31.4 32.1 33.1
26.3 27.3 28.0 29.0
28.4 29.4 30.1 31.1
3650
143-5 182-4 213-5 254-6 284-6
50.0 51.0 51.8 52.8 54.0
42.0 43.0 43.8 44.8 46.0
46.5 47.5 48.3 49.3 50.5
1825
56, 143-5 182-4 213-5 254-6
32.0 33.0 33.8 34.8
27.6 28.6 29.4 30.4
29.9 30.9 31.6 32.6
4025
143-5 182-4 213-5 254-6 284-6
53.6 54.6 55.4 56.4 57.6
44.9 45.9 46.6 47.6 48.9
49.9 50.9 51.6 52.6 53.9
2000
56, 143-5 182-4 213-5 254-6
33.9 34.9 35.6 36.6
29.0 30.0 30.8 31.8
31.5 32.5 33.3 34.3
4450
143-5 182-4 213-5 254-6 284-6
58.3 59.3 60.0 61.0 62.3
48.3 49.3 50.0 51.0 52.3
53.8 54.8 55.5 56.5 57.8
2225
56, 143-5 182-4 213-5 254-6 284-6
35.9 36.9 37.6 38.6 39.9
30.8 31.8 32.5 33.5 34.8
33.5 34.5 35.3 36.3 37.5
4900
143-5 182-4 213-5 254-6 284-6
62.5 63.5 64.3 65.3 66.5
51.3 52.3 53.0 54.0 55.3
57.8 58.8 59.5 60.5 61.8
2450
56, 143-5 182-4 213-5 254-6 284-6
38.0 39.0 39.8 40.8 42.0
32.5 33.5 34.3 35.3 36.5
35.5 36.5 37.3 38.3 39.5
5425
143-5 182-4 215-5 254-6 284-6
67.6 68.6 69.4 70.4 71.6
55.9 56.9 57.6 58.6 59.9
62.4 63.4 64.1 65.1 66.4
Standard multipunch bases: 1225 to 1500 is 48-215T, 1650 to 5425 is 56-256T Optional multipunch base: 2225 to 5425 is 284-6T
26
TH-TOP DB-CCW 9L DB-CW 9R UB-CCW 9R UB-CW 9L
Sound Data
Northern Blower Inc. certifies that the product shown herein is licensed to bear the AMCA Seal. Fan Sound Ratings are based on tests and procedures in accordance with AMCA Publication 211 and AMCA Publication 311, and comply with the requirements of the AMCA Certified Ratings Program. Fan sound data testing was conducted according to AMCA Standard 300 in an AMCA Registered Laboratory. The Certified Sound Ratings Seal provides increased assurance that the published sound ratings are both reliable and accurate.
Sound data was obtained in accordance with AMCA Standard 300, Reverberant Room Method for Sound Testing of Fans, published in accordance with AMCA Standard 301, Methods for Calculating Fan Sound Ratings from Laboratory Test data. Upon request Northern Blower will provide Sound Level Ratings for any fan selection from this catalogue. Refer also to the Northern Blower Sound Bulletin.
Fan Geometry
Designations for Rotation and Discharge of Centrifugal Fans
Notes: 1) Direction of rotation is determined from the drive side of the fan. 2) On single inlet fans, the drive side is always considered as the side opposite the fan inlet. 3) On double inlet fans with drives on both sides, the drive side is that with the higher powered drive unit.
4) Direction of discharge is determined in accordance with the diagrams. Angle of discharge is referred to the vertical axis of the fan and designated in degrees from such standard reference axis. Angle of discharge may be any intermediate angle as required. 5) For a fan inverted for ceiling suspension, or side wall mounting, the direction of rotation and discharge is determined when the fan is resting on the floor.
Reprinted by permission of the Air Movement & Control Association, Inc., 30 West University Drive, Arlington Heights, IL, 60004-1893, U.S.A.
27
Centrifugal Fan Arrangements
SW - Single Width SI - Single Inlet
DW - Double Width DI - Double Inlet
1 SWSI For belt drive or direct connection. Impeller overhung. Two bearings on base.
1 SWSI c/w BOX For belt drive or direct connection. Impeller overhung. Two bearings on base. Inlet box may be self-supporting.
2 SWSI For belt drive or d irect connection. Impeller overhung. Bearings in bracket supported by fan housing.
3 SWSI c/w BOX For belt drive or direct connection. One bearing on each side and supported by fan housing and inlet box. Shaft extending through inlet box.
3 SWSI c/w IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side supported by independent pedestals.
3 SWSI c/w BOX & IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side and supported by independent pedestals with shaft extending through inlet box.
3 DWDI For belt drive or direct connection. One bearing on each side and supported by fan housing.
3 DWDI c/w BOXES For belt drive or direct connection. One bearing on each side and supported by inlet boxes. Shaft extending through inlet boxes.
3 DWDI c/w IND. PED. For belt drive or direct connection. Housing is self-supporting. One bearing on each side and supported by independent pedestals.
3 DWDI c/w BOXES & IND. PED For belt drive or direct connection. Housing is self-supporting. One bearing on each side supported by independent pedestals with shaft extending through inlet box.
4 SWSI For direct drive. Impeller overhung on prime mover shaft. No bearings on fan. Prime mover base mounted or integrally directly connected.
7 SWSI For belt drive or direct connection. Arrangement 3 plus base for prime mover.
7 SWSI c/w BOX For belt drive or direct connection. Arrangement 3 plus base for prime mover. Shaft extending through inlet box.
7 DWDI For belt drive or direct connection. Arrangement 3 plus base for prime mover.
7 DWDI c/w BOXES For belt drive or direct connection. Arrangement 3 plus base for prime mover. Shaft extending through inlet box.
8 SWSI For belt drive or direct connection. Arrangement 1 plus extended base for prime mover.
8 SWSI c/w BOX For belt drive or direct connection. Arrangement 1 plus extended base for prime mover.
9 SWSI For belt drive. Impeller overhung, two bearings, with prime mover outside base.
10 SWSI For belt drive. Impeller overhung, two bearings, with prime mover inside base.
3 SWSI For belt drive or direct connection. One bearing on each side and supported by fan housing.
Reprinted by permission of the Air Movement & Control Association, Inc., 30 West University Drive, Arlington Heights, IL, 60004-1893, U.S.A. 28
Notes
29
CML Northern Blower Inc. 901 Regent Avenue West Winnipeg, Manitoba Canada R2C 2Z8 204.222.4216 204.222.7601 [email protected] www.northernblower.com
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