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DHEC Preinsulated pipe end cap
Product features The preinsulated pipe end cap is a heatshrinkable part, manufactured from a molecular crosslinked polyolefin. It is designed to seal the annulus between carrier and outer pipe. The cap is coated with a specially developed adhesive inside both outlets. During installation, one outlet of the cap shrinks down onto the pipe jacket while the other outlet recovers onto the service pipe. During this process, the adhesive forms a permanent seal between the service pipe and the outer jacket.
Internal protection of insulation Factory installed, DHEC end caps protect the integrity of the thermal insulation during pipe transportation and storage. On installed preinsulated pipe systems the end caps prevent water vapour migration across the joint in the event of a pipe leak or insulation jacket failure. They confine insulation degradation to one pipe length or the pipe area. Versatility DHEC end caps are provided in several pipe sizes and/or insulation thicknesses to accommodate dimension variations of pipe and insulation.
Availability They are available from stock in a range of standard sizes covering most existing preinsulated pipe sizes. Economical DHEC end caps can be installed in minutes. Once in service, they prevent degradation of insulation material over long lengths of the pipe network, reducing repair costs.
Material properties A. Backing material Tensile strength Ultimate elongation Thermal aging Ultimate elongation Low temperature flexibility Water absorption B. Coating material Peel strength Shear strength
Test method ISO R527 ISO R527 ISO 188 ISO R527 ASTM D-3111 ISO 62
Conditions 23°C (50 mm/min) 23°C (50 mm/min) 7 days at 150°C 23°C (50 mm/min) 25 mm mandrel 24h at 23°C
Typical value 20 MPa 400 %
DIN 30672 ISO 4587
23°C (50 mm/min) 23°C (50 mm/min)
30 N/cm 70 N/cm2
350 % -70 °C < 0.1 %
For additional information regarding the physical, chemical and functional properties of DHEC end caps, consult Raychem specification RUD 5167 or contact your local sales engineer. Application table
A. End cap with one outlet
Jacket pipe O.D. (mm) Media pipe 63 OD (mm) 64 12 15 17 2000 21 2000 27 34 42 48 54 60 70 76 89 108 114 133 139
75
90 93 2000 2000 2000 2060 2000 2060 2000 2100 2100
110
2060 2060 2200 2200 2200 2300
Jacket pipe O.D. (mm) 125 128
2060 2060 2200 2200 2200 2300 2300 2400
140
2300 2300 2300 2300 2300 2400 2400 2400
160 163
180 186
2340 2340 2340 2340 2500 2500 2500 2500
200
225
Media pipe OD (mm) 139 159 168 193 219 245 273 324 355
250
266
2700 2700 2700
2700 2700 2700 2700 2800 2800 2800 2800 2800 2800 2800 2800 2900 2800 2800 2900 2900 2900 3000 3000 3000
2500 2500 2500 2500 2600 2600 2600 2630 2600 2600 2630 2600 2630 2630 2630
280
297
315
326
334
355
400
450
Ordering information Example DHEC-2200 size code 2 openings
B. End cap with double outlet
2
12 15 18 20
12 15 18 20
22
12 15 22
160 163
180 186
200
225
Media pipe (mm)
1
2
32 (35)
18 22 32 (35)
3200 42 (40)
28
15 18 22 28
3250 3350-P604
3250-P604
140
160 163
180 186
200
225
3300 3350-02
3280
3300 3350-02
3350-03
3350-01 50
32 50
54
28 35 43
3250 3250-P604 3280
22 28 42 (40)
Jacket Pipe OD (mm) 90 110 125 128
3350-01
3280
3350-03 3280
3360-01 3350-03
Ordering information Example DHEC-3280 size code 3 openings
Raychem and DHEC are trademarks of Raychem Corporation
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, Raychem makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. Raychem’s obligations shall only be as set forth in Raychem’s Standard Terms and Conditions of Sale for this product and in no case will Raychem be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of Raychem products should make their own evaluation to determine the suitability of each such product for the specific application. WORLDWIDE Raychem Corporation 300 Constitution Drive Menlo Park CA 94025-1164 Tel. (800) 241-1929 Fax (415) 361-5502
Belgium Raychem NV Diestsesteenweg 692 3010 Kessel-Lo Tel. (32) 16 351 231 Fax (32) 16 351 694 NORTH AMERICA California Tel. (800) 241-1929 Fax (415) 361-5502
EUROPE Belgium Tel. (32) 16 351 231 Fax (32) 16 351 694 SOUTH AMERICA Argentina Tel. (54) 1/394-5150 Fax (54) 1/326-9985
Mexico Tel. (525) 260-8896 Fax (525) 260-3310
India Tel. (91) 11 332-9861 Fax (91) 11 335-4250
ASIA Singapore Tel. (65) 278-0001 Fax (65) 278-9502
Korea Tel. (82) 2/557-7752 Fax (85) 2/553-6615
PCN: 777929-000
1
140
© Raychem Corporation DHEC-002/DS/7-04/95
Media pipe (mm)
Jacket Pipe OD (mm) 90 110 125 128
Product features The preinsulated pipe end cap is a heatshrinkable part, manufactured from a molecular crosslinked polyolefin. It is designed to seal the annulus between carrier and outer pipe. The cap is coated with a specially developed adhesive inside both outlets. During installation, one outlet of the cap shrinks down onto the pipe jacket while the other outlet recovers onto the service pipe. During this process, the adhesive forms a permanent seal between the service pipe and the outer jacket.
Internal protection of insulation Factory installed, DHEC end caps protect the integrity of the thermal insulation during pipe transportation and storage. On installed preinsulated pipe systems the end caps prevent water vapour migration across the joint in the event of a pipe leak or insulation jacket failure. They confine insulation degradation to one pipe length or the pipe area. Versatility DHEC end caps are provided in several pipe sizes and/or insulation thicknesses to accommodate dimension variations of pipe and insulation.
Availability They are available from stock in a range of standard sizes covering most existing preinsulated pipe sizes. Economical DHEC end caps can be installed in minutes. Once in service, they prevent degradation of insulation material over long lengths of the pipe network, reducing repair costs.
Material properties A. Backing material Tensile strength Ultimate elongation Thermal aging Ultimate elongation Low temperature flexibility Water absorption B. Coating material Peel strength Shear strength
Test method ISO R527 ISO R527 ISO 188 ISO R527 ASTM D-3111 ISO 62
Conditions 23°C (50 mm/min) 23°C (50 mm/min) 7 days at 150°C 23°C (50 mm/min) 25 mm mandrel 24h at 23°C
Typical value 20 MPa 400 %
DIN 30672 ISO 4587
23°C (50 mm/min) 23°C (50 mm/min)
30 N/cm 70 N/cm2
350 % -70 °C < 0.1 %
For additional information regarding the physical, chemical and functional properties of DHEC end caps, consult Raychem specification RUD 5167 or contact your local sales engineer. Application table
A. End cap with one outlet
Jacket pipe O.D. (mm) Media pipe 63 OD (mm) 64 12 15 17 2000 21 2000 27 34 42 48 54 60 70 76 89 108 114 133 139
75
90 93 2000 2000 2000 2060 2000 2060 2000 2100 2100
110
2060 2060 2200 2200 2200 2300
Jacket pipe O.D. (mm) 125 128
2060 2060 2200 2200 2200 2300 2300 2400
140
2300 2300 2300 2300 2300 2400 2400 2400
160 163
180 186
2340 2340 2340 2340 2500 2500 2500 2500
200
225
Media pipe OD (mm) 139 159 168 193 219 245 273 324 355
250
266
2700 2700 2700
2700 2700 2700 2700 2800 2800 2800 2800 2800 2800 2800 2800 2900 2800 2800 2900 2900 2900 3000 3000 3000
2500 2500 2500 2500 2600 2600 2600 2630 2600 2600 2630 2600 2630 2630 2630
280
297
315
326
334
355
400
450
Ordering information Example DHEC-2200 size code 2 openings
B. End cap with double outlet
2
12 15 18 20
12 15 18 20
22
12 15 22
160 163
180 186
200
225
Media pipe (mm)
1
2
32 (35)
18 22 32 (35)
3200 42 (40)
28
15 18 22 28
3250 3350-P604
3250-P604
140
160 163
180 186
200
225
3300 3350-02
3280
3300 3350-02
3350-03
3350-01 50
32 50
54
28 35 43
3250 3250-P604 3280
22 28 42 (40)
Jacket Pipe OD (mm) 90 110 125 128
3350-01
3280
3350-03 3280
3360-01 3350-03
Ordering information Example DHEC-3280 size code 3 openings
Raychem and DHEC are trademarks of Raychem Corporation
The information given herein, including drawings, illustrations and schematics which are intended for illustration purposes only, is believed to be reliable. However, Raychem makes no warranties as to its accuracy or completeness and disclaims any liability in connection with its use. Raychem’s obligations shall only be as set forth in Raychem’s Standard Terms and Conditions of Sale for this product and in no case will Raychem be liable for any incidental, indirect or consequential damages arising out of the sale, resale, use or misuse of the product. Users of Raychem products should make their own evaluation to determine the suitability of each such product for the specific application. WORLDWIDE Raychem Corporation 300 Constitution Drive Menlo Park CA 94025-1164 Tel. (800) 241-1929 Fax (415) 361-5502
Belgium Raychem NV Diestsesteenweg 692 3010 Kessel-Lo Tel. (32) 16 351 231 Fax (32) 16 351 694 NORTH AMERICA California Tel. (800) 241-1929 Fax (415) 361-5502
EUROPE Belgium Tel. (32) 16 351 231 Fax (32) 16 351 694 SOUTH AMERICA Argentina Tel. (54) 1/394-5150 Fax (54) 1/326-9985
Mexico Tel. (525) 260-8896 Fax (525) 260-3310
India Tel. (91) 11 332-9861 Fax (91) 11 335-4250
ASIA Singapore Tel. (65) 278-0001 Fax (65) 278-9502
Korea Tel. (82) 2/557-7752 Fax (85) 2/553-6615
PCN: 777929-000
1
140
© Raychem Corporation DHEC-002/DS/7-04/95
Media pipe (mm)
Jacket Pipe OD (mm) 90 110 125 128
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