Pneumatic & Hydraulic For Intermediate

Pneumatic & Hydraulic :Suthirak Sumran










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 (liquids and gases)

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Control valve Diaphram Springs Actuator Valve stem movement Valve plug Valve


-)  Hydraulic


-)  AMADA


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PC'C'


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 (Accessories)

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%68!%ก (pneumatics) 8Bก7CD?"EFกGก 9$%8 8 HI 8 >ก  JB 98>K8GกDL8JMNJ E7!< ก8BI9GK 768 8 J N 8 HI ก8$$ JMNกA97>K8>กJ E7!< ก8

Bก9: 3 59E? ก 7> 2.1 %68!%ก$!K (low pressure pneumatics) A % ก ,i * ก%    (fluidics - fluid logic)  "() *  #
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P   ' , ,
, (popet valve)

12

1 2

12 12

1 1

2

P   ' (# ) $ (Spool valve)



This 5/2 valve has a spool fitted with disc seals

4

2

14

12 1 5

14

12 5

4

1

2

3

3



This 5/2 valve has a spool fitted with disc seals

4

2

14

12 1

5

14

12 5

4

1

2

3

3

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  Pabs = Patm + Pg

  Gauge Bars

0

1

2

3

4

5

6

7

8

Absolute Bars

1

2

3

4

5

6

7

8

9

PISG

0

14.5

29.0

43.5

58.0

72.5

87.0

PSI

14.5

29.0

43.5

58.0

72.5

87.0

101.5 116.0 130.5

101.5 116.0

# 

t Pascal : Pa : N/m2 10 kg = ~ 100 N t Bar : Kg/cm2 10 Bar = 10 kg/cm2 t PSI : Pound per Square inches. 1 Bar = ~ 14.5 PSI

ก #

1 Bar 1 Bar 1 Bar 1 Bar 1 Bar

= ~ 14.5 PSI = ~ 401.46 in.wg = 105 Pa = 100 kPa = 0.1 MPa = 0.1 N/mm2 = 1 ATM

%&  ก?

t 1. %& A$ (Temperature), T t 2.  (Pressure), P t 3.  (Volume), V 

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,-="() 

D>b?GK = 3.14 x D 2 = 3.14 x R2 4 D

D>b?GK = 3.14 x (D 2- d2) = 3.14 x(R2-r2) 4 d

 ,   ,-="() 4 Bars

Area = 3.14 xR2 = 3.14 x(1 cm)2 = 3.14 cm2 D= 2 cm.

 = 4 bars x 3.14 cm2 = 12.56 kg

12.56 kg

,-="()  ก ก$ $ก5Aก<A(%b6)

D>b?GK N!$ก5Aก<A ()

1

0.785

1 1/2

1.77

2

3.14

2 1/2

4.91

3

7.07

3 1/2

9.62

4

12.6

4 1/2

15.9

5

19.6

5 1/2

23.8

6

28.3

6 1/2

33.2

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234(6ก&&# ) = 9:; '()% -4x/1/1: / 231

(1)

A1'()  

  

9:; '()ก/B#ก+B (4 3;) /1/1: ( 3;)

1 in (inch) = 25.4 mm = 2.54 cm = 0.0254 m = 0.08333 ft 1 in2 = 6.452 cm2 = 6.452x10-4 m2 = 6.944x10-3 ft2 1 gal (US) = 3.785x10-3 m3 = 3.785 dm3 (liter) = 0.13368 ft3





!6  ก ก$ 4" ,-="()  12.57  = - ก ก$ 30 =  * 
"#   = ,-= "()  x - / 231 = 12.6 x 30 / 231 = 1.63 ก 

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.#?$'ก ก ก$(Diameter) t
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@ก =>  *  กก#
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"#ก t => = กก ก$ ก#  (Pressure) t    =>  *ก ก$ h#+= ก ก+= t => (P กก) ก#

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