Valve Catalogue » Pressure Relief Valves » Fig. 160 Pressure Relief Valve

Technical Information Fig. 160

The Fig. 160 range of Relief Valves are of stainless steel construction and suitable for relieving excess pressures of liquids and gases where high discharge rates are not required. The stainless steel construction makes them ideal for use with a wide range of aggressive chemicals and gases.

The valve can be supplied with a sealing dome on the adjusting screw (Fig. 160-2) to contain any hazardous products.

Pressure adjustment is made by slackening the locknut on the adjusting screw, and rotating it clockwise to increase or anti-clockwise to decrease the blow off pressure.

Dimensions (mm)

Valve Size (mm)

10

15

20

25

32

40

50

A

46

56

74

78

 80

 92

 

B

74

105

131

151

 143

 159

 

C

21

27

39

42

 45

 49

 

Mass/kg

0.35

0.5

1

1.5

 2

  3 

 

 

Specifications:

Connections:  10 - 25mm BSP or NPT
Adjustable ranges:   0 - 120 kPa; 200 - 700 kPa;
500 - 1700 kPa; higher pressure range available on application
Temperature range:   Nitrile seals: -50ºC - 125ºC
Viton seals: -40ºC - 225ºC

Materials:

Item

Description

Material

8

Gasket ‘O’ Ring

Buna N

7

Adjusting Screw & Locknut

SS304

6

Spring

SS304

5

Spring Pad - Upper

SS316

4

Spring Pad - Lower

SS316

3

Valve Plug

SS420C

2

Valve Body

SS316

1

Valve Seat

SS316