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German Standard Piston Check Valve , DIN 3356 Flexible Graphite Lift Type Check Valve

German Standard Piston Check Valve , DIN 3356 Flexible Graphite Lift Type Check Valve

Overview
Simply put, a check valve allows flow in one direction and automatically prevents back flow (reverse flow) when fluid in the line reverses direction. They are one of the few self-automated valves that do not require assistance to open and close. Unlike other valves, they continue to work even if the plant facility loses air, electricity, or the human being that might manually cycle them.
Product Details



Standard Material Specifications

NO.

Part Name

CS to ASTM

AS to ASTM

SS to ASTM

Type A105

Type F22

Type F304(L)

Type F316(L)

1

Body

A105

A182 F22

A182 F304(L)

A182 F316(L)

2

Piston Disc

A276 410

A276 304

A276 304(L)

A276 316(L)

3

Gasket

Corrugated SS + graphite

SS + PTFE

4

Bonnet

A105

A182 F22

A182 F304 L

A182 F316(L)

5

Nameplate

SS

6

Bolt

A193 B7

A193 B16

A193 B8M

A193 B8M

7

Ball

A182 F304

A182 F304

A182 F304

A182 F304

Suitable Medium

W.O.G.etc

W.O.G.etc

HNO3CH3OOH etc

Suitable Temperature

-29℃ - 425

-29℃ - 550

-29℃ - 180

Note: Other materials are available upon request.


Dimensions (mm) and Weights (Kg)

NPS

Conv.

3/8

1/2

3/4

1

1-1/4

1-1/2

2

Full


3/4

1/2

3/4

1

1/4

1-1/2

L

79

79

92

111

120

152

172

H

61

61

65

79

95

103

118

Weights

Bolted

1.4

1.2

1.5

3.1

3.9

5.6

8.9

Welded

1.1

1.0

1.2

2.9

3.3

4.9

8.1



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