Product Main

Specifications


Main parts and materials: 

Parts name

                         material

Body,Bonnet disc 

A216WCB

A352 LCB;

A217 WC6;

A217 WC9;

A217 WC5;

A351 CF8

A351 CF8M

A351 CF3

A351 CF3M

Arm pin 

A182 F6

A182 F304

A182 F316

A182 F304L

A182 F316L

Seat ring 

 A105+13Cr;A105+STL;A182 304;A182 316

Disc ring 

13Cr;STL;A351 CF8;A351 CF8M

Standards

Design and 

Manufacture

Face to face

Flange end

Inspection

ANSI pressure-temp rating

BS1868;

ANSI B16.34

ANSI B16.10

ANSI B16.5

API 598

ANSI B16.34

Test pressure 

Test item

Shell test

Seal test

Back seal test

Air seal test

Medium(MPa)

Water(MPa)

Air (MPa)

Pressure

(class)

150

3.1

2.2

2.2

0.5~0.7

300

7.8

5.6

5.6

600

15.3

11.2

11.2

Cast Steel and Stainless Steel Check Valve