API6D stainless steel angle check Valve

Driving type

Code

Driving type

Code

Electromagnetic drive

0

Bevel gear

5

Electromagnetic and hydraulic

1

Pneumatic

6

Electric and hydraulic

2

Hydraulic

7

Worn wheel

3

Pneumatic and hydraulic

8

Spur gear

4

Electric

9

Connection form

Internal thread

External thread

Flange

Welding

Butt clamp

Hoop

Ferrule

Code

1

2

4

6

7

8

9

check valve

Direct through lifting type

Lifting vertical type

Single-clack swing type

Multi-clack swing type

Double clack swing type

Code

1

2

4

5

6

Materials for valve seat,sealing surface and lining

Code

Materials for valve seat,sealing surface and lining

Code

Materials for valve seat,sealing surface and lining

Code

Copper alloy

T

Babbitt alloy

B

Rubber lining

J

Rubber

X

Alloy steel

H

Porcelain enamel

C

Nylon plastic

N

Nitriding steel

D

Lead lining

Q

Fluorine plastic

F

Hard alloy

Y

Boron steel

P

Could supply other materials according to client’s requirements

Test item

Shell test

Seal test

Back seal test

Air seal test

Medium

Water

Air

Unit

MPa

Ibf/in2

MPa

Ibf/in2

MPa

Ibf/in2

MPa

Ibf/in2

Pressure (Class)

150

3.1

450

2.2

315

2.2

315

0.5-0.7

60-100

300

7.8

1125

5.6

815

5.6

815

400

10.3

1500

7.6

1100

7.6

1100

600

15.3

2225

11.2

1630

11.2

1630

900

23.1

3350

16.8

2440

16.8

2440

1500

38.4

5575

28.1

4080

28.1

4080

Name

Material

Body

Bonnet

Wedge

Arm

Yoke

A216 WCB

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

Bonnet bolt

A193-B7  A320-L7  A193-B8

Nut

A194-2H  A194-7  A194-8

Could supply other materials according to client’s requirements