
API Swing Check Valve
API Swing Check Valve
[Introduction to American Standard Swing Check Valve]
Product model specifications: Class150~1500Lb
[American Standard Swing Check Valve Product Implementation Standard]
Design and manufacturing: API 6D
Structural length: ANSI B 16.10
Flange standard: ANSI B 16.5a
Butt welding end size: ANSI B 16.25
Pressure test: API 6D or API 598
The sealing surfaces of the valve disc and valve seat are made of stellite cobalt-based hard alloy surfacing, which is wear-resistant, high-temperature resistant, has good abrasion resistance and long service life.
Various piping flange standards and flange sealing surface types can be used to meet various engineering needs and user requirements.
The valve body material variety is complete, and the packing and gasket are reasonably selected according to the actual working conditions or user requirements, which can be applied to various pressure, temperature and medium conditions.
The valve disc rotates around the pin shaft outside the valve seat to reduce the violent impact when closing.
The pin shaft and the valve disc are connected with an internal pin shaft structure to reduce external leakage points and make it more reliable to use.
[American Standard Swing Check Valve Test Pressure]
pressure
|
Strength test
|
Water tightness test | Airtightness test | |||
MPa
|
Lbf/in2
|
MPa
|
Lbf/in2
|
MPa
|
Lbf/in2
|
|
150
|
3.1
|
450
|
2.2
|
315
|
0.5~0.7
|
60~100
|
300
|
7.8
|
1125
|
5.6
|
815
|
||
600
|
15.3
|
2225
|
11.2
|
1630
|
||
900
|
23.1
|
3350
|
16.8
|
2440
|
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