• China Forging Steel Check Valve Supplier

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The forging steel check valve can automatically open and close with the flow of the medium itself. It's also known as one-way valve, reverse flow valve, and back pressure valve, used to prevent the reverse flow of medium. Check valve is a kind of automatic valve. Its main function is to prevent the reverse flow of the medium, reverse rotation of the pump and the drive motor, and discharge of the medium in the container. The check valve can also be used to supply the auxiliary system where the pressure may rise above the system pressure. A check valve can be divided into swing check valve (rotating according to the center of gravity) and lift check valve (moving along the axis).

Product Detail
Design standard: API 602, BS 5352
The length of the structure: as per manufacturer’s standard
Flange connecting end: ASME B16.5, GB/T 9113, HG/T 20592, EN 1092.1
Butt welding connecting end: ASME B16.25, GB/T 12224
Wall thickness: API 602, ASME B16.34, GB/T 12224
Inspection and test: API 602, GB/T 13927
Pressure and temperature rating: ASME B16.34, EN 12516, GB/T 12224
Product scope: NPS 1/2 Inch - NPS 2 Inch (DN15 - DN50), Class 150 - 2500 LB (PN16 - PN420)
Main body material: ASTM A105, ASTM A182 LF2, ASTM A182 F11, ASTM A182 F22, ASTM A182 F51, ASTM A182 F91, ASTM A182 F304, ASTM A182 F316, ASTM A182 F304L, ASTM A182 F316L, etc.
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