Cast Steel Flanged Swing Check Valve

Cast steel flange swing check valve is a one-way flow control valve with a swing valve disc structure and a cast steel body material, fixed to the pipeline through a flange connection.

Structure and technical parameters
Valve body structure:
‌Flange connection: The inlet and outlet ends of the valve body are flange-designed (in accordance with ANSI B16.34 standard), suitable for DN15~DN600 pipes;
‌Swing valve disc: The valve disc is connected to the valve shaft through a rocker arm, which can be slightly compensated 360° to ensure that the sealing surface fits tightly;
‌Fully enclosed design: All opening and closing parts are built into the valve body, with no external leakage points and high safety.

 

Cast Steel Flanged Swing Check Valve

 

Applicables
Petrochemical industry: high-temperature oil pipeline, reactor outlet backflow prevention;
Power system: boiler steam pipeline, high-pressure cooling water circulation system;
Industrial water treatment: large-flow water supply system, sewage pump outlet backflow prevention.

Selection points
Pressure matching:
For conventional working conditions, select PN16~40 cast steel valve body, and ultra-high pressure (such as PN160) needs to be upgraded to chrome-molybdenum steel material;
Medium adaptability:
Particle-containing media need to select a sealing surface with surfacing hard alloy;
Corrosive fluids (such as weak acid and alkaline media) are recommended to be lined with PTFE or use stainless steel sealing surfaces;
Installation requirements:
Flow direction control: Strictly install according to the "low in and high out" marked on the valve body. Reverse installation will cause the valve disc to fail to close;
Flange sealing: Metal spiral wound gaskets or graphite gaskets need to be installed during installation to ensure the sealing of the flange surface

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