Cast Steel Swing Check Valve refers to a valve that automatically opens and closes the valve flap by means of the flow of the medium itself, and is used to prevent the back flow of the medium, which is also called a check valve, a check valve, a reverse flow valve, and a back pressure valve. The function of this type of valve is to allow only the medium to flow in one direction and to prevent the direction from flowing. Usually, the valve is automatically operated, and the valve flap is opened by the fluid pressure flowing in one direction; when the fluid flows in the opposite direction, the fluid pressure and the self-re closing valve flap of the valve disc act on the valve seat to cut off the flow.
Cast Steel Swing Check Valve is suitable for pipelines of various working conditions such as petroleum, chemical, hydraulic, thermal power stations, etc., cutting or connecting the medium. Applicable medium: water, oil, steam, etc.
Main Parameter Specification
Design and Manufacture：Cast Steel Check Valve to BS 1868,ASME B16.34,API 6D
Inspection and Test：API598,API600 or API 6D
End Flange Dimension：ASME B16.5(for NPS≤24,ASME B 16.47 series B,API 605,ASME B16.47 A Series,MSS SP-44(for NPS＞24)
BW end Dimension：ASME B16.25
Face to Face and End to End：ASME B16.10
Pressure-temperature ratings：ASME B16.34
Wall Thickness Dimension：API 600,BS 1868
Body material: carbon steel, stainless steel, alloy steel,bronze
End Connection: RF,RTJ, BW
Pressure range: Class150~2500(PN16~PN420)
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