Check valve function
The check valve is an automatic valve whose main function is to prevent backflow of the medium, prevent the pump and drive motor from reversing, and discharge the container medium. The check valve can also be used to supply a line in which the pressure may rise to an auxiliary system that exceeds the system pressure.
The installation position of the swing check valve is not limited. It can be installed on horizontal, vertical or inclined pipelines. For example, it is installed on vertical pipelines, and the flow direction of the medium is from bottom to top;
The swing-type check valve should not be made into a small-diameter valve, which can be made into a high working pressure. The PN can reach 42 MPa, and the DN can also be made very large, and the maximum can reach 2000 mm or more. Any working medium and any operating temperature range can be applied depending on the material of the housing and the seal. The medium is water, steam, gas, corrosive medium, oil, medicine, and the like. The working temperature of the medium ranges from -196 to -800 °C.
1.Size :2"~48" (DN50~DN1200)
2.Working Pressure :150Lb,PN10,PN16
3.Working Temperature :-20°C~250°C
6.Casting Material :WCB,WCC,C6,C12,LCB,LCC,CF8,CF3,CF8M,CF3M
7.End Connection:Wafer Type
A.Design&Manufacture standard: API 594,BS 1868
B. Face to face: ASME B16.10. DIN3202.
C.Pressure&Temperature standard: ASME B16.34