Raise Face China Swing Check Valve, Carbon Steel ASTM A216 WCB, Size 6Inch

Design Standard: API 6D & BS1868

Pressure Range: 300LBS
Diameter: 6 Inch

Body Material: ASTM A216 WCB
Bonnet Material: ASTM A216 WCB
Seat Ring: ASTM A105+13CR
End Connect: Flange RF
Working Principle:
When the Disc of the Swing Check Valve is connected with the Rocker and Rotates around the Pin Shaft at a certain Angle, the medium in the Pipeline flows in the specified direction (from Left to Right), and the Disc is pushed away from the Valve Seat, indicating that the Inlet pressure is higher than the Outlet pressure, and the Valve is in the open state. When the pressure difference between the two sides of the disc decreases to a certain value, the disc falls back to the closed state. When the pressure on the right side of the valve disc is higher than the pressure on the left side, it indicates that the fluid flows in the reverse direction. At this time, the force generated by the pressure difference on both sides compacts the valve disc on the seat, and the fluid cannot pass through, indicating that the medium cannot flow back. Therefore, the greater the fluid pressure of the swing check valve, the tighter the sealing surface will be, and the better the sealing effect will be.