FUNCTION AND CLASSIFICATION OF CHECK VALVE
Check valve definition Check valve refers to the valve that automatically opens and closes the valve disc depending on the flow of the medium itself to prevent the backflow of the medium, also known as check valve, one-way valve, reverse flow valve, and back pressure valve. High Quality Ductile Iron Flange rubber Ball Check Valve Check valve action The check valve is an automatic valve. Its main function is to prevent the reverse flow of medium, the reverse rotation of pump and drive motor, and the discharge of container medium. The check valve can also be used on the pipeline to supply the auxiliary system whose pressure may rise above the system pressure. Classification of check valves Check valves can be divided into: 1. swing check valve The disc of the swing check valve is disc-shaped and rotates around the rotating shaft of the valve seat channel. Because the channel in the valve is linear, the flow resistance is smaller than that of the lift check valve. It is suitable