Check valve refers to the valve that relies on the flow of the medium itself to automatically open and close the disc to prevent the backflow of the medium, also known as check valve, one-way valve, and reverse flow valve.

Check valve function

The check valve is a kind of automatic valve, its main function is to only allow the medium to flow in one direction, prevent the medium from flowing backward, prevent the pump and drive motor from reversing, and discharge the container medium. Check valves are also used on lines that supply auxiliary systems where the pressure may rise above system pressure.