Check valve

Check valve is a kind of automatic opening and closing valve that does not require manpower. It relies on the flow of the medium to open and close. It is mainly used to prevent the backward flow control of pipeline medium. It is also called reverse flow valve and check valve. The check valve has only one direction of flow and can only flow along the water inlet and cannot be reversed. Generally installed at the outlet of the pump to prevent high-pressure water from flowing back into the pump, to make the pump impeller loose or damaged due to hydraulic shock, and prevent accidents. In short, it will be used in official ways to prevent cut-offs.