タイトルまたは説明

Custom production products, according to customer demand production, the role of the valve of the check valve is to allow the medium to flow in one direction only, and to prevent the flow in the opposite direction. Usually this valve is automatic work, in one direction of flow of fluid pressure, the valve flap open; fluid flow in the opposite direction, by the fluid pressure and the valve flap of the self-weight combined valve flap act on the valve seat, thus cutting off the flow.