H71 Stainless Steel Wafer lift Check Valve is to rely on the force created by the flow of the medium itself in the line of open and close automatically, belongs to a kind of automatic valve.Wafer check valve used for pipeline system, its main role is to prevent the backflow medium, to prevent the pump and its pattern in reverse driving voltage, and the discharge of the containers within the medium.Wafer check valve can also be used to give the pressure could rise to more than the main system of auxiliary system supply piping.Check valve according to different materials, the pipeline can be applied to a variety of media. w