Disc sliding along the valve body vertical center line of the check valve, lift piston check valve can only be installed in horizontal pipe, high pressure small diameter check valve disc can be used on the ball. The body shape of the lift check valve is the same as the globe valve (can be used with the globe valve), so its fluid resistance coefficient is large. Its structure is similar to the globe valve, the valve body and disc with the globe valve phaseSilent check valveSilent check valveThe same. The upper part of the disc and the lower part of the cover are machined with guide sleeve Jane, the guide Jane of the disc can be raised and lowered freely in the guide Jane of the valve. When the medium flows forward, the disc can be opened by the thrust of the medium. Straight lift check valve medium inlet and outlet channel direction and valve seat channel direction perpendicular; Vertical lift check valve, the medium inlet and outlet channel direction and the valve seat channel direction is the same, its flow resistance is smaller than the straight through.