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The wafer check valve is a universal one-way fluid valve. Its light weight, small size, easy to install between the flanges, the valve consists of two semi-circular spring and the plate surface, the pin is fixed on the valve body spring deformation valve plate is closed, the fluid pressure and make it open the spring Deformation quickly, this will protect the pipe from water hammer damage. Installation Notes: Place the pipeline should be taken to make the flow direction of the wafer check valve and fluid flow; installed in the vertical pipe. For horizontal piping, place the wafer check valve vertically; use a telescopic tube between the wafer check valve and the butterfly valve; do not connect it directly to other valves; within the operating radius of the valve plate , To avoid adding pipe joints and obstructions; Do not install a reducer in front of or behind the wafer check valve; Pay attention to leaving enough space when the wafer check valve is installed near the bend When the pump outlet is fitted with a wafer check valve, at least six times the diameter of the valve is outflowed to ensure that the disc is ultimately subjected to the fluid.