200P Pressure reducing valve is a pilot piston pressure reducing valve, which is composed of main valve and pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, cylinder liner, spring and other parts. The pilot valve is mainly composed of valve seat It is composed of valve disc, diaphragm, spring, adjusting spring and other parts. Set the outlet pressure by adjusting the spring pressure, use the diaphragm to sense the change of outlet pressure, and use the pilot valve to open and close the driving piston to adjust the size of the overflow area at the throttling part of the main valve, so as to realize the function of pressure reduction and stabilization. 200P Pressure reducing valve is mainly used for steam pipeline to reduce pressure and stabilize pressure. 200P Pressure reducing valve this product is mainly used for steam pipelines to reduce pressure and stabilize pressure.