The pilot-operated pressure reducing valve uses the opening of the opening and closing parts in the control valve body to adjust the flow of the medium, reduce the pressure of the medium, and adjust the opening of the opening and closing parts with the help of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range. When the inlet pressure changes continuously, the outlet pressure is kept within the set range to protect the living and production equipment behind it.

The pressure reducing valve is a special device that automatically reduces the working pressure of the pipeline. Its function is to reduce the higher pressure of the pipeline before the valve to the required level of the pipeline after the valve is given a pressure reduction range. Pressure reducing valves are widely used in high-rise buildings, areas with excessively high water pressure in urban water supply networks, mines and gas pipelines, etc.