The pressure reducing valve is a common intelligent valve that uses the energy of the medium itself to regulate and control the pipeline pressure. It is often used in domestic water supply, fire water supply and other industrial water supply systems. The outlet pressure of the main valve can be adjusted by adjusting the pressure reducing pilot valve.
1. For water heater
The pressure reducing valve used on the water heater is generally installed on the water inlet of the water heater and installed in the direction of the arrow on the steel pipe. The function of the water heater pressure reducing valve is to reduce the impact of water pressure on the water heater. When the water heater is heated, it will expand with heat and contract with cold. When heating, the pressure of the water will exceed the safe value. At this time, the pressure reducing valve will discharge the pressure from the pressure relief port to protect the inner tank and the water pipe.
2. For natural gas pipeline
The natural gas pressure reducing valve is suitable for water, steam, and air medium pipelines. The inlet pressure is reduced to a certain required outlet pressure through adjustment. When the inlet pressure and flow rate change, the outlet pressure is automatically maintained within a certain range by the energy of the medium itself. within, but the difference between inlet pressure and outlet pressure must be greater than or equal to 0.2MPA/CM.
3. Used in hydraulic system
The hydraulic pressure reducing valve reduces the water pressure by the local resistance of the flow channel in the valve to the water flow, and the range of water pressure reduction is automatically adjusted by the film connected to the valve disc or the water pressure difference between the inlet and outlet on both sides of the piston. The principle of constant ratio decompression is to use the water pressure ratio of the floating piston in the valve body to control the pressure difference, and the decompression ratio of the inlet and outlet ends is inversely proportional to the piston area of the inlet and outlet sides.
4. For water pipes
The water pipe pressure reducing valve is an essential accessory for water pipes. Its main function is to reduce the pressure of the air source and stabilize it to a certain value, so that the regulating valve can obtain stable air source power for adjustment and control. The water pipe pressure reducing valve works smoothly without fluctuation, and there is no spring device in the valve body, so there is no concern about spring corrosion and metal fatigue failure; the seal is good and does not leak, so it reduces both dynamic pressure (when water is flowing) and static pressure (flow rate is 0 When), the water pipe pressure reducing valve especially does not affect the water flow while depressurizing.
