Analyze the application of reduced pressure pneumatic valve 1

but due to reduce the waste of water and make the system layout and reasonable flow rate distribution and improve the system operating mode, should see the flow of water through reduced pressure pneumatic valve, though there is a lot of head loss. So the overall is still the energy-saving line before
pneumatic valve can be high pressure to reduce to the pneumatic valve pipe after the required level. Reduced pressure pneumatic valve is widely used in high-rise buildings, the area of rural water supply pipe network pressure is too high, mines and other places, reduced pressure pneumatic valve is a kind of special device, reduce the working pressure pipeline automatically. To ensure the water supply system in the water points to obtain the appropriate service water pressure and flow rate. Given the level of waste water leak rate and almost as the water pressure is directly proportional to the size of feed water system, thus reduced pressure pneumatic valve have improve system operation condition and potential water-saving effect, according to statistics, the water-saving effect is about rare %
ever spring in the diaphragm, piston, etc. Decompression of the pneumatic valve within the basic principle is to rely on pneumatic valve port local resistance to reduce the water pressure of the water, the structure of the reduced pressure pneumatic valve type a lot. The scope of the pressure drop of thin film by connecting the pneumatic disc or the import and export pressure difference on both sides of the piston automatic adjustment. In recent years appeared some new type of vacuum pneumatic valve, such as constant ratio type pneumatic valve to relieve stress. Constant ratio reduced pressure principle is to use the floating piston in the hydraulic pneumatic valve body ratio control, import and export side pressure ratio is inversely proportional to the import and export side piston area ratio. The reduced pressure pneumatic valve work smoothly without vibration; Pneumatic valve body without spring, so no spring corrosion, metal fatigue failure were evident; Good sealing performance, leakage and dynamic pressure reduction (both The water flow) And static pressure reduction ( Traffic too) Especially the relief will not affect the water flow at the same time. MPa pressure regulating range of error of plus or minus % % is usually reduced pressure pneumatic valve DNDN, and other specifications.