200X valve, is a kind of energy to regulate the use of the medium itself and intelligent control line pressure valve. 20OX valve for domestic water supply, fire water and other industrial water systems, by adjusting the pressure pilot valve, you can adjust the outlet pressure of the main valve. Outlet pressure is not due to changes in the inlet pressure, inlet flow changes, safe and reliable outlet pressure will be maintained at the set value, and can be adjusted according to the set value, according to achieve the purpose of decompression. The decompression valve precise, stable, secure, reliable, easy installation adjustment, long service life.