Mainly made up by main valve and needle valve、guide calve、ball valve and tube system. Main valve body is designed with full channel, DC-style, streamlined, adopt diaphragm or piston two structures . This product sets spring pressure of pressure adjusting guide valve and outlet pressure of needle valve, and stabilize the outlet pressure by the feedback system of connection system and control room. This product uses the automatic controlling of water pressure of needle valve and guide valve, need not any other device and energy, simple maintenance, high pressure control accuracy, reliable decompression regulation functions.
Working features

1.       Stable and reliable pressure control, guide valve、main valve do continuous work, upstream and downstream pressure changes continuously, smoothly

2.       Convenient operation. After setting working pressure, upstream pressure or flow changes, main valve control automatically, stabilize downstream pressure.

3.       Main valve adopts full channel, DC-style, streamlined design. Small　loss of hydraulic, good energy-saving effect