液压控制阀

Pressure reducing control valve-Reduce higher inlet pressure to constant lower outlet pressure (adjustable) Pressure reducing control valve PRV Series is hydraulically operated by introducing or releasing water from the control chamber above the diaphragm/inner valve assembly. This valve controls and maintains a preset, reduced downstream (outlet) pressure by causing the main valve to throttle and keep the desired reduced pressure regardless of variations in demand and upstream (inlet) pressure. Feature -Pressure reducing congtrol valve- Reducing higher inlet pressure to a constant lower outlet pressure;Reducing burst frequency;Maximum potential water saving by redaction in leakage;Utilizing a standard pilot valve with no bias chambers or design changes;Fast, real time response to demand changes;No extra moving parts;Easy to commission, operate and maintain;Completely stable down to no-flow demand; Material Main valve Valve Patterns Globe Size Range 11/220(40-500 mm) End Connections (Pressure Ratings) Flanged: ISO PN16, PN25 (ANSI Class 150, 300) Standard Material -Body & Actuator- Ductile iron/cast steel) -Internals- Stainless steel, bronze & coated steel -Diaphragm- NBR (Buna N) Nylon fabric-reinforced -Seals- NBR (Buna N) Coating Fusion Bonded Epoxy, RAL 5005 (Blue); Control System Standard Material -Accessories- Bronze, brass, stainless steel & NBR (Buna N) -Tubing- Copper or stainless steel -Fittings- Forged brass or stainless steel Solenoid Standard Material -Body- Brass or stainless steel -Elastomers- NBR or FPM -Enclosure- Molded epoxy Dimension Dimension is on request.