Master Valves

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Master Valves

The Sherwood and Rego series of master valves are high-pressure shut-off valves designed for heavy-duty use on manifold systems, fill plants, tube trailers and other piping systems. They're suitable for use with oxygen, acetylene, nitrogen, argon, helium, hydrogen, carbon dioxide, nitrous oxide, and other inert gases.

• Easy Operation - lowest operating torque available, E-Z grip handwheel, slow opening design

• Flow Control - 3 turns closed > open

• Versatility - carefully designed & soft seat certified at Wendell Hull

• Front or back panel installation available

• Interchangeable, vacuum capable, field rebuildable

Design Specifications

Working Pressure (Max) 6000 PSI (414 Bar)*  

Oxygen Surge Pressure 4350 PSI (300 Bar)

Burst Pressure 15,000 PSI (1034 Bar)

Leak Rate 1 x 10-4 atm cc/sec. (mL/sec.)

Operating Temperature -50° F to +149° F (-45° C to +65° C)

Operating Torque 7-9 in.-lbs. @ 6000 PSI (0.8 to 1.0 N-m)

Flow Data Cv 2.3

Cleaned for Oxygen Service Per CGA G-4.1 

           *Valves with 1-111 /2" connections are de-rated to 3500 PSI (242 Bar) due to the connections maximum pressure rating per CGA V-10