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Sherwood Hydrogen Valve – CGA350, 3/4″ NGT – 25+ Valves

These Sherwood hydrogen valves are made from heavy-duty forged brass and are specifically designed for use with hydrogen in steel gas cylinders. These hydrogen gas valves have a CGA350 valve outlet with a 3/4″ NGT inlet and safety (burst disk).

Premium Construction

  • Automated assembly and testing processes ensure exceptional quality
  • 100% helium leak tested
  • Heavy-duty forged brass body for durability and high pressure
  • Precisely machined internal components meet the most stringent international valve performance standards
  • Pressure Relief Device (PRD) is a unitized plug design that provides excellent flow characteristics, ensures proper assembly and tamper resistance
  • Improved metal-to-metal seal below bonnet threads prevents pressure in the threads at top of valve body
  • Direct-drive stem design with optimized O-ring (GSV) or double O-ring (GSVH) seal reduces friction and operates at exceptionally low torque levels
  • Inlet and outlet thread configurations are available for a broad spectrum of customer, country and code specifications
  • Inlet tapped (1/4″ NPT) for dip tube as required

 

Valve Features

  • Gas Service: Hydrogen and Carbon Monoxide
  • CGA350 outlet
  • Inlet Thread Size: 3/4″ NGT
  • Outlet Thread Size: .825-14 NGO LH Ext.
  • Maximum Working Pressure: 3360, 3775, and 4000 PSI Availability
  • Operating Temperature Range: -50° F to +149° F
  • Storage Temperature Range: -65° F to +155° F
  • Leak Rate Internal/External: 1×10-3 atm cc/sec.
  • Cv Flow Factor: Standard: .690
  • Minimum Cycle Life: 2000 Cycles
  • Closing Torque: 20–30 in.-lbs.
  • Operating Torque: 10–20 in.-lbs.
  • Bonnet Installation Torque: 50–60 ft.-lbs.
  • Handwheel Nut Installation Torque: 25-45 in. – lbs.
  • PRD Installation Torque: 25–35 in.-lbs.
  • PRD Flow Capacity: 60 cfm @ 100 PSI

Must be installed by a qualified cylinder technician due to torque specifications. Compressed gas cylinders and valves are dangerous. Please use caution.

Have questions? Email us at [email protected].

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