BREATHING AIR VALVES – CGA346 – 3/4″ NGT – .004″ Oversize – 25+ Valves

These Sherwood breathing air valves are made from heavy-duty forged brass and are specifically designed for use with breathing air in steel cylinders. These breathing air valves have a CGA346 valve outlet with a 3/4″ NGT inlet and safety (burst disk).



  • Heavy-duty forged brass body for durability and high pressure
  • Precisely machined internal components meet the most stringent international valve performance standards
  • Metal-to-metal seal below bonnet threads prevents pressure in the threads at top of valve body



  • CGA346 outlet
  • 3360 PSI
  • 3/4″ NGT inlet .004″ oversize for steel cylinders
  • Automated assembly and testing processes ensure exceptional quality
  • 100% helium leak tested
  • Pressure Relief Device (PRD) is a unitized plug design that provides excellent flow characteristics, ensures proper assembly and tamper resistance
  • Direct-drive stem design with optimized O-ring (GV) or double O-ring (GVHM) seal reduces friction and operates at exceptionally low torque levels
  • Tapped for dip tube as required

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

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Weight2 lbs
Dimensions4 × 2 × 3 in


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Gas Cylinder Source Sherwood CGA346 Breathing Air Valve Three Quarter Inch Breathing Air Valve – CG...


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