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Breathing Air Valve – CGA346 – 1.125″ UNF Straight

This Sherwood breathing air valve is made from heavy-duty forged brass and is specifically designed for use with breathing air in aluminum cylinders. This breathing air valve has a CGA346 valve outlet with a 1.125″ UNF straight inlet and safety (burst disk).


Premium Construction

  • 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


Valve Features

  • CGA346 outlet
  • 1.125″ UNF straight inlet
  • 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
  • 3775 Safety Burst Pressure


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

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Weight2 lbs
Dimensions4 × 2 × 3 in


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