Breathing Air Valve – CGA347 – 3/4″ NGT .024″ Oversize

This Sherwood breathing air valve is made from heavy-duty forged brass and is specifically designed for use with breathing air in steel cylinders. This breathing air valve has a CGA347 valve outlet with a 3/4″ NGT 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

  • CGA347 outlet
  • 3/4″ NGT tapered thread inlet 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 maybe dangerous, please use caution.

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Weight2 lbs
Dimensions4 × 2 × 3 in


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