Norris uses O-ring seal valves, which provide the following advantages:

• Smooth hand wheel operation
• No packing, insuring long maintenance free operation
• Conform to all CGA requirements
• Extensive tests on all valves exceed industry requirements

Breathing Air Valves

• CGA 346 (2400-3000psi)
• CGA 347 (4500-5000psi)
• CGA 702 (6000psi)

Other valves available upon customer request.