Specialty gas relief valves are commonly used downstream of pressure regulators  protect the regulator and delivery pressure gauge in the system. It protects the system from over pressurization in case of regulator failure. Specialty gas relief valves are used with hazardous gases as it provides a vent to the gas to be piped into a safe disposal system.

Specialty gas relief valves are safety devices approved by the Bureau of Explosives File 25-16-242-25AGDated June 27, 1957.

 Outstanding Features:

• Brass body
• Approximate weight, RV5570: 2 oz and  for RV5580: 8 oz
• Adjustable pressure range is up to 70% of set pressure
• 1/4" NPT male inlet connection
• RV5570:1/4" NPT male , RV5580: 1/4" NPT female outlet connection
• RV5570: PTFE coated on Viton®,  RV5580: Viton® seals
• 0.37 flow coefficient