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  • Relief Valves

    • Packaged and cleaned for oxygen service per CGA G-4.1
    • Bubble tight at 95% of set pressure
    • 100% factory tested
    • Repeatable performance


  • AR Series Relief Valves

    • High flow rates are approved by ASME rigorous testing to Code VIII
    • The ninety degree configuration provides relief of cryogenic gases directly avoiding flow through the spring
    • Bubble tight seat provides 100% shut off when resealing or static mode


  • DA Series Relief Valves

    • High flow rates compliment our AR series pressure relief valves and burst disc
    • Valve side selection is accomplished with a heavy-duty control arm clearly labeled for positive isolation
    • Needle valves accessorize for easy bleed of gas before removing pressure relief devices
    • Cleaned for Liquid Oxygen Service per CGA G-4.1
    • Pressure Rating: 725 PSI (50 bar)
    • Temperature Rating: -325 ºF (-198 ºC) to +165 ºF (+74 ºC)


  • DR Series Relief Valves

    • High flow rates compliment our AR series pressure relief valves
    • Valve side selection is accomplished with a heavy-duty control arm clearly labeled for positive isolation
    • Needle valves accessorize for easy bleed of gas before removing pressure relief devices


  • Rego® Relief Valves for Gas and Cryogenic Systems

    9400 Series Brass or Stainless Steel,
    Non-ASME
    All valves are cleaned and packaged for oxygen service per CGA G-4.1.

    • Bubble tight at 95% of set pressure.
    • Easy to read color coded psig/bar labels.
    • Unique tamper resistant adjusting screw.
    • Adapters provide standard pipe thread connections for venting gas to the outdoors.
    • Repeatable performance.
    • 100% factory tested.
    • Temperature range -320 to + 165 degrees.