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    8 Products

    ASME-Code Fast-Acting Pressure-Relief Valves for Cryogenic Fluids

    These valves meet ASME Code Section VIII for use with cryogenic pressure vessels. Rated for use with argon, carbon dioxide, helium, hydrogen, methane, nitrogen, and oxygen, they are cleaned and bagged for oxygen service and other high-purity applications. All spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Attach a drain line to the threaded relief port for remote discharge.
    NPT Male Inlet and NPT Female Relief Port
    Image of Product. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Cryogenic Fluids.
    Inlet
    Relief
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Shape
    Overall
    Ht.
    For Use With
    Temp. Range,
    ° F
    Valve
    Type
    Certification
    Choose a Set Pressure, psi
    Each
     
    Brass Body—Brass Seal
    1/2
    		Bottom6003/4
    		Side90° Elbow6 9/16"Argon, Carbon Dioxide, Helium, Hydrogen, Methane, Nitrogen, Oxygen-320 to 150Pop SafetyASME BPVC.VIII
    		20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 3008089K120000000
    3/4
    		Bottom6001
    		Side90° Elbow6 9/16"Argon, Carbon Dioxide, Helium, Hydrogen, Methane, Nitrogen, Oxygen-320 to 150Pop SafetyASME BPVC.VIII
    		20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130, 140, 150, 160, 170, 180, 190, 200, 210, 220, 230, 240, 250, 260, 270, 280, 290, 3008089K14000000
     

    High-Purity Tank-Mount Pressure-Regulating Valves for Fuel Gases

    Image of Product. Single Stage. Front orientation. Pressure-Regulating Valves. High-Purity Tank-Mount Pressure-Regulating Valves for Fuel Gases, Female Inlet, Female Outlet, Brass Body, Single Stage.

    Single Stage

    Image of Product. Two Stage. Front orientation. Pressure-Regulating Valves. High-Purity Tank-Mount Pressure-Regulating Valves for Fuel Gases, Female Inlet, Female Outlet, Brass Body, Two Stage.

    Two Stage

    Designed to reduce contaminants in high-purity applications using hydrogen and methane gas, these valves have a stainless steel and brass body with a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination. They’re often used in research sample systems, emission monitoring systems, and chromatography. Valves automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. All have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Outlet fittings are Swagelok® for a leak-free seal around hard metal tubing in high-pressure lines. Also known as instrumentation fittings, Swagelok® fittings are compatible with Parker A-Lok, Gyrolok, Bilok, and Tylok fittings. Valves come with a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.
    Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
    Single Stage—Single-stage valves reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank. They’re best for applications where a constant outlet pressure isn’t critical.
    Two Stage—Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.
    Inlet
    Outlet
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    For Tube
    OD
    Location
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    For Use With
    Temp. Range,
    ° F
    Each
    NGO Female Inlet × Swagelok® Female Outlet
     
    Brass Body/Stainless Steel Body—316 Stainless Steel Diaphragm and PTFE Seal with Relief Valve
    350
    		SideLeft Hand
    		0 to 4,000Single1/4"Side0 to 15KnobHydrogen, Methane-20 to 1207951A170000000
    350
    		SideLeft Hand
    		0 to 4,000Single1/4"Side0 to 125KnobHydrogen, Methane-20 to 1207951A19000000
    350
    		SideLeft Hand
    		0 to 4,000Two1/4"Side0 to 15KnobHydrogen, Methane-20 to 1207951A27000000
    350
    		SideLeft Hand
    		0 to 4,000Two1/4"Side0 to 125KnobHydrogen, Methane-20 to 1207951A29000000
    350
    		SideLeft Hand
    		0 to 4,000Two1/4"Side0 to 500KnobHydrogen, Methane-20 to 1207951A71000000
     

    Tank-Mount Pressure-Regulating Valves for Fuel Gases

    Attach these valves to acetylene, hydrogen, methane, propane, or propylene tanks to reduce a high inlet pressure to a lower, stable outlet pressure. They have Compressed Gas Association (CGA) numbered inlet fittings for secure connections to compressed gas tanks. Choose a valve with the same CGA number as your tank and other system components. Valves come with a gauge to monitor outlet pressure and a gauge to monitor inlet pressure from the tank.
    Choose a valve with a maximum outlet pressure that’s approximately twice your application’s normal operating pressure. Your operating pressure should never exceed 75% of the valve’s maximum outlet pressure.
    Two Stage
    Image of Product. Male Outlet × Female Inlet Two-Stage Valve With Knob. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Fuel Gases, Two Stage, Female Inlet, Male Outlet, UNF Outlet Thread, Outlet-Pressure-Adjustment Knob.

    Male Outlet × Female

    Inlet Two-Stage Valve

    With Knob

    Two-stage valves progressively reduce pressure over two steps for more consistent outlet pressure at all times. They’re often used in applications that require a constant outlet pressure regardless of the tank level.
    Brass Body—Valves with a brass body have a longer service life than valves with a brass and steel body.
    Stainless Steel Diaphragm—Valves with a stainless steel diaphragm can withstand harsh environments.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    Thread
    Size
    Location
    Thread
    Direction
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Body
    Seal
    Diaphragm
    Temp. Range,
    ° F
    Each
    For Hydrogen and Methane
     
    UNF Male Outlet × NGO Female Inlet
    350
    		SideLeft Hand
    		0 to 4,0009/16"-18
    		SideLeft Hand
    		0 to 80KnobBrassNeopreneStainless Steel-20 to 1207897A350000000
     
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