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    22 Products

    Tank-Mount Pressure-Regulating Valves for Air and Inert Gas

    These 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. Valves have 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
    Image of Product. Female Outlet × Female Inlet Single-Stage Valves with Knob. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Air and Inert Gas, Single Stage, Female Outlet, UNF Outlet Thread, Female Inlet, Outlet-Pressure-Adjustment Knob.
    Image of Product. UNF Male Outlet × Female Inlet Single-Stage Valves with T-Handle. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Air and Inert Gas, Single Stage, Male Outlet, UNF Outlet Thread, Female Inlet, Outlet-Pressure-Adjustment T-Handle.

    Female Outlet ×

    Female Inlet

    Single-Stage Valves

    with Knob

    UNF Male Outlet × Female

    Inlet Single-Stage

    Valves with T-Handle

    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.
    Brass Body—Valves with a brass body have a longer service life than valves with a brass and steel body.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    Location
    Thread
    Direction
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Body
    Seal
    Diaphragm
    Temp. Range,
    ° F
    Each
    For Carbon Dioxide
     
    5/8"-18 UNF Female Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000SideRight Hand
    		0 to 145KnobBrassPTFENeoprene-20 to 1203687N1120000000
     
    9/16"-18 UNF Male Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000SideRight Hand
    		0 to 125T-HandleBrassPTFERubber-20 to 1207897A39000000
     
    Two Stage
    Image of Product. NPT Female Outlet × Female Inlet Two-Stage Valves with T-Handle. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Air and Inert Gas, Two Stage, NPT Outlet Thread, Female Inlet, Female Outlet, Outlet-Pressure-Adjustment T-Handle.
    Image of Product. UNF Female Outlet x Female Inlet Two-Stage Valves with T-Handle. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Air and Inert Gas, Two Stage, Female Outlet, UNF Outlet Thread, Female Inlet, Outlet-Pressure-Adjustment T-Handle.

    NPT Female Outlet ×

    Female Inlet Two-Stage

    Valves with T-Handle

    UNF Female Outlet x

    Female Inlet Two-Stage

    Valves with T-Handle

    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
    Location
    Thread
    Direction
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Body
    Seal
    Diaphragm
    Temp. Range,
    ° F
    Each
    For Carbon Dioxide
     
    1/4 NPT Female Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000SideRight Hand
    		0 to 250T-HandleBrassPTFENeoprene-20 to 1203687N1240000000
    320
    		SideRight Hand
    		0 to 4,000SideRight Hand
    		0 to 250T-HandleBrassPTFEStainless Steel-20 to 1203687N129000000
     
    5/8"-18 UNF Female Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000SideRight Hand
    		0 to 125T-HandleBrass/SteelPTFERubber-20 to 1207897A17000000
     

    Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

    Flowmeters let you see the gas flow rate from a distance. These 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. They have a gauge for monitoring inlet pressure from the tank.
    For Argon and Argon/Carbon Dioxide Blend
    Image of Product. Male Inlet × Female Outlet With One Flowmeter. Front orientation. Pressure-Regulating Valves. Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Outlet, Male Inlet, UNF Outlet Thread, Single Stage, 1 Flowmeter.

    Male Inlet × Female

    Outlet With One

    Flowmeter

    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.
    1 Flowmeter—Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Flow Range
    No. of
    Flowmeters
    Body
    Seal
    Diaphragm
    Each
    UNF Female Outlet × NGO Male Inlet
    580
    		SideRight Hand
    		0 to 3,000Single5/8"-18
    		SideRight Hand
    		0 to 70 scfh (Argon), 0 to 70 scfh (Argon/Carbon Dioxide Blend)1BrassPTFENeoprene78595A50000000
     
    Valve Union Fittings
    Adapters change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
    Each
    Adapter78595A49000000
    For Argon, Argon/Carbon Dioxide Blend, and Helium
    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.
    1 Flowmeter—Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Flow Range
    No. of
    Flowmeters
    Body
    Seal
    Diaphragm
    Each
    UNF Female Outlet × NGO Male Inlet
    580
    		SideRight Hand
    		0 to 3,000Two5/8"-18
    		SideRight Hand
    		0 to 40 scfh (Argon), 0 to 40 scfh (Argon/Carbon Dioxide Blend), 0 to 150 scfh (Helium)1BrassPTFENeoprene78595A4950000000
     
    Valve Union Fittings
    Adapters change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
    Each
    Adapter78595A49000000
    For Argon, Argon/Carbon Dioxide Blend, Carbon Dioxide, and Helium
    Image of Product. Male Inlet × Female Outlet With One Flowmeter. Front orientation. Pressure-Regulating Valves. Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Outlet, Male Inlet, UNF Outlet Thread, Single Stage, 1 Flowmeter.

    Male Inlet × Female

    Outlet With One

    Flowmeter

    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.
    1 Flowmeter—Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Flow Range
    No. of
    Flowmeters
    Body
    Seal
    Diaphragm
    Each
    UNF Female Outlet × NGO Male Inlet
    580
    		SideRight Hand
    		0 to 4,000Single5/8"-18
    		SideRight Hand
    		0 to 60 scfh (Argon)
    0 to 60 scfh (Argon/Carbon Dioxide Blend)
    0 to 50 scfh (Carbon Dioxide)
    0 to 160 scfh (Helium)    		1BrassBuna-NBrass78595A3940000000
     
    Valve Union Fittings
    Adapters change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
    Each
    Adapter78595A49000000
    For Carbon Dioxide
    Image of Product. Female Inlet × Female Outlet With One Flowmeter. Front orientation. Pressure-Regulating Valves. Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Outlet, UNF Outlet Thread, Female Inlet, Single Stage, 1 Flowmeter.

    Female Inlet ×

    Female Outlet With

    One Flowmeter

    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.
    1 Flowmeter—Valves with one flowmeter are for one piece of equipment on a tank. The flowmeter has a single scale.
    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Flow Range
    No. of
    Flowmeters
    Body
    Seal
    Diaphragm
    Each
    UNF Female Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000Single5/8"-18
    		SideRight Hand
    		0 scfh to 70 scfh1BrassPTFENeoprene78595A460000000
     
    Valve Union Fittings
    Adapters change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
    Each
    Adapter78595A49000000

    High-Purity Tank-Mount Pressure-Regulating Valves for Inert Gas

    Reduce contaminants in research sample systems, emission monitoring systems, chromatography, and other high-purity applications that use argon, helium, nitrogen, or carbon dioxide. These valves have a 316 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 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 have 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.
    For Carbon Dioxide
    Image of Product. Swagelok® Female Outlet × NGO Female Inlet (Brass). Front orientation. Pressure-Regulating Valves. High-Purity Tank-Mount Pressure-Regulating Valves for Inert Gas, Female Inlet, Female Outlet, Brass Body.
    Image of Product. Swagelok® Female Outlet × NGO Female Inlet (Chrome-Plated Brass). Front orientation. Pressure-Regulating Valves. High-Purity Tank-Mount Pressure-Regulating Valves for Inert Gas, Female Inlet, Female Outlet, Chrome-Plated Brass Body.

    Swagelok® Female Outlet ×

    NGO Female Inlet (Brass)

    Swagelok® Female Outlet ×

    NGO Female Inlet

    (Chrome-Plated Brass)

    Chrome-Plated Brass Body—Chrome-plated valves add a layer of corrosion resistance.
    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
    Temp. Range,
    ° F
    Each
    NGO Female Inlet × Swagelok® Female Outlet
     
    Brass Body—316 Stainless Steel Diaphragm and PTFE Seal
    320
    		SideRight Hand
    		0 to 4,000Single1/4"Side0 to 15Knob-20 to 1207951A720000000
    320
    		SideRight Hand
    		0 to 4,000Single1/4"Side0 to 125Knob-20 to 1207951A73000000
    320
    		SideRight Hand
    		0 to 4,000Two1/4"Side0 to 125Knob-20 to 1207951A69000000
     
    Chrome-Plated Brass Body—316 Stainless Steel Diaphragm and PTFE Seal
    320
    		SideRight Hand
    		0 to 4,000Single1/4"Side0 to 15Knob-20 to 1207951A63000000
    320
    		SideRight Hand
    		0 to 4,000Single1/4"Side0 to 50Knob-20 to 1207951A34000000
    320
    		SideRight Hand
    		0 to 4,000Two1/4"Side0 to 15Knob-20 to 1207951A66000000
    320
    		SideRight Hand
    		0 to 4,000Two1/4"Side0 to 50Knob-20 to 1207951A67000000
    320
    		SideRight Hand
    		0 to 4,000Two1/4"Side0 to 125Knob-20 to 1207951A68000000
     

    Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas

    Commonly used in TIG welding where gas flow/coverage is a concern, these valves measure the gas flow rate in addition to regulating pressure. They 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. Valves have a gauge to monitor the outlet flow rate and a second gauge to monitor inlet pressure from the tank. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty the tank.
    For Carbon Dioxide
    Image of Product. Female Outlet × Female Inlet. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Outlet, UNF Outlet Thread, Female Inlet, Single Stage, Brass Body, Neoprene Diaphragm.
    Image of Product. Female Outlet × Female Inlet with Hose. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Outlet, UNF Outlet Thread, Female Inlet, Single Stage, Brass Body, Neoprene Diaphragm, 10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends.

    Female Outlet × Female

    Inlet

    Female Outlet × Female Inlet with Hose

    Inlet
    Outlet
    Material
    CGA
    No.
    Location
    Thread
    Direction
    Pressure Gauge
    Reading Range, psi
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Flow Range,
    scfh
    Flow Gauge
    Included
    Body
    Seal
    Diaphragm
    Includes
    Temp. Range,
    ° F
    Each
    UNF Female Outlet × NGO Female Inlet
    320
    		SideRight Hand
    		0 to 4,000Single5/8"-18
    		SideRight Hand
    		0 to 60YesBrassPTFENeoprene—-20 to 1207997A660000000
    320
    		SideRight Hand
    		0 to 4,000Single5/8"-18
    		SideRight Hand
    		0 to 60YesBrassPTFENeoprene10-ft. long, 3/16" dia. hose with 5/8"-18 male fittings on both ends-20 to 1207997A68000000
    320
    		SideRight Hand
    		0 to 4,000Single5/8"-18
    		SideRight Hand
    		0 to 100YesBrassPTFENeoprene—-20 to 1207997A51000000
     

    Tank-Mount Pressure-Regulating Valves for Cryogenic Cylinders

    Image of Product. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Cryogenic Cylinders.
    Automatically reduce a high inlet pressure from compressed gas tanks to a lower, stable outlet pressure. These valves can remove gases from liquid cryogenic cylinders. 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. They are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate slightly as you empty 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.
    Inlet
    Outlet
    For Use With
    CGA
    No.
    Location
    Thread
    Direction
    No. of
    Stages
    Thread
    Size
    Location
    Thread
    Direction
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Temp. Range,
    ° F
    Each
    UNF Male Outlet × NGO Female Inlet
     
    Brass Body—Stainless Steel Diaphragm and PTFE Seal
    Carbon Dioxide320
    		SideRight Hand
    		Single9/16"-18
    		BottomRight Hand
    		0 to 350T-Handle-20 to 1207897A830000000
     
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