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    46 Products
    About Pressure Gauges
    industrial info icon

    Find a gauge with the right connection material and dial type—many with traceable calibration certificates.

    Digital-Display High-Accuracy Pressure Gauges

    A four-digit LCD display allows for easy reading of measurements. The LCD shuts off automatically to extend battery life. Gauges are commonly used with pneumatic regulators, compressors, and in critical processes that require high accuracy, such as hydraulic and laboratory applications.
    ABS Case with Brass Connection—(Pounds per Square Inch, Bar, Kilograms per Square Centimeter, Megapascals)
    Image of Product. Front orientation. Center-Back Connection. Digital-Display High-Accuracy Pressure Gauges, ABS Case.
    Image of Attribute. Center-Back Connection. Front orientation. Digital-Display High-Accuracy Pressure Gauges, Center-Back Connection.

    Center-Back

    Connection

    Temp.
    Range, ° F
    Batteries
    Center-Back
    Connection
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    Included
    Size
    Features
    For Use With
    Accuracy
    Pressure Range
    Each
    Any-Angle Mount
     
    NPT Male
    1 3/4"1/8
    		Black-10 to 140-10 to 140YesCR24505-min. Automatic Shut-OffAir
    Carbon Dioxide
    Hydrogen
    Natural Gas
    Nitrogen    		±1% Full Scale (Grade 1A)0 to 145 psi/0 to 10 bar/0 to 10 kg per cm²/0 to 1 MPa1287N1000000
    1 3/4"1/4
    		Black-10 to 140-10 to 140YesCR24505-min. Automatic Shut-OffAir
    Carbon Dioxide
    Hydrogen
    Natural Gas
    Nitrogen    		±1% Full Scale (Grade 1A)0 to 145 psi/0 to 10 bar/0 to 10 kg per cm²/0 to 1 MPa1287N200000
     
    NPT Male with Calibration Certificate Traceable to NIST
    1 3/4"1/8
    		Black-10 to 140-10 to 140YesCR24505-min. Automatic Shut-OffAir
    Carbon Dioxide
    Hydrogen
    Natural Gas
    Nitrogen    		±1% Full Scale (Grade 1A)0 to 145 psi/0 to 10 bar/0 to 10 kg per cm²/0 to 1 MPa1287N311000000
    1 3/4"1/4
    		Black-10 to 140-10 to 140YesCR24505-min. Automatic Shut-OffAir
    Carbon Dioxide
    Hydrogen
    Natural Gas
    Nitrogen    		±1% Full Scale (Grade 1A)0 to 145 psi/0 to 10 bar/0 to 10 kg per cm²/0 to 1 MPa1287N312000000
     
    ABS Case with 304 Stainless Steel Connection—(Pounds per Square Inch, Bar, Megapascals)
    Image of Product. Front orientation. Bottom Connection. Digital-Display High-Accuracy Pressure Gauges, ABS Case.
    Image of Attribute. Bottom Connection. Front orientation. Digital-Display High-Accuracy Pressure Gauges, Bottom Connection.

    Bottom

    Connection

    Temp.
    Range, ° F
    Batteries
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    Included
    Size
    Features
    For Use With
    Accuracy
    Choose a Pressure Range
    Each
    Any-Angle Mount
     
    NPT Male
    2 1/2"1/4
    		Black0 to 18515 to 140Yes9V3-min. Automatic Shut-Off
    Maximum Reading Recall    		Air
    Hydrogen
    Nitrogen    		±1% Full Scale (Not Rated)0 to 30 psi/0 to 2 bar/0 to 0.2 Mpa, 0 to 100 psi/0 to 6.9 bar/0 to 0.7 MPa, 0 to 300 psi/0 to 20.7 bar/0 to 2 MPa2798K211000000
     
    NPT Male with Calibration Certificate Traceable to NIST
    2 1/2"1/4
    		Black0 to 18515 to 140Yes9V3-min. Automatic Shut-Off
    Maximum Reading Recall    		Air
    Hydrogen
    Nitrogen    		±1% Full Scale (Not Rated)0 to 30 psi/0 to 2 bar/0 to 0.2 Mpa, 0 to 100 psi/0 to 6.9 bar/0 to 0.7 MPa, 0 to 300 psi/0 to 20.7 bar/0 to 2 MPa2798K311000000
     

    Low-Pressure Differential Gauges with Color Indicator

    A band of green, yellow, and red provides a clear indication of changes in differential pressure. Gauges are commonly used to indicate clogged filters.
    Glass-Filled Nylon Case with Anodized Aluminum Connections (Pounds per Square Inch)
    Image of Product. Front orientation. Differential Pressure Gauges. Low-Pressure Differential Gauges with Color Indicator.
    Pressure Range, psi
    Green
    Band
    Yellow Band
    Red Band
    Max. Pressure,
    psi
    Environment
    Temp. Range, ° F
    Process Temp.
    Range, ° F
    Ht.
    Wd.
    Dp.
    Case
    Color
    For Use With
    Accuracy
    Each
    1/4 NPT Female Threaded Pipe Connection
    0 to 22 to 2.52.5 to 3.5300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K210000000
    0 to 33 to 4.54.5 to 5300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K22000000
    0 to 66 to 99 to 12300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K24000000
    0 to 7.57.5 to 1212 to 15300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K25000000
    0 to 1313 to 2020 to 30300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K27000000
    0 to 19.519.5 to 29.529.5 to 43300-40 to 200-40 to 2003 1/4"3 1/4"1 1/2"BlackAir, Water, Hydraulic Fluid, Carbon Dioxide, Nitrogen, Hydrogen, Argon, Acetylene±5%2238K28000000
     

    Gauge Guards

    Also known as isolators or diaphragm seals, these protect gauges from corrosive process media. Fill guards with hydraulic oil (not included) before use.
    316 Stainless Steel Body
    Image of Product. Bottom orientation. 316 Stainless Steel Body. Gauge Guards.
    316 stainless steel guards provide excellent corrosion and chemical resistance and can handle higher temperatures and pressures than plastic guards.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket Material
    For Use With
    Min. Pressure,
    psi
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/4 NPT Female1/4 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3001 3/4"3882K510000000
    1/2 NPT Female1/4 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3001 3/4"3882K52000000
    1/2 NPT Female1/2 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3001 1/2"3882K53000000
    316 Stainless Steel Body with 1/4 NPT Female Drain Port
    Image of Product. Front orientation. 316 Stainless Steel Body. Gauge Guards, 1/4 NPT Female Drain Port.
    316 stainless steel guards provide excellent corrosion and chemical resistance and can handle higher temperatures and pressures than plastic guards.
    Guards with drain port allow you to remove process media.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket Material
    For Use With
    Min. Pressure,
    psi
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/4 NPT Female1/4 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3002"3882K540000000
    1/2 NPT Female1/4 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3002"3882K55000000
    1/2 NPT Female1/2 NPT Female316 Stainless Steel
    		Acetylene, Air, Ammonia, Argon, Boric Acid, Carbon Dioxide, Deionized Water, Diesel Fuel, Ethanol, Ethyl Alcohol, Gasoline, Hydraulic Fluid, Hydraulic Oil, Hydrogen, Liquid Nitrogen, Mineral Oil, Natural Gas, Nitrogen, Oxygen, Refrigerant, Salt Water, Sodium Hypochlorite (Bleach), Steam, Water602,500 psi @ 72° F3002"3882K56000000

    Sanitary Gauge Guards

    Keeping corrosive substances from touching pressure gauges used in food-processing and pharmaceutical plants, these guards have a sanitary design. Made of 316 stainless steel, they won’t rust from frequent washdowns with harsh cleaners and sanitizers. They have continuously-welded seams and polished surfaces, so there aren’t any pits for bacteria to grow in. Removing them for cleaning and maintenance is easy thanks to their quick-clamp connection, which is sometimes called a tri-clamp.
    Also known as isolators and diaphragm seals, these guards have a 316 stainless steel gasket to shield the pressure gauges from corrosion. Before use, fill the guards with fluid such as glycerin or silicone that’s suitable for food contact.
    316 Stainless Steel Body
    Image of Product. Front orientation. Gauge Guards. Sanitary Gauge Guards.
    Outlet Quick-Clamp
    Tube Connection
    Inlet Pipe
    Connection
    For Tube
    OD
    Flange
    OD
    Gasket Material
    For Use With
    Min. Pressure,
    psi
    Max. Pressure
    @ Temp.
    Max.
    Temp.
    Ht.
    Interior Smoothness,
    Ra
    Each
    1/4 NPT Female1 1/2"1.984"316 Stainless Steel
    		Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water30Not RatedNot Rated1 3/8"326363N110000000
    1/4 NPT Female2"2.516"316 Stainless Steel
    		Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water30Not RatedNot Rated1 1/8"326363N12000000
    1/2 NPT Female1 1/2"1.984"316 Stainless Steel
    		Acetylene, Air, Ammonia, Beverage, Boric Acid, Carbon Dioxide, Diesel Fuel, Ethanol, Food, Gasoline, Hydraulic Fluid, Hydrogen, Oxygen, Pharmaceuticals, Wastewater, Water30Not RatedNot Rated1 3/8"326363N13000000

    Low-Pressure Differential Gauges with U-Tube

    Also known as manometers, these gauges come with indicating liquid that moves up and down two columns—the difference in height between them is your pressure. They are commonly used to indicate clogged filters.
    Nylon Connections (Inches of Water)
    Image of Product. Front orientation. Differential Pressure Gauges. Low-Pressure Differential Gauges with U-Tube, Nylon Connection.
    Barbed Fitting Connection—Gauges with barbed tube connection have a flexible body that rolls up for storage or transport.
    Magnetic—Magnet-mount gauges can be moved for use in multiple locations.
    Environment
    Temperature Change
    Process
    Temperature Range
    Pressure,
    in. H₂O
    Pressure Scale
    Range
    Pressure Numeric
    Increments, in. H₂O
    Graduations,
    in. H₂O
    Max.
    Pressure
    Ht.
    Min.
    Max.
    Min.
    Max.,
    ° F
    Mount
    Type
    For Use With
    Accuracy
    Each
    Male Barbed Tubes for 3/16" Tube IDs
    0 to 84-0-4 In. of H₂O10.1Not Rated17"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K110000000
    0 to 126-0-6 In. of H₂O10.1Not Rated21"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K12000000
    0 to 168-0-8 In. of H₂O10.1Not Rated25"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K13000000
    0 to 2412-0-12 In. of H₂O10.1Not Rated33"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K14000000
    0 to 3015-0-15 In. of H₂O10.1Not Rated39"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K15000000
    0 to 3618-0-18 In. of H₂O10.1Not Rated45"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K16000000
    0 to 4824-0-24 in of H₂O10.1Not Rated57"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K17000000
    0 to 6030-0-30 In. of H₂O10.1Not Rated69"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K18000000
    0 to 7236-0-36 In. of H₂O10.1Not Rated81"Not RatedNot RatedNot Rated130MagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3986K19000000
     
    Brass Connections (Inches of Water)
    Image of Product. Front orientation. Differential Pressure Gauges. Low-Pressure Differential Gauges with U-Tube, Brass Connection.
    Magnetic—Magnet-mount gauges can be moved for use in multiple locations.
    Environment
    Temperature Change
    Process
    Temperature Range
    Pressure,
    in. H₂O
    Pressure Scale
    Range
    Pressure Numeric
    Increments, in. H₂O
    Graduations,
    in. H₂O
    Max. Pressure,
    psi
    Ht.
    Min.
    Max.
    Min.
    Max.
    Mount
    Type
    For Use With
    Accuracy
    Each
    Female Compression Tubes for 1/4" ODs
    0 to 84-0-4 In. of H₂O10.110020"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K410000000
    0 to 126-0-6 In. of H₂O10.110025"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K42000000
    0 to 168-0-8 In. of H₂O10.110030"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K13000000
    0 to 2010-0-10 In. of H₂O10.110034"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K14000000
    0 to 2412-0-12 In. of H₂O10.110039"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K15000000
    0 to 3618-0-18 In. of H₂O10.110058"Not RatedNot RatedNot RatedNot RatedMagneticAir, Carbon Dioxide, Hydrogen, ArgonNot Rated3985K17000000
     

    Pressure-Regulating Valves for Fuel Gases

    Image of Product. With T-Handle. Front orientation. Pressure-Regulating Valves. Pressure-Regulating Valves for Fuel Gases, Female Inlet, Brass Body, Outlet-Pressure-Adjustment T-Handle.

    With T-Handle

    Install these valves directly in gas distribution pipelines for acetylene, hydrogen, or propane. They automatically reduce a high inlet pressure to a lower, stable outlet pressure. Valves have two outlets to fit various pipe configurations and come with a plug to close the unused outlet. The gauge monitors outlet pressure. All valves are single stage and reduce pressure in one step, which causes the outlet pressure to fluctuate.
    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
    Lg.
    For Use With
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    Pressure Gauge Measurement
    Range, psi
    Temp. Range,
    ° F
    End-to-End
    Port-to-Port
    Each
    NPT Female
     
    Brass Body—Stainless Steel Diaphragm and Neoprene Seal
    Hydrogen, Propane1/4
    		Side5001/4
    		Bottom, SideT-Handle0 to 2000 to 1202.400"1.01"7864A120000000
     

    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.
    Single Stage
    Image of Product. Male Outlet × Female Inlet Single-Stage Valve With T-Handle. Front orientation. Pressure-Regulating Valves. Tank-Mount Pressure-Regulating Valves for Fuel Gases, Single Stage, Female Inlet, Male Outlet, UNF Outlet Thread, Outlet-Pressure-Adjustment T-Handle.

    Male Outlet × Female

    Inlet Single-Stage Valve

    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
    Thread
    Size
    Location
    Thread
    Direction
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Body
    Seal
    Diaphragm
    Temp. Range,
    ° F
    Each
    For Hydrogen
     
    UNF Male Outlet × NGO Female Inlet
    350
    		SideLeft Hand
    		0 to 4,0009/16"-18
    		SideLeft Hand
    		0 to 125T-HandleBrassPTFERubber-20 to 1207897A50000000
     
    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
     

    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 Helium and Hydrogen
    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 100 scfh (Helium), 0 to 140 scfh (Hydrogen)1BrassPTFENeoprene78595A4990000000
     
    Valve Union Fittings
    Adapters change 5/8"-18 outlets to 9/16"-18 male connections, and vice versa.
    Each
    Adapter78595A49000000
    For Hydrogen
    Image of Product. Female Inlet × Male Outlet With One Flowmeter. Front orientation. Pressure-Regulating Valves. Easy-Read Tank-Mount Pressure-Regulating Valves with Flowmeter for Inert Gas, Female Inlet, Male Outlet, UNF Outlet Thread, Single Stage, 1 Flowmeter.

    Female Inlet ×

    Male 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 Male Outlet × NGO Female Inlet
    350
    		SideLeft Hand
    		0 to 3,000Single9/16"-18
    		SideLeft Hand
    		0 scfh to 40 scfh1BrassPTFENeoprene78595A4980000000
     
    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 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, Chrome-Plated 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, Chrome-Plated Brass Body, Two Stage.

    Two Stage

    Designed to reduce contaminants in high-purity applications using hydrogen and methane gas, these valves have a smooth finish to reduce dust collection and internal components designed to protect the seal and diaphragm from contamination. A chrome plating adds a layer of corrosion resistance. 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
     
    Chrome-Plated Brass 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 1207951A350000000
    350
    		SideLeft Hand
    		0 to 4,000Single1/4"Side0 to 125KnobHydrogen, Methane-20 to 1207951A31000000
    350
    		SideLeft Hand
    		0 to 4,000Two1/4"Side0 to 125KnobHydrogen, Methane-20 to 1207951A33000000
    350
    		SideLeft Hand
    		0 to 4,000Two1/4"Side0 to 500KnobHydrogen, Methane-20 to 1207951A36000000
     
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