McMaster-Carr logo
    Filter by
    System of Measurement
    Pipe Size
    Industrial Info Compare
    Connection Location
    Dial Diameter
    Connection Material
    Thread Type
    Fitting Connection
    Gender
    Scale Type
    Measures
    Connects To
    Display Type
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Comments
    E-mail address (if you would like a response)
    28 Products
    About Pressure Gauges
    industrial info icon

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

    Vibration-Resistant Pressure Gauges for Chemicals

    These gauges have a glycerin-filled dial that reduces needle flutter for precise readings in high-vibration applications reaching 2,000 psi. A 316 stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Use them with pumps, filters, regulators, and in process lines to measure and display pressure.
    304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (Pounds per Square Inch, Kilopascals)
    Image of Product. Front orientation. Pressure Gauges. Vibration-Resistant Pressure Gauges for Chemicals.
    Image of Attribute. Bottom
Connection. Front orientation. Vibration-Resistant Pressure Gauges for Chemicals, Bottom Connection.

    Bottom Connection

    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Environment
    Process
    Liquid
    Type
    For Use With
    Accuracy
    Guard Material
    Choose a Pressure Range
    Each
    Any-Angle Mount
     
    NPT Female
    2 1/2"1/4
    35 to 1400 to 210GlycerinAir
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa, 0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K50000000
    2 1/2"1/2
    35 to 1400 to 210GlycerinAir
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa, 0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K6000000
    4"1/4
    35 to 1400 to 210GlycerinAir
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa, 0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K7000000
    4"1/2
    35 to 1400 to 210GlycerinAir
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa, 0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K8000000
     

    Low-Pressure Gauges for Chemicals

    A plastic or stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Use them with pumps, filters, regulators, and in process lines to measure and display pressures.
    304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (Pounds per Square Inch, Kilopascals)
    Image of Product. 316 Stainless Steel Guard. Front orientation. 316 Stainless Steel Guard. Low-Pressure Gauges for Chemicals.
    Image of Attribute. Bottom Connection (316 Stainless Steel Guard). Front orientation. Low-Pressure Gauges for Chemicals, Bottom Connection, 316 Stainless Steel Guard.

    316 Stainless

    Steel Guard

    Bottom

    Connection

    (316

    Stainless

    Steel

    Guard)

    316 Stainless Steel Guard—Polypropylene and 316 stainless steel guards are more chemical resistant than PVC and CPVC guards.
    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Environment
    Process
    For Use With
    Accuracy
    Guard Material
    Choose a Pressure Range
    Each
    Any-Angle Mount
     
    NPT Female
    2 1/2"1/4
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa3813K130000000
    2 1/2"1/2
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa3813K14000000
    4"1/4
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa3813K11000000
    4"1/2
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 15 psi/0 to 100 kPa, 0 to 30 psi/0 to 200 kPa, 0 to 60 psi/0 to 400 kPa, 0 to 100 psi/0 to 700 kPa, 0 to 160 psi/0 to 1,100 kPa3813K12000000
     
    Painted Steel Case with PVC Connection—Dual Scale (Pounds per Square Inch, Kilograms per Square Centimeter)
    Image of Product. PVC Guard. Front orientation. PVC Guard. Low-Pressure Gauges for Chemicals.
    Image of Attribute. Bottom Connection (PVC, CPVC, and Polypropylene Guards). Front orientation. Low-Pressure Gauges for Chemicals, Bottom Connection, PVC Guard.

    PVC Guard

    Bottom

    Connection

    (PVC, CPVC,

    and

    Polypropylene

    Guards)

    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    For Use With
    Accuracy
    Guard
    Material
    Guard
    Color
    Choose a Pressure Range
    Each
     
    NPT Female
    2"1/4
    Black40 to 14040 to 140Boric Acid
    Carbon Dioxide
    Hydraulic Fluid
    Salt Water
    Sodium Hypochlorite (Bleach)
    Water
    ±2% Midscale (Grade B)PVC
    Gray0 to 30 psi/0 to 2.1 kg per cm², 0 to 60 psi/0 to 4.2 kg per cm², 0 to 150 psi/0 to 11.2 kg per cm²4091K230000000
    2"1/2
    Black40 to 14040 to 140Boric Acid
    Carbon Dioxide
    Hydraulic Fluid
    Salt Water
    Sodium Hypochlorite (Bleach)
    Water
    ±2% Midscale (Grade B)PVC
    Gray0 to 30 psi/0 to 2.1 kg per cm², 0 to 60 psi/0 to 4.2 kg per cm², 0 to 150 psi/0 to 11.2 kg per cm²4091K24000000
     
    Painted Steel Case with CPVC Connection—Dual Scale (Pounds per Square Inch, Kilograms per Square Centimeter)
    Image of Product. CPVC Guard. Front orientation. CPVC Guard. Low-Pressure Gauges for Chemicals.
    Image of Attribute. Bottom Connection (PVC, CPVC, and Polypropylene Guards). Front orientation. Low-Pressure Gauges for Chemicals, Bottom Connection, CPVC Guard.

    CPVC Guard

    Bottom

    Connection

    (PVC, CPVC,

    and

    Polypropylene

    Guards)

    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Case
    Color
    Environment
    Process
    For Use With
    Accuracy
    Guard
    Material
    Guard
    Color
    Choose a Pressure Range
    Each
     
    NPT Female
    2"1/4
    Black40 to 19040 to 190Boric Acid
    Carbon Dioxide
    Hydraulic Fluid
    Salt Water
    Sodium Hypochlorite (Bleach)
    Water
    ±2% Midscale (Grade B)CPVC
    Gray0 to 30 psi/0 to 2.1 kg per cm², 0 to 60 psi/0 to 4.2 kg per cm², 0 to 150 psi/0 to 11.2 kg per cm²4147K410000000
    2"1/2
    Black40 to 19040 to 190Boric Acid
    Carbon Dioxide
    Hydraulic Fluid
    Salt Water
    Sodium Hypochlorite (Bleach)
    Water
    ±2% Midscale (Grade B)CPVC
    Gray0 to 30 psi/0 to 2.1 kg per cm², 0 to 60 psi/0 to 4.2 kg per cm², 0 to 150 psi/0 to 11.2 kg per cm²4147K42000000
     

    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
    PVC Body
    Image of Product. Front orientation. PVC Body. Gauge Guards.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket
    Material
    For Use With
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/4 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F1402 3/4"4143K110000000
    1/2 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F1402 3/4"4143K21000000
    CPVC Body
    Image of Product. Front orientation. CPVC Body. Gauge Guards.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket
    Material
    For Use With
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/4 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F1902 3/4"4334K310000000
    1/2 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F1902 3/4"4334K41000000
    Polypropylene Body
    Image of Product. Front orientation. Polypropylene Body. Gauge Guards.
    Polypropylene guards are more chemical resistant than PVC and CPVC guards.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket
    Material
    For Use With
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/4 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Carbon Dioxide, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F2402 3/4"4199K510000000
    PVDF Body
    Image of Product. Front orientation. PVDF Body. Gauge Guards.
    PVDF guards are more chemical resistant than PVC and CPVC guards.
    Pipe
    Connections
    Inlet
    Outlet
    Gasket
    Material
    For Use With
    Max. Pressure
    @ Temp.
    Max. Temp.,
    ° F
    Ht.
    Each
    1/2 NPT Female1/4 NPT FemaleFluoroelastomer
    Boric Acid, Carbon Dioxide, Hydraulic Fluid, Salt Water, Sodium Hypochlorite (Bleach), Water150 psi @ 72° F3002 3/4"4354K810000000

    High-Pressure Gauges for Chemicals

    A 316 stainless steel guard, also known as an isolator, protects the gauge from damage caused by corrosive chemicals. Gauges are commonly used with pumps, filters, regulators, and in process lines to measure and display pressures up to 2,000 psi.
    304 Stainless Steel Case with 316 Stainless Steel Connection—Dual Scale (Pounds per Square Inch, Kilopascals)
    Image of Product. Front orientation. Pressure Gauges. High-Pressure Gauges for Chemicals.
    Image of Attribute. Bottom
Connection. Front orientation. High-Pressure Gauges for Chemicals, Bottom Connection.

    Bottom Connection

    Temp.
    Range, ° F
    Bottom
    Connection
    Dial
    Dia.
    Pipe
    Size
    Environment
    Process
    For Use With
    Accuracy
    Guard Material
    Choose a Pressure Range
    Each
    Any-Angle Mount
     
    NPT Female
    2 1/2"1/4
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K30000000
    2 1/2"1/2
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K4000000
    4"1/4
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K1000000
    4"1/2
    -40 to 1400 to 210Air
    Ammonia
    Boric Acid
    Diesel Fuel
    Gasoline
    Hydraulic Fluid
    Natural Gas
    Sodium Hypochlorite (Bleach)
    Water
    ±1.6% Full Scale (Not Rated)316 Stainless Steel
    0 to 200 psi/0 to 1,400 kPa, 0 to 300 psi/0 to 2,000 kPa, 0 to 400 psi/0 to 2,800 kPa, 0 to 600 psi/0 to 4,000 kPa, 0 to 1,000 psi/0 to 7,000 kPa, 0 to 2,000 psi/0 to 14,000 kPa3813K2000000
     
    back to top