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    40 Products

    Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas

    Unlike valves that release discharge directly, these have a threaded relief port to direct discharge away from your work environment. They spring fully open at the set pressure and remain fully open until the system pressure is restored below the set pressure. All meet ASME Code Section VIII for use with air and inert gas pressure vessels. Body is bronze for durability and a long service life.
    1 1/4 NPT Male Bottom Inlet × 1 1/2 NPT Female Side Pipe Relief Port
    Image of Product. Valve. Front orientation. Pressure-Relief Valves. Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas, Male Inlet, Female Relief Port, Bronze Body.
    Image of Product. Valve With Test Lever. Front orientation. Pressure-Relief Valves. Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas, Male Inlet, Female Relief Port, Bronze Body, Lever.

    Valve

    Valve With

    Test Lever

    Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.
    Material
    Seal
    Body
    Temp. Range,
    ° F
    Test
    Mechanism
    Overall
    Ht.
    Valve
    Type
    For Use With
    Certification
    Choose a Set Pressure, psi
    Each
    BrassBronze-60 to 406Lever9 5/8"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    ,
    275
    ,
    300
    00000000000000
    BrassBronze-15 to 4068 5/16"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
    BrassBronze-15 to 406Lever8 3/4"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
    FluoroelastomerBronze-15 to 406Lever9 5/8"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    ,
    275
    ,
    300
    0000000000000
    1 1/2 NPT Male Bottom Inlet × 2 NPT Female Side Pipe Relief Port
    Image of Product. Valve. Front orientation. Pressure-Relief Valves. Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas, Female Relief Port, Male Inlet, Bronze Body.
    Image of Product. Valve With Test Lever. Front orientation. Pressure-Relief Valves. Remote-Discharge ASME-Code Fast-Acting Pressure-Relief Valves for Air and Inert Gas, Female Relief Port, Male Inlet, Bronze Body, Lever.

    Valve

    Valve With

    Test Lever

    Fluoroelastomer Seal—Fluoroelastomer seals provide better leak protection than brass or 316 stainless steel seals.
    Material
    Seal
    Body
    Temp. Range,
    ° F
    Test
    Mechanism
    Overall
    Ht.
    Valve
    Type
    For Use With
    Certification
    Choose a Set Pressure, psi
    Each
    BrassBronze-60 to 406Lever10 5/8"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    ,
    275
    ,
    300
    00000000000000
    BrassBronze-15 to 4069 7/16"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
    BrassBronze-15 to 406Lever9 3/4"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
    FluoroelastomerBronze-15 to 406Lever10 5/8"Pop SafetyAir, Inert GasASME BPVC.VIII
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    105
    ,
    110
    ,
    115
    ,
    120
    ,
    125
    ,
    130
    ,
    135
    ,
    140
    ,
    145
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    ,
    275
    ,
    300
    0000000000000

    ASME-Code Fast-Acting Pressure-Relief Valves for Steam

    These valves meet ASME Code Section I for use with steam power boilers requiring pressure relief above 15 psi. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. For remote discharge, attach a drain line to the threaded relief port. Valves have a durable bronze body for a long service life.
    NPT Male Inlet and NPT Female Relief Port
    Image of Product. Valve With Test Lever. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Steam, Female Relief Port, Male Inlet, Bronze Body, 90° Elbow, For Steam, Lever.
    Image of Product. Valve With Swivel Test Lever. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Steam, Female Relief Port, Male Inlet, Bronze Body, 90° Elbow, For Steam, Lever, Swivel.

    Valve

    With Test

    Lever

    Valve With

    Swivel Test

    Lever

    Swivel—Swivel test levers rotate 360° around the valve for use in areas with limited clearance.
    Inlet
    Relief
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Shape
    Overall
    Ht.
    For Use
    With
    Temp. Range,
    ° F
    Test
    Mechanism
    Test Lever
    Type
    Valve
    Type
    Certification
    Choose a Set Pressure, psi
    Each
     
    Bronze Body—Brass Seal
    1 1/4
    Bottom2501 1/2
    Side90° Elbow9 5/8"Steam-60 to 400LeverPop SafetyASME BPVC.I
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    125
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    00000000000000
    1 1/2
    Bottom2501 1/2
    Side90° Elbow9 5/8"Steam-60 to 400LeverSwivelPop SafetyASME BPVC.I
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    125
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
    1 1/2
    Bottom2502
    Side90° Elbow10 5/8"Steam-60 to 400LeverPop SafetyASME BPVC.I
    15
    ,
    20
    ,
    25
    ,
    30
    ,
    35
    ,
    40
    ,
    45
    ,
    50
    ,
    55
    ,
    60
    ,
    65
    ,
    70
    ,
    75
    ,
    80
    ,
    85
    ,
    90
    ,
    95
    ,
    100
    ,
    125
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    0000000000000
     

    ASME-Code Fast-Acting Pressure-Relief Valves for Water

    Image of Product. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Water.
    These valves meet ASME Code Section VIII for use with water pressure vessels. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All have a threaded relief port that can be attached to a drain line for remote discharge. Body is bronze for durability and a long service life.
    Inlet
    Relief
    Pipe
    Size
    Location
    Port Pipe
    Size
    Port
    Location
    Overall
    Ht.
    Valve
    Type
    Certification
    For Use
    With
    Temp. Range,
    ° F
    Choose a Set Pressure, psi
    Each
    NPT Male Inlet and NPT Female Relief Port
     
    Bronze Body—316 Stainless Steel Seal
    1 1/2
    Bottom2
    Side13 1/4"Pop SafetyASME BPVC.VIII
    Water-60 to 406
    20
    ,
    30
    ,
    40
    ,
    50
    ,
    60
    ,
    70
    ,
    80
    ,
    90
    ,
    100
    ,
    125
    ,
    150
    ,
    175
    ,
    200
    ,
    225
    ,
    250
    ,
    275
    ,
    300
    00000000000000
     

    ASME-Code Fast-Acting Pressure-Relief Valves for Hot Water

    Image of Product. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Hot Water.
    Protect your water-heating system with these valves that meet ASME Code Section IV for hot water heaters and boilers. They spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. All have a threaded relief port that can be attached to a drain line for remote discharge. Valves have a durable bronze body for a long service life.
    Inlet
    Relief
    Pipe
    Size
    Location
    Port Pipe
    Size
    Port
    Location
    Overall
    Ht.
    Test
    Mechanism
    Valve
    Type
    For Use
    With
    Certification
    Temp. Range,
    ° F
    Choose a Set Pressure, psi
    Each
    NPT Female Inlet and Relief Port
     
    Bronze Body—Silicone Seal
    1 1/4
    Bottom1 1/2
    Side8 3/8"LeverPop SafetyWaterASME BPVC.IV
    33 to 250
    30
    ,
    50
    ,
    60
    ,
    75
    ,
    100
    ,
    125
    ,
    150
    00000000000000
    1 1/2
    Bottom2
    Side10 13/16"LeverPop SafetyWaterASME BPVC.IV
    33 to 250
    30
    ,
    50
    ,
    60
    ,
    75
    ,
    100
    ,
    125
    ,
    150
    0000000000000
     

    Back-Pressure-Regulating Valves for Water and Oil

    Image of Product. Front orientation. Pressure-Regulating Valves. Back-Pressure-Regulating Valves for Water and Oil.
    Commonly used as bypass lines after centrifugal, reciprocating, and rotary pumps, these valves obstruct flow to maintain sufficient operating pressure in your system. If the system pressure exceeds the set pressure, they exhaust through the threaded relief port. Adjust the set pressure within the range. Valves have a cast iron body that absorbs vibration from pressure changes to reduce wear and noise in your pipeline.
    Inlet
    Outlet
    Relief
    Port
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    Pipe
    Size
    Location
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Cast Iron Body—Nickel Diaphragm and 303 Stainless Steel Seal
    1 1/2
    Side4001 1/2
    SideScrew1 1/2
    Bottom5"Water, Oil-40 to 200
    10 to 55
    ,
    30 to 100
    ,
    40 to 200
    ,
    125 to 300
    ,
    200 to 400
    0000000000000000
     

    ASME-Code Fast-Acting Pressure-Relief Valves for Low-Pressure Steam

    For use with low-pressure steam-heating boilers requiring pressure relief at 15 psi, these valves meet ASME Code Section IV. All spring fully open at the set pressure and remain open until the system pressure is restored below the set pressure. Body is bronze for durability and a long service life.
    90° Elbow
    Image of Product. Front orientation. Pressure-Relief Valves. ASME-Code Fast-Acting Pressure-Relief Valves for Low-Pressure Steam, 90° Elbow.
    Threaded—Threaded relief ports can be attached to a drain line for remote discharge.
    Inlet
    Relief
    Pipe
    Size
    Thread
    Type
    Gender
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Port Fitting
    Connection
    Port Thread
    Type
    Port
    Gender
    Port
    Location
    Steam Flow
    Cap., lb/hr
    Set Pressure,
    psi
    Overall
    Ht.
    Test
    Mechanism
    Valve
    Type
    For Use
    With
    Certification
    Max. Temp.,
    ° F
    Each
    Bronze Body—PTFE-Coated EPDM Seal
    1 1/4
    NPT
    MaleBottom151 1/2
    PipeThreadedNPT
    FemaleSide1,200154 1/2"LeverPop SafetySteamASME BPVC.IV
    25000000000000000
    1 1/2
    NPT
    MaleBottom152
    PipeThreadedNPT
    FemaleSide1,900155 1/4"LeverPop SafetySteamASME BPVC.IV
    2500000000000000
     

    Pressure-Relief Valves for Oil

    These valves are often used in hydraulic and lubrication systems. They begin opening at the set pressure and fully open at about 10% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Adjust the set pressure within the range.
    NPT Male Inlet and NPT Female Relief Port
    Image of Product. Front orientation. Pressure-Relief Valves. Pressure-Relief Valves for Oil.
    Inlet
    Relief
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Set Pressure Adjustment
    Method
    Shape
    Overall
    Ht.
    For Use
    With
    Temp. Range,
    ° F
    Valve
    Type
    Choose a Set Pressure, psi
    Each
     
    Bronze Body—316 Stainless Steel Seal
    1 1/2
    Bottom1,4001 1/2
    SideExternal Adjustment Screw90° Elbow8 7/8"Oil-320 to 420Relief
    15 to 75
    ,
    50 to 150
    ,
    100 to 300
    ,
    200 to 600
    0000000000000000
     

    Fast-Acting Temperature- and Pressure-Relief Valves for Hot Water

    Also known as T & P valves, these open when water temperature reaches 210° F or at the set pressure. They are commonly used with water heaters and storage tanks. All spring fully open at a water temperature of 210° F or the set pressure and remain open until the system is restored below the set point. For remote discharge, valves have a threaded relief port to attach a drain line. Body is bronze for durability and a long service life.
    NPT Male Inlet and NPT Female Relief Port
    Image of Product. Male × Female. Front orientation. Contains Annotated. Pressure-Relief Valves. Fast-Acting Temperature- and Pressure-Relief Valves for Hot Water, Female Relief Port, Male Inlet.

    Male × Female

    ASME BPVC.IV Certified—Valves with 3/4 to 2 pipe size meet ASME Code Section IV for hot water.
    Inlet
    Relief
    Set
    Pressure
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Range,
    psi
    Temp.,
    ° F
    Shape
    Hot Water Flow
    Cap., BTU/hr
    Insertion
    Lg.
    Valve
    Ht.
    Overall
    Ht.
    For Use
    With
    Test
    Mechanism
    Valve
    Type
    Certification
    Each
     
    Bronze Body—Silicone Seal
    2
    Bottom1501 1/2
    Side15021090° Elbow1,200,0003"8 1/2"11 1/2"WaterLeverPop SafetyASME BPVC.IV, CSA Certified
    00000000000000
     

    Precision-Adjustment Pressure-Relief Valves for Fuel

    A finely threaded adjustment screw lets you make precise set pressure adjustments. These valves are for use with diesel fuel, fuel oil, gasoline, and kerosene. They begin opening at the set pressure and fully open at about 10% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Adjust the set pressure within the range.
    NPT Male Inlet and NPT Female Relief Port
    Image of Product. Front orientation. Pressure-Relief Valves. Precision-Adjustment Pressure-Relief Valves for Fuel.
    Bronze Body—Valves with a bronze body are harder and more durable than valves with a brass body for a longer service life.
    Inlet
    Relief
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Set Pressure Adjustment
    Method
    Shape
    Overall
    Ht.
    For Use With
    Temp. Range,
    ° F
    Valve
    Type
    Choose a Set Pressure, psi
    Each
     
    Bronze Body—Bronze Seal
    1 1/2
    Bottom4001 1/2
    SideExternal Adjustment Screw90° Elbow9 1/2"Diesel Fuel, Fuel Oil, Gasoline, Kerosene-60 to 450Relief
    0 to 14
    ,
    15 to 25
    ,
    26 to 40
    ,
    41 to 75
    ,
    76 to 110
    ,
    111 to 130
    ,
    131 to 150
    ,
    151 to 200
    ,
    201 to 400
    00000000000000
     

    Adjustable Pressure-Relief Valves for Fuel

    To gradually relieve pressure in lines for diesel fuel, fuel oil, gasoline, and kerosene, these valves begin opening at the set pressure and fully open at about 10% over the set pressure. They begin closing as pressure drops and close when the system pressure is restored below the set pressure. Adjust the set pressure within the range.
    NPT Female Inlet and Relief Port
    Image of Product. Front orientation. Pressure-Relief Valves. Adjustable Pressure-Relief Valves for Fuel.
    Inlet
    Relief
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Set Pressure Adjustment
    Method
    Shape
    Overall
    Ht.
    For Use With
    Temp. Range,
    ° F
    Valve
    Type
    Choose a Set Pressure, psi
    Each
     
    Brass Body—416 Stainless Steel Seal
    1 1/2
    Bottom1,0001 1/2
    SideExternal Adjustment Screw90° Elbow11 1/16"Diesel Fuel, Fuel Oil, Gasoline, Kerosene-20 to 400Relief
    3 to 10
    ,
    7 to 35
    ,
    30 to 100
    ,
    60 to 175
    ,
    150 to 350
    ,
    300 to 500
    00000000000000
     

    Heavy Duty Pressure-Regulating Valves for Water and Air

    Image of Product. Front orientation. Pressure-Regulating Valves. Heavy Duty Pressure-Regulating Valves for Water and Air.
    Thicker walls and a 304 stainless steel seal make these valves tougher than brass pressure-regulating valves. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have an internal strainer to trap debris. Body is bronze for durability and a long service life.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Bronze Body—EPM Rubber Diaphragm and 304 Stainless Steel Seal with Internal Strainer
    1 1/2
    Side3001 1/2
    SideScrew8 7/8"Water, Air32 to 180
    20 to 70
    ,
    71 to 150
    0000000000000000
     

    Adjustable Pressure-Relief Valves for Chemicals

    Often used with catalysts, pH buffers, and electroplating solutions, these valves have a PVC body and an EPDM seal for excellent chemical resistance. They begin opening at the set pressure and fully open at about 10% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. Adjust the set pressure within the range. Valves have a port for attaching a pressure gauge.
    NPT Female Inlet and Relief Port
    Image of Product. Front orientation. Pressure-Relief Valves. Adjustable Pressure-Relief Valves for Chemicals.
    Inlet
    Relief
    Set Pressure
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Port Pipe
    Size
    Port
    Location
    Range,
    psi
    Adjustment Method
    Shape
    Features
    Overall
    Ht.
    Gauge Port
    Pipe Size
    For Use With
    Temp. Range,
    ° F
    Valve
    Type
    Each
     
    Dark Gray PVC Body—EPDM Seal
    1 1/2
    Bottom1501 1/2
    Side5 to 75External Adjustment Screw90° ElbowGauge Port13 1/4"1/4
    Aluminum Chloride, Boric Acid40 to 140Relief0000000000000000
     

    Quick-Set Pressure-Regulating Valves for Water

    Image of Product. Front orientation. Pressure-Regulating Valves. Quick-Set Pressure-Regulating Valves for Water.
    Change outlet pressure without using a gauge—turn the dial to adjust the outlet pressure in 5 or 10 psi increments. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. They also have an internal strainer to trap debris. Union fittings on both ends of the valves disassemble for easy valve installation and removal. All of these valves meet Canadian safety standards for pressure-reducing valves. Some also meet American and international plumbing safety and performance standards.
    Brass Body—Brass valves are durable and have a long service life. Their gauge ports let you attach a pressure gauge to measure the pressure flowing in and out of the valve.
    Inlet
    Outlet
    Gauge Port
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Pipe
    Size
    Location
    Connection
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Certification
    Each
    NPT Female
     
    Brass Body—EPDM Diaphragm and Seal
    1 1/2
    Side2501 1/2
    Side25 to 90Dial1/4
    SideNPT Female7 7/8"Water33 to 140CSA Certified
    000000000000000
     

    Flange-Mount Pressure-Relief Discs

    Install these discs within the bolt circle of ANSI Class 150 flanges. They break open at the burst pressure to allow unrestricted flow. All are for one-time use. Discs are made of resin-filled graphite for resistance to temperature and pressure fluctuations as well as corrosive liquids and gases. They include two gaskets for installation between flanges.
    Pressure-Relief Discs
    Image of Product. Front orientation. Pressure-Relief Discs. Flange-Mount Pressure-Relief Discs.
    Operating Ratio—Operating ratio is the ratio between the normal operating pressure and the burst pressure. Exceeding the operating ratio decreases the service life of the disc. For example, a disc with a burst pressure of 100 psi and an operating ratio of 80% should not be used in a system with an operating pressure greater than 80 psi.
    Pipe
    Size
    For Flange
    ANSI Class
    OD
    Thk.
    Operating
    Ratio
    Temp. Range,
    ° F
    Gasket
    Material
    Valve Type
    Choose a Burst Pressure, psi
    Each
    Graphite Body—Resin-Filled Graphite Disc
    1 1/2
    150
    3 1/4"1 1/8"80%-20 to 300Neoprene
    Rupture Disc
    20
    ,
    25
    ,
    30
    ,
    40
    ,
    50
    ,
    60
    ,
    75
    ,
    100
    ,
    125
    ,
    150
    ,
    175
    ,
    200
    ,
    250
    000000000000000
     
    Vacuum Rated Pressure-Relief Discs
    Image of Product. Front orientation. Pressure-Relief Discs. Flange-Mount Pressure-Relief Discs, Vacuum Rated Pressure-Relief Discs .
    Vacuum-rated discs have supports to resist rupture caused by vacuum.
    Operating Ratio—Operating ratio is the ratio between the normal operating pressure and the burst pressure. Exceeding the operating ratio decreases the service life of the disc. For example, a disc with a burst pressure of 100 psi and an operating ratio of 80% should not be used in a system with an operating pressure greater than 80 psi.
    Pipe
    Size
    For Flange
    ANSI Class
    OD
    Thk.
    Max. Vacuum,
    in. Hg
    Operating
    Ratio
    Temp. Range,
    ° F
    Gasket
    Material
    Valve Type
    Choose a Burst
    Pressure, psi
    Each
    Graphite Body—Resin-Filled Graphite Disc
    1 1/2
    150
    3 1/4"1 1/8"29.9280%-20 to 300Neoprene
    Rupture Disc
    10
    ,
    15
    000000000000000
     

    Vibration-Damping Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

    Image of Product. Front orientation. Pressure-Regulating Valves. Vibration-Damping Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas.
    A cast iron body absorbs vibration from pressure changes to reduce wear and noise in your pipeline. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
    Internal Strainer—Internal strainers trap debris.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Cast Iron Body—Buna-N Diaphragm and Seal with Internal Strainer
    1 1/2
    Side2001 1/2
    SideScrew6 3/4"Water, Oil, Air, Inert Gas32 to 180
    2 to 15
    ,
    10 to 30
    ,
    20 to 50
    ,
    45 to 100
    ,
    90 to 125
    00000000000000
     

    Long-Life Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

    Image of Product. Front orientation. Pressure-Regulating Valves. Long-Life Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas.
    For a longer service life than brass and cast iron valves, these have a durable bronze body. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. All valves have an internal strainer to trap debris.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Bronze Body—Buna-N Diaphragm and Seal with Internal Strainer
    1 1/2
    Side4001 1/2
    SideScrew6 3/4"Water, Oil, Air, Inert Gas32 to 180
    2 to 15
    ,
    10 to 30
    ,
    20 to 50
    ,
    45 to 100
    ,
    90 to 150
    00000000000000000
     

    Pressure-Regulating Valves for Chemicals

    Image of Product. Front orientation. Pressure-Regulating Valves. Pressure-Regulating Valves for Chemicals.
    A plastic body and fluoroelastomer seal stand up to harsh chemicals. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Each
    NPT Female
     
    PVC Body—Fluoroelastomer Seal
    1 1/2
    Side1251 1/2
    Side10 to 80Screw6 1/8"Chemicals40 to 14000000000000000000
     

    High-Temperature Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

    Image of Product. Front orientation. Pressure-Regulating Valves. High-Temperature Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas.
    Rated for more than double the temperature of standard pressure-regulating valves, these can withstand temperatures up to 550° F. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves meet ANSI/FCI 70-2 Class IV for tight shut-off (max. leakage rate of 0.01%).
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use With
    Temp. Range,
    ° F
    Specs. Met
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Steel Body—316 Stainless Steel Diaphragm and 303 Stainless Steel Seal
    1 1/2
    Side3001 1/2
    SideScrew4 13/16"Water, Oil, Air, Inert Gas32 to 550ANSI/FCI 70-2 Class IV
    5 to 20
    ,
    10 to 30
    ,
    20 to 45
    ,
    30 to 95
    ,
    60 to 160
    00000000000000000
     

    Hydraulic Pressure-Relief Valves

    Image of Product. Iron. Front orientation. Pressure-Relief Valves. Hydraulic Pressure-Relief Valves, Iron Body.

    Iron

    To set the pressure, unscrew the cap and turn the adjustment screw. Valves begin opening at the set pressure and fully open at about 10% over the set pressure. They begin closing as pressure drops and close when the system pressure is restored below the set pressure.
    Iron Body—Iron valves absorb vibration to reduce noise and wear in the pipeline.
    Inlet
    Connection
    Relief
    Connection
    Overall
    Pipe
    Size
    Dash
    Size
    Pipe
    Size
    Dash
    Size
    Lg.
    Wd.
    Ht.
    Temp. Range,
    ° F
    Choose a Set Pressure, psi
    Each
    NPT Female Inlet and NPT Female Relief Port
     
    Iron Body
    1 1/2
    241 1/2
    244 1/8"2 7/8"11 1/16"-20 to 400
    3 to 10
    ,
    7 to 35
    ,
    30 to 100
    ,
    60 to 175
    ,
    150 to 350
    ,
    300 to 500
    00000000000000
     

    High-Accuracy Pressure-Regulating Valves for Steam

    Image of Product. Front orientation. Pressure-Regulating Valves. High-Accuracy Pressure-Regulating Valves for Steam.
    Control steam line pressure with ±1 psi accuracy. These valves automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have a cast iron body that absorbs vibration from pressure changes to reduce wear and noise in your pipeline. They meet ANSI/FCI 70-2 Class IV for tight shut-off (max. leakage rate of 0.01%). Install 1/4 NPT male pipe (not included) between the control valve and your downstream steam line.
    Repair Kits—Repair kits (sold separately) include replacement seals, diaphragm, spring, and spring assembly.
    Valves
    Repair Kits
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    For Use
    With
    Temp. Range,
    ° F
    Specs. Met
    Choose an Outlet Pressure, psi
    Each
    Each
    NPT Female
     
    Cast Iron Body—301 Stainless Steel Diaphragm and 420 Stainless Steel Seal
    1 1/2
    Side2501 1/2
    SideScrewSteam40 to 450ANSI/FCI 70-2 Class IV
    3 to 20
    ,
    5 to 50
    ,
    10 to 100
    ,
    20 to 150
    000000000000000000000000000000
     

    Pressure-Regulating Valves for Drinking Water

    Image of Product. Valves. Front orientation. Pressure-Regulating Valves. Pressure-Regulating Valves for Drinking Water.
    Image of Product. Valves With Union Fitting. Front orientation. Pressure-Regulating Valves. Pressure-Regulating Valves for Drinking Water, Female Inlet, Buna-N Diaphragm, Union Fitting.

    Valves

    Valves With

    Union Fitting

    These valves meet NSF/ANSI 61 for use in drinking water systems. They automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. All valves have a gauge port. An internal strainer traps debris. Body is bronze for durability and a long service life.
    Union Fitting—Valves with union fitting disassemble for easy installation and removal.
    Inlet
    Outlet
    Gauge Port
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure
    Range, psi
    Pressure Adjustment
    Method
    Pressure Gauge
    Included
    Pipe
    Size
    Location
    Connection
    End-to-End
    Lg.
    For Use With
    Temp. Range,
    ° F
    Certification
    Food Industry
    Std.
    Each
    NPT Female
     
    Bronze Body—Buna-N Diaphragm and Seal with Internal Strainer and Union Fitting
    1 1/2
    Side3001 1/2
    Side25 to 75ScrewNo1/4
    BottomNPT Female6 5/16"Drinking Water33 to 140ASSE 1003 Listed, CSA Certified, IAPMO Listed
    NSF/ANSI 61
    00000000000000
     

    Pressure-Regulating Valves for Steam

    Image of Product. Front orientation. Pressure-Regulating Valves. Pressure-Regulating Valves for Steam.
    Automatically reduce a high, variable inlet pressure in your steam system to a lower, stable outlet pressure. Adjust the outlet pressure within the range. These valves have a cast iron body that absorbs vibration from pressure changes to reduce wear and noise in your pipeline.
    Internal Strainer—Internal strainers trap debris.
    Valves
    Repair Kits
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    Each
    NPT Female
     
    Cast Iron Body—Bronze Diaphragm and 420 Stainless Steel Seal
    1 1/2
    Side2501 1/2
    SideScrew6 1/2"Steam-20 to 400
    0 to 10
    ,
    10 to 30
    ,
    30 to 50
    ,
    40 to 85
    0000000000000000000000000000
     
    Cast Iron Body—Bronze Diaphragm and PTFE Seal with Internal Strainer
    1 1/2
    Side1501 1/2
    SideScrew6 3/4"Steam-20 to 400
    2 to 15
    ,
    10 to 30
    ,
    20 to 50
    ,
    45 to 100
    ,
    90 to 150
    00000000000000000000000000
     

    Extended-Life Vacuum-Regulating Valves for Air and Inert Gas

    Image of Product. Front orientation. Vacuum-Regulating Valves. Extended-Life Vacuum-Regulating Valves for Air and Inert Gas.
    For a longer service life than brass vacuum-regulating valves, these are made of bronze for strength and durability. They throttle a high vacuum source to maintain a lower vacuum level in your system. Turning the adjustment screw will adjust the vacuum setting.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Pipe
    Size
    Location
    Vacuum Range,
    in. Hg
    Vacuum Adjustment
    Method
    End-to-End
    Lg.
    For Use With
    Temp. Range,
    ° F
    Each
    NPT Female
     
    Bronze Body—Neoprene Diaphragm and Chrome-Plated Bronze Seal
    1 1/2
    Side1 1/2
    Side8 to 30Screw5 3/4"Air, Inert Gas-20 to 1800000000000000000
     

    Long-Life Pressure-Regulating Valves for Steam

    Image of Product. Front orientation. Pressure-Regulating Valves. Long-Life Pressure-Regulating Valves for Steam.
    For a longer service life than cast iron valves, these have a durable bronze body. All automatically reduce a high, variable inlet pressure to a lower, stable outlet pressure. Adjust the outlet pressure within the range. Valves have an internal strainer to trap debris.
    Inlet
    Outlet
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Pipe
    Size
    Location
    Pressure Adjustment
    Method
    End-to-End
    Lg.
    For Use
    With
    Temp. Range,
    ° F
    Choose an Outlet Pressure, psi
    Each
    NPT Female
     
    Bronze Body—Bronze Diaphragm and PTFE Seal with Internal Strainer
    1 1/2
    Side2501 1/2
    SideScrew6 3/4"Steam-20 to 400
    2 to 15
    ,
    10 to 30
    ,
    20 to 50
    ,
    45 to 100
    ,
    90 to 150
    00000000000000000
     
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