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    51 Products

    Breather Vents

    Image of Product. Style B. Front orientation. Style B. Breather Vents.
    Image of Product. Style C. Front orientation. Style C. Breather Vents.
    Image of Product. Style D. Front orientation. Style D. Breather Vents.
    Image of Product. Style E. Front orientation. Style E. Breather Vents.

    Style B

    Style C

    Style D

    Style E

    Protect against excess vacuum and pressure in cylinders, gear boxes, enclosures, manifolds, and tanks. You can also use these breather vents to block debris from entering equipment.
    Splash Guard—Breather vents with splash guard are good for containers that are often filled and drained; they have a guard that prevents oil from splashing out of the vent hole.
    Style
    Pipe
    Size
    Max. Flow Rate
    @ Pressure
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use With
    Removes Particle
    Size Down To, μm
    Features
    Each
    NPT Male
     
    Zinc-Plated Steel Body and Fitting
    D1/8
    		Not RatedNot Rated2251"—Air, Inert Gas, Oil, Water40—0000000000000
    D1/4
    		Not RatedNot Rated2251"—Air, Inert Gas, Oil, Water40—000000000000
    D3/8
    		Not RatedNot Rated2251 1/16"—Air, Inert Gas, Oil, Water40—000000000000
    D1/2
    		Not RatedNot Rated2251 3/16"—Air, Inert Gas, Oil, Water40—000000000000
    D3/4
    		Not RatedNot Rated2251 1/4"—Air, Inert Gas, Oil, Water40—000000000000
    E1/8
    		Not RatedNot Rated2251 3/16"—Air, Inert Gas, Oil, Water40Splash Guard000000000000
    E1/4
    		Not RatedNot Rated2251 3/16"—Air, Inert Gas, Oil, Water40Splash Guard000000000000
    E3/8
    		Not RatedNot Rated2251 1/4"—Air, Inert Gas, Oil, Water40Splash Guard000000000000
    E1/2
    		Not RatedNot Rated2251 5/16"—Air, Inert Gas, Oil, Water40Splash Guard000000000000
    E3/4
    		Not RatedNot Rated2251 3/8"—Air, Inert Gas, Oil, Water40Splash Guard000000000000
     
    Steel Body and Fitting
    B1/8
    		Not Rated1254003/4"—Oil—Splash Guard00000000000
    B3/8
    		Not Rated1254001"—Oil—Splash Guard00000000000
    B1/2
    		Not Rated1254001 1/8"—Oil—Splash Guard000000000000
     
    Nylon Body and Fitting
    C1/4
    		Not RatedNot Rated2101 9/16"1 11/16"Air, Oil40Splash Guard00000000000
    C3/8
    		Not RatedNot Rated2101 3/4"1 11/16"Air, Oil40Splash Guard00000000000
    C1/2
    		Not RatedNot Rated2101 13/16"1 11/16"Air, Oil40Splash Guard00000000000
    C3/4
    		Not RatedNot Rated2101 13/16"1 11/16"Air, Oil40Splash Guard00000000000
     

    Air-Release Valves for Oil and Fuel

    Image of Product. Front orientation. Air Vent Valves. Air-Release Valves for Oil and Fuel.
    Use this valve to eliminate air pockets in systems for oil, diesel fuel, gasoline, and kerosene. Valve has a vented relief port to exhaust discharge directly. Body is 304 stainless steel for excellent corrosion resistance.
    Inlet
    Relief Port
    Pipe
    Size
    Location
    Pipe
    Size
    Type
    Location
    Max. Pressure,
    psi
    Temp. Range,
    ° F
    Overall
    Ht.
    Each
    NPT Female Inlet and Relief Pipe
     
    304 Stainless Steel Body—Vertical Mount
    3/4
    		Bottom1/2
    		PipeTop400-20 to 5007"00000000000000
     

    Lockable Breather Vents with Cap

    Secure access to vented openings in pipe and tanks—the cap can be locked to prevent tampering. These breather vents allow you to add a filling port to your hydraulic tank while protecting against excess pressure and vacuum. Use them to stop debris from entering your tank. Breather vents mount on top of standard tank openings with included hardware. Padlock is not included.
    Flange Mount
    Image of Product. Steel with 304 Stainless Steel Screen. Front orientation. Breather Vents. Lockable Breather Vents with Cap, Flange Mount.
    Image of Product. Steel with Nylon Plastic Screen. Front orientation. Breather Vents. Lockable Breather Vents with Cap, Flange Mount, Nylon Screen.

    Steel with 304

    Stainless

    Steel Screen

    Steel with

    Nylon Plastic

    Screen

    For Opening
    Dia.
    Max.
    Pressure
    Ht.
    For Use
    With
    Cap
    Material
    Screen Material
    No. of Bolt
    Holes
    Bolts
    Included
    Removes Particle
    Size Down To, μm
    For Max. Padlock
    Shackle Dia.
    Each
    Steel Body
    2 1/8"Not Rated5 1/8"Air, OilSteel304 Stainless Steel
    		6Yes103/8"0000000000000
    2 1/8"Not Rated5 1/8"Air, OilSteel304 Stainless Steel
    		6Yes403/8"000000000000
    2 1/8"Not Rated6 1/8"Air, OilSteelNylon
    		6Yes103/8"000000000000
    2 1/8"Not Rated6 1/8"Air, OilSteelNylon
    		6Yes403/8"000000000000
     
    Threaded NPT Male
    Image of Product. Bottom orientation. Breather Vents. Lockable Breather Vents with Cap, Threaded NPT Male, Aluminum Body.

    Aluminum Body

    Pipe
    Size
    Max.
    Pressure
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use With
    Cap
    Material
    Screen
    Material
    For Max. Padlock
    Shackle Dia.
    Each
    Aluminum Body and Fitting
    2
    		Not Rated2004 1/2"5 5/8"Air, Oil, WaterAluminum
    		Stainless Steel
    		3/8"0000000000000
     

    Compact Pressure-Relief Valves

    Due to their small size, these valves are often installed on tanks in low-clearance areas. They begin opening at the set pressure. Nylon valves fully open at about 10% over the set pressure and steel valves fully open at about 50% over the set pressure. Valves begin closing as pressure drops and fully close when the system pressure is restored below the set pressure. All have a vent outlet to exhaust discharge directly. Set pressure is not adjustable.
    Steel Body—For Grease and Oil
    Image of Product. Front orientation. Pressure-Relief Valves. Compact Pressure-Relief Valves, Steel Body—For Grease and Oil.
    Inlet
    Each
    Pipe
    Size
    Location
    Max. Pressure,
    psi
    Relief Port
    Location
    Overall
    Ht.
    Set
    Pressure
    1-9
    10-Up
    NPTF Male Inlet and Relief Vent
    1/8
    		Bottom5Top1/2"1 psi0000000000000000
    1/8
    		Bottom15Top1/2"7.5 psi00000000000000
    1/8
    		Bottom25Top1/2"15 psi00000000000000
    1/8
    		Bottom80Top17/32"45 psi00000000000000
    1/8
    		Bottom140Top9/16"80 psi000000000000000
    1/8
    		Bottom200Top1/2"100 psi000000000000000
    1/8
    		Bottom650Top1/2"400 psi000000000000000
     
    BSPT Male Inlet and Relief Vent
    1/8
    		Bottom1Top1/2"0.3 psi000000000000000
    1/8
    		Bottom5Top1/2"1 psi000000000000000
    1/8
    		Bottom80Top1/2"45 psi000000000000000
     

    Breather Vents with Cap

    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style A.
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style B.
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style C.
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style D.
    Image of Product. Replacement Screen. Front orientation. Breather Vent Screens. Breather Vents with Cap, Style C.

    Style A

    Style B

    Style C

    Style D

    Replacement Screen

    Add a filling port to your hydraulic tank while protecting against excess pressure and vacuum. Breather vents stop debris from entering your tank. Mount them on top of standard tank openings with included hardware.
    Style A
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style A.
    Image of Product. Replacement Screen. Front orientation. Breather Vent Screens. Breather Vents with Cap, Style A.

    Replacement Screen

    Vents
    Replacement
    Screens
    For Opening
    Dia.
    Max. Flow
    Rate, gpm
    Max. Temp.,
    ° F
    Ht.
    For Use
    With
    Screen Material
    Mount
    Type
    No. of Bolt
    Holes
    Bolts
    Included
    Removes Particle
    Size Down To, μm
    Each
    Each
    Steel Body
     
    304 Stainless Steel Cap
    2 1/8"202205"Air, Oil304 Stainless Steel
    		Flange6Yes4000000000000000000000000000
     
    Steel Cap
    2 1/8"1922505 1/8"Air, Oil304 Stainless Steel
    		Flange6Yes4000000000000000000000000
     
    Style B
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style B.
    For Opening
    Dia.
    Max. Flow
    Rate
    Max. Temp.,
    ° F
    Ht.
    For Use
    With
    Screen
    Material
    Mount
    Type
    No. of Bolt
    Holes
    Bolts
    Included
    Removes Particle
    Size Down To, μm
    Each
    Nylon Body
     
    Nylon Cap
    2"Not Rated1955 3/4"Air, OilNylon
    		Flange6Yes400000000000000
     
    Style C
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style C.
    Image of Product. Replacement Screen. Front orientation. Breather Vent Screens. Breather Vents with Cap, Style C.

    Replacement Screen

    Vents
    Replacement
    Screens
    For Opening
    Dia.
    Max. Flow
    Rate, gpm
    Max. Temp.,
    ° F
    Ht.
    For Use
    With
    Screen Material
    Mount
    Type
    No. of Bolt
    Holes
    Bolts
    Included
    Removes Particle
    Size Down To, μm
    Each
    Each
    Steel Body
     
    304 Stainless Steel Cap
    2 1/8"202205 3/4"Air, OilNylon
    		Flange6Yes4000000000000000000000000000
     
    Steel Cap
    2 1/8"115Not Rated5 1/8"Air, Oil304 Stainless Steel
    		Flange6Yes10000000000000000000000000
    2 1/8"115Not Rated6 1/8"Air, OilNylon
    		Flange6Yes100000000000000000000000000
    2 1/8"1901506 1/8"Air, OilNylon
    		Flange6Yes40000000000000000000000000
     
    Style D
    Image of Product. Front orientation. Breather Vents. Breather Vents with Cap, Style D.
    Image of Product. Replacement Screen. Front orientation. Breather Vent Screens. Breather Vents with Cap, Style D.

    Replacement Screen

    Vents
    Replacement
    Screens
    For Opening
    Ht.
    For Opening
    Wd.
    Max. Flow
    Rate, gpm
    Max.
    Temp.
    Ht.
    Wd.
    Dp.
    For Use
    With
    Screen Material
    Mount
    Type
    No. of Bolt
    Holes
    Bolts
    Included
    Removes Particle
    Size Down To, μm
    Each
    Each
    Nylon Body
     
    Steel Cap
    3 1/2"3"115Not Rated6 1/8"4 5/8"4"Air, Oil304 Stainless Steel
    		Flange7Yes1000000000000000000000000000
    3 1/2"3"192Not Rated6 1/8"4 5/8"4"Air, Oil304 Stainless Steel
    		Flange7Yes40000000000000000000000000
     

    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
    1/2
    		Bottom1,4003/4
    		SideExternal Adjustment Screw90° Elbow7 1/4"Oil-320 to 420Relief
    15 to 75
    ,
    50 to 150
    ,
    100 to 300
    ,
    200 to 600
    ,
    600 to 900
    		00000000000000
    3/4
    		Bottom1,4003/4
    		SideExternal Adjustment Screw90° Elbow7 1/4"Oil-320 to 420Relief
    15 to 75
    ,
    50 to 150
    ,
    100 to 300
    		0000000000000
    1
    		Bottom1,4001
    		SideExternal Adjustment Screw90° Elbow7 1/2"Oil-320 to 420Relief
    15 to 75
    ,
    50 to 150
    ,
    100 to 300
    ,
    200 to 600
    ,
    600 to 900
    		0000000000000
    1 1/4
    		Bottom1,4001 1/4
    		SideExternal Adjustment Screw90° Elbow8"Oil-320 to 420Relief
    15 to 75
    ,
    50 to 150
    ,
    100 to 300
    ,
    200 to 600
    ,
    600 to 900
    		0000000000000
    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
    		000000000000000
     
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