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    52 Products

    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 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
    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
     
    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
     

    Corrosion Resistant Breather Vents

    These breather vents withstand corrosion in damp environments. Use them to prevent excess vacuum and pressure in cylinders, gear boxes, and tanks and to block debris from entering equipment.
    Threaded NPT Male
    Image of Product. Polyethylene. Front orientation. Breather Vents. Corrosion Resistant Breather Vents, Threaded NPT Male, Polyethylene Body.

    Polyethylene

    Polyethylene Body and Fitting—Polyethylene breather vents can be cleaned with mineral spirits.
    Pipe
    Size
    Max. Flow Rate
    @ Pressure
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use With
    Removes Particle
    Size Down To, μm
    Each
    Polyethylene Body and Fitting
    1/8
    		1 scfm @ 100 psi1001507/16"1/2"Air, Inert Gas100000000000000
    1/4
    		3 scfm @ 100 psi1001501/2"11/16"Air, Inert Gas10000000000000
    3/8
    		9 scfm @ 100 psi10015011/16"15/16"Air, Inert Gas10000000000000
    1/2
    		10 scfm @ 100 psi10015011/16"15/16"Air, Inert Gas10000000000000
    3/4
    		20 scfm @ 100 psi1001501 1/8"1 1/2"Air, Inert Gas10000000000000
    1
    		22 scfm @ 100 psi1001501 3/8"1 7/8"Air, Inert Gas10000000000000
     

    Washdown Weather Resistant Breather Vents

    These breather vents are rated NEMA 6 to withstand periodic submersion in water. Install them in enclosures to stop the buildup of pressure and vacuum and to prevent debris from entering equipment. Breather vents can be used with enclosures that are rated NEMA 4, 12, and 13 for washdown environments and splashing oil and coolant.
    Threaded UNF Male
    Image of Product. Bottom orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Threaded UNF Male, Aluminum Body.

    Aluminum

    Body

    Thread
    Size
    Max. Flow Rate
    @ Pressure
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use
    With
    Environment
    Enclosure
    Rating
    O-Ring
    Material
    Removes Particle
    Size Down To, μm
    Each
    Aluminum Body and Fitting
    10-32
    		Not Rated1.41581/4"3/8"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		EPDM
    		30000000000000
     
    Threaded Metric Male
    Image of Product. Front orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Threaded Metric Male, 303 Stainless Steel Body.
    Image of Product. Front orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Threaded Metric Male, Aluminum Body.
    Image of Product. Front orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Threaded Metric Male, Nylon Body.
    Image of Product. Front orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Threaded Metric Male, Polycarbonate Body.

    303

    Stainless

    Steel Body

    Aluminum

    Body

    Nylon Body

    Polycarbonate

    Body

    Thread
    Size
    Max. Flow Rate
    @ Pressure
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use
    With
    Environment
    Enclosure
    Rating
    O-Ring
    Material
    Removes Particle
    Size Down To, μm
    Features
    Each
    303 Stainless Steel Body and Fitting
    M3
    		Not Rated1.41585/16"1/4"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		EPDM
    		3—0000000000000
     
    Nylon Body and Fitting
    M3
    		Not Rated1.41583/8"5/16"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		—3—000000000000
     
    Polycarbonate Body and Fitting
    M16
    		Not Rated1.415815/16"1 1/16"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		Buna-N
    		3Mounting Nut000000000000
     
    Aluminum Body and Fitting
    M8
    		Not Rated1.41589/16"9/16"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		EPDM
    		3—000000000000
    M20
    		Not Rated1.41581"1 1/8"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		EPDM
    		1—000000000000
     
    Barbed Male
    Image of Product. Front orientation. Breather Vents. Washdown Weather Resistant Breather Vents, Barbed Male, ABS Body.

    ABS Body

    Vents with barbed connections fit unthreaded openings and are held in place by friction.
    For Hole
    Size
    Max. Flow Rate
    @ Pressure
    Max. Pressure,
    psi
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use
    With
    Environment
    Enclosure
    Rating
    O-Ring
    Material
    Removes Particle
    Size Down To, μm
    Each
    ABS Body and Fitting
    21/64"Not Rated41589/16"7/8"AirDusty, Outdoor, Submersible, Washdown, WetNEMA 6
    		Silicone Rubber
    		1000000000000
     

    Hazardous-Location Electrical Enclosure Drain Vents

    Image of Product. Front orientation. Electrical Enclosure Drain Vents. Hazardous-Location Electrical Enclosure Drain Vents, Glass-Filled Nylon.

    Glass-Filled Nylon

    Safe for use around hazardous gasses and dust, these drain vents maintain steady pressure and prevent moisture buildup from temperature changes inside enclosures. They allow air to flow through the enclosures while protecting the contents from washdowns, dirt, and weather. Install these drain vents at the lowest point on an enclosure, so moisture can drip out.
    Increased Safety—Increased-safety drain vents keep sparks, high temperatures, or current creepage inside an enclosure, so they won’t ignite flammable gasses and dust.
    Glass-Filled Nylon—Glass-filled nylon drain vents are lightweight yet durable. They’re good for most areas.
    Thread Size
    Ht.
    Enclosure
    Rating
    Nut
    Material
    O-Ring
    Material
    Color
    Max. Temp.,
    ° F
    Hazardous Location Rating
    Each
    Increased-Safety Drain Vents
     
    Glass-Filled Nylon
    M20 × 1.5 mm1 1/4"NEMA 4X, IP66
    		BrassBuna-N
    		Black185ATEX II 2DG
    IECEx Ex Tb IIIC Db
    IECEx Exe II Gb
    NEC Class I Division 2 Groups A, B, C, D    		0000000000000
     

    Submersible Snap-In Breather Vents

    Image of Product. Front orientation. Breather Vents. Submersible Snap-In Breather Vents.
    No threaded hole or tools needed—snap these vents into enclosures with a maximum 1/8” panel thickness to let airflow in and keep water out even when submerged. Use them to maintain consistent pressure inside your enclosure as temperatures change. These vents have a pressure compensating seal that prevents pressure buildup. They also have an acrylic filter that resists dust, water, and oil.
    For Hole
    Dia.
    Head
    Dia.
    Max. Temp.,
    ° F
    For Max.
    Panel Thk.
    Temp.,
    ° F
    Environment
    Enclosure
    Rating
    Certification
    Color
    Features
    Each
     
    Nylon
    1/2"1/2"2201/8"-40 to 220Corrosive, Dusty, Outdoor, Submersible, Washdown, WetIP68, NEMA 4X
    		UL Recognized Component
    		BlackPressure Compensating Seal0000000000000
    7/8"7/8"2201/8"-40 to 220Corrosive, Dusty, Outdoor, Submersible, Washdown, WetIP68, NEMA 4X
    		UL Recognized Component
    		BlackPressure Compensating Seal000000000000
    1 1/8"1 1/8"2201/8"-40 to 220Corrosive, Dusty, Outdoor, Submersible, Washdown, WetIP68, NEMA 4X
    		UL Recognized Component
    		BlackPressure Compensating Seal000000000000
     

    Moisture Absorbing Breather Vents

    Keep moisture, dirt, and debris from entering your oil reservoirs. The silica gel inside these breather vents absorbs moisture from the air, preventing rust from forming inside your tanks. The gel changes from blue to pink as it becomes saturated, letting you know it needs to be replaced. A second filter blocks dust and other particles from getting inside. These breather vents allow air to flow in and out of your lubrication system, keeping excess vacuum or pressure from building up in cylinders, gear boxes, and tanks.
    Nylon and Polycarbonate Body—NPT Male
    Image of Product. Front orientation. Breather Vents. Moisture Absorbing Breather Vents, Nylon and Polycarbonate Body—NPT Male.
    Breather vents with a plastic body are clear, so a quick glance will tell you if the gel is saturated. Unlike steel versions, which can be rebuilt, the entire unit must be replaced when fresh gel is needed.
    Pipe
    Size
    For Tank
    Cap., gal.
    Max. Flow Rate
    @ Pressure
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use With
    Removes Particle
    Size Down To, μm
    Each
    Nylon and Polycarbonate Body with Nylon Fitting
    3/8
    		1 to 24.5 scfm @ 1 psi2004"2 1/2"Air, Inert Gas30000000000000
    3/8
    		1 to 54 scfm @ 1 psi2005 3/8"2 1/2"Air, Inert Gas3000000000000
    1
    		5 to 20016 scfm @ 1 psi2006 1/8"4 1/8"Air, Inert Gas3000000000000
    1
    		5 to 35016 scfm @ 1 psi2008 1/8"4 1/8"Air, Inert Gas30000000000000
    1
    		5 to 50016 scfm @ 1 psi20010 1/8"4 1/8"Air, Inert Gas30000000000000
     
    Nylon and Polycarbonate Body with Check Valves—NPT Female
    Image of Product. Front orientation. Contains Inset. Breather Vents. Moisture Absorbing Breather Vents, Polycarbonate Body, Female, Nylon Body, NPT Thread.
    Breather vents with a plastic body are clear, so a quick glance will tell you if the gel is saturated. Unlike steel versions, which can be rebuilt, the entire unit must be replaced when fresh gel is needed.
    For washdown environments, select breather vents with check valves. These valves allow air to flow in and out, but close when liquids try to enter.
    Pipe
    Size
    For Tank Cap.,
    gal.
    Max. Flow Rate
    @ Pressure
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use With
    Removes Particle
    Size Down To, μm
    Each
    Nylon and Polycarbonate Body with Nylon Fitting
    1
    		1 to 40027 scfm @ 1 psi2004 11/16"5 11/16"Air, Inert Gas300000000000000
    1
    		1 to 60026 scfm @ 1 psi2006 7/16"5 11/16"Air, Inert Gas30000000000000
    1
    		1 to 80025 scfm @ 1 psi2008 1/4"5 11/16"Air, Inert Gas30000000000000
    1
    		1 to 1,00024 scfm @ 1 psi20010"5 11/16"Air, Inert Gas30000000000000
     
    Steel Body—NPT Male
    Image of Product. Front orientation. Breather Vents. Moisture Absorbing Breather Vents, Steel Body—NPT Male.
    Image of Product. Front orientation. Breather Vent Repair Kits. Moisture Absorbing Breather Vents.

    Repair Kits

    For an extended service life, use breather vents with a steel body. They are stronger than breather vents with plastic bodies and hold up better when exposed to chemicals. A window lets you check the color of the gel.
    Repair Kits—No need to replace the entire unit when the gel is saturated—use rebuild kits to add fresh gel and to replace the window, filters, and gaskets.
    Breather Vents
    Repair Kits
    Pipe
    Size
    For Tank Cap.,
    gal.
    Max. Flow Rate
    @ Pressure
    Max. Temp.,
    ° F
    Ht.
    Dia.
    For Use
    With
    Removes Particle
    Size Down To, μm
    Each
    Each
    Steel Body
    2
    		1 to 80085 scfm @ 1 psi22011 1/2"10 1/8"Air10000000000000000000000000000000
    2
    		1 to 1,30085 scfm @ 1 psi22013 3/4"10 1/8"Air100000000000000000000000000000
    2
    		1 to 2,40080 scfm @ 1 psi22018 1/4"10 1/8"Air100000000000000000000000000000
    3
    		1 to 4,000205 scfm @ 1 psi22019 1/4"15 1/2"Air100000000000000000000000000000
     

    Breather Vents with Cap

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

    Style B

    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 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 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

    Breather 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
     
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