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    31 Products

    Vacuum Breakers

    Also known as vacuum-breaking valves, these valves have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping.
    90° Elbow
    Image of Product. Front orientation. Contains Annotated. Vacuum Breakers. Vacuum Breakers, 90° Elbow.
    Elbows are designed for intermittent flow. They discharge liquid directly and should not be installed in areas where spillage could cause damage.
    Chrome-Plated Bronze Body—Chrome-plated bronze valves are more corrosion resistant than brass valves.
    Brass Body
    Chrome-Plated
    Bronze Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    Port-to-Port
    Lg.
    Seal Material
    For Use
    With
    Each
    Each
    NPT Female Inlet × NPT Female Outlet
    1/4
    		1/4
    		125 psi @ 70° F35 to 1801"Silicone Rubber
    		Water———00000000000000
    3/8
    		3/8
    		125 psi @ 70° F35 to 1801"Silicone Rubber
    		Water———0000000000000
    1/2
    		1/2
    		125 psi @ 70° F35 to 1801 1/4"Silicone Rubber
    		Water———0000000000000
    1/2
    		1/2
    		125 psi @ 70° F35 to 1801 5/16"Silicone Rubber
    		Water00000000000000———0
    3/4
    		3/4
    		125 psi @ 70° F35 to 1801 1/2"Silicone Rubber
    		Water0000000000000000000000000
    1
    		1
    		125 psi @ 70° F35 to 1801 5/8"Silicone Rubber
    		Water0000000000000———0
    1 1/4
    		1 1/4
    		125 psi @ 70° F35 to 1802"Silicone Rubber
    		Water00000000000000———0
    1 1/2
    		1 1/2
    		125 psi @ 70° F35 to 1802 1/4"Silicone Rubber
    		Water00000000000000———0
    2
    		2
    		125 psi @ 70° F35 to 1802 3/4"Silicone Rubber
    		Water00000000000000———0
     
    Straight
    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers, Straight.
    Straights are often used with steam coils, heat exchangers, and space heaters.
    303 Stainless Steel Body—303 stainless steel valves have the best corrosion resistance.
    Brass Body
    303 Stainless
    Steel Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    Max. Pressure
    @ Temp.
    Temp. Range,
    ° F
    End-to-End
    Lg.
    Seal
    Material
    For Use With
    Each
    Each
    NPT Male Inlet × NPT Female Outlet
    1/2
    		3/8
    		300 psi @ 70° F-20 to 3651 3/4"EPM RubberAir, Argon, Helium, Krypton, Neon, Steam, Water, Xenon0000000000000000000000000000
    3/4
    		1/2
    		300 psi @ 70° F-20 to 3652 1/8"EPM RubberAir, Argon, Helium, Krypton, Neon, Steam, Water, Xenon00000000000000000000000000
    1
    		3/4
    		300 psi @ 70° F-20 to 3652 3/8"EPM RubberAir, Argon, Helium, Krypton, Neon, Steam, Water, Xenon00000000000000000000000000
     

    Vacuum Breakers for Chemicals

    A plastic body withstands pH neutralizing, cleaning, and plating solutions containing sodium hydroxide, methyl ethyl ketone, and other harsh chemicals. Also known as vacuum-breaking valves, these valves have vents that open when pressure drops to relieve vacuum conditions and prevent backward suction from drawing liquid into upstream piping.
    Diaphragm Check Valve
    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers for Chemicals.
    Material
    CPVC Body
    PVC Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    For Pipe
    Schedule
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    End-to-End
    Lg.
    Seal
    DIaphragm
    For Use With
    Temp. Range,
    ° F
    Color
    Each
    Temp. Range,
    ° F
    Color
    Each
    NPT Female Inlet × NPT Female Outlet
    1/2
    		1/2
    		80
    		Not Rated100 psi @ 75° F14 5/16"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray0000000000000040 to 140Gray0000000000000
    3/4
    		3/4
    		80
    		Not Rated100 psi @ 75° F14 5/8"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray000000000000040 to 140Gray0000000000000
    1
    		1
    		80
    		Not Rated100 psi @ 75° F15 1/8"Fluoroelastomer
    		Fluoroelastomer
    		Beverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray000000000000040 to 140Gray0000000000000
     
    Spring-Loaded Piston Check Valve
    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers for Chemicals.
    Material
    CPVC Body
    PVC Body
    Inlet Pipe
    Size
    Outlet
    Pipe SIze
    For Pipe
    Schedule
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    Min. Opening
    Pressure, psi
    End-to-End
    Lg.
    Seal
    Piston
    Spring
    For Use With
    Temp. Range,
    ° F
    Color
    Each
    Temp. Range,
    ° F
    Color
    Each
    NPT Female Inlet × NPT Female Outlet
    1 1/2
    		1 1/2
    		80
    		Not Rated100 psi @ 75° F17 15/16"Fluoroelastomer
    		CPVC
    		PolymerBeverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon40 to 180Light Gray00000000000000—————0
    2
    		2
    		80
    		Not Rated100 psi @ 75° F18 1/2"Fluoroelastomer
    		PVC
    		PolymerBeverage, Food, Air, Ammonia, Argon, Carbon Dioxide, Chlorinated Water, Diesel Fuel, Drinking Water, Ethylene Glycol, Helium, Hydrochloric Acid, Kerosene, Krypton, Liquid Carbon Dioxide, Methanol (Methyl Alcohol), Methyl Ethyl Ketone (MEK), Mineral Spirits, Natural Gas, Neon, Nitric Acid, Nitrogen, Oil, Oxygen, Soap Solutions, Sodium Hydroxide (Caustic Soda), Sodium Hypochlorite (Bleach), Water, Xenon—————040 to 140Gray00000000000000
     

    Vacuum Breakers with Garden-Hose Fittings

    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers with Garden-Hose Fittings, Set Screw.

    Set Screw

    Image of Product. Front orientation. Vacuum Breakers. Vacuum Breakers with Garden-Hose Fittings, Tamper-Resistant Set Screw.

    Tamper-Resistant

    Set Screw

    Prevent dirty, contaminated water from backing up into your garden hose line—install these vacuum breakers between a faucet and a garden hose. Also known as vacuum-breaking valves, these valves have a built-in check valve that blocks backflow, so you can leave your hose in a utility sink full of dirty water without the water going back into the line.
    When the check valve is closed, it has vents that open to release the water. This reduces pressure in the line and confirms the valve is working. Because these valves vent water, use them in environments where spilled water won’t cause a problem. This design adheres to ASSE Standard 1011 for valves with a vent.
    Mount valves to faucet outlets with a set screw, and easily thread or unthread a hose while the valves stay in place.
    Valves comply with Uniform Plumbing Code (UPC) and are CSA certified, so they're safe to use in sanitary plumbing systems because they prevent contamination from flowing backward into your line.
    These valves are designed to be used intermittently. They've been tested under ASME A112.1.3, which assumes the valves will not be used for more than 12 hours at a time.
    Tamper-Resistant Set Screw—Valves with tamper-resistant set screws have a head that breaks off after tightening to prevent valve removal after installation.
    NSF/ANSI 372—Valves that meet NSF/ANSI Standard 372 are certified lead free.
    Chrome-Plated Brass Body—Chrome-plated brass valves are more corrosion resistant than plain brass valves.
    Brass Body
    Chrome-Plated Brass Body
    Inlet Hose
    Size
    Outlet
    Hose Size
    Flow Coefficient
    (Cv)
    Max. Pressure
    @ Temp.
    End-to-End
    Lg.
    Food Industry
    Std.
    Specs. Met
    Certification
    Seal
    Material
    For Use
    With
    Temp. Range,
    ° F
    Each
    Temp. Range,
    ° F
    Each
    GHT Female Inlet × GHT Male Outlet
     
    Set Screw
    3/43/4Not Rated125 psi @ 70° F1 1/2"—ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC CompliantCSA Certified
    IAPMO Listed
    		Rubber
    		Air, Water30 to 1800000000000000030 to 18000000000000000
    3/43/4Not Rated125 psi @ 70° F1 1/2"NSF/ANSI 372
    		ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC CompliantCSA Certified
    IAPMO Listed
    		Rubber
    		Air, Water30 to 180000000000000030 to 1800000000000000
     
    Tamper-Resistant Set Screw
    3/43/4Not Rated125 psi @ 70° F1 1/2"—ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC CompliantCSA Certified
    IAPMO Listed
    		Rubber
    		Air, Water30 to 180000000000000030 to 1800000000000000
    3/43/4Not Rated125 psi @ 70° F1 1/2"NSF/ANSI 372
    		ASME A112.1.3, ASSE 1001, ASSE 1011, CAN/CSA-B64.2, UPC CompliantCSA Certified
    IAPMO Listed
    		Rubber
    		Air, Water30 to 1800000000000000————0
     
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