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Order LookupVacuum Breakers
Available24 products
Vacuum breakers are used in high-hazard applications where backsiphoning could result in harmful health hazards contaminating the water supply. They have an air inlet that allows air into the system, breaks the vacuum, and prevents backward siphoning into potable water supplies.
Size
Pressure Vacuum Breakers
Pressure vacuum breakers prevent backsiphoning of contaminated water in continuous pressure applications such as irrigation systems and industrial process water systems. They consist of a check valve, vacuum relief valve, and at least one test cock for easy testing and winterization.
APOLLO 4A-500
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WATTS
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WATTS LF008PCQT
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WATTS LF800M4-FR
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WATTS LF800M4-QT
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ZURN WILKINS 420XL
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ZURN WILKINS 460XL
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WATTS 800M4-QT
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WATTS 800M4-FR
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FEBCO 765
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ZURN WILKINS 710
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ZURN WILKINS 720A
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Atmospheric Vacuum Breakers
Atmospheric vacuum breakers (AVBs) prevent backsiphoning of contaminated water into potable water supplies if a pressure loss creates vacuum conditions. Also called anti-siphon vacuum breakers, they have an atmospheric vent that allows air to enter the valve and prevents a siphon from forming during periods of low or no demand. A seal is engaged to close the vent when water is flowing. They are not for use in continuous pressure applications.
APOLLO 38-100
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APOLLO 38-200
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APOLLO 38LF-100
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WATTS 188A
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WATTS LF288A
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WATTS LF289
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WATTS LFN388
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ZURN WILKINS 35XL
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Atmospheric Vacuum Breakers for Steam Service
Atmospheric vacuum breakers are for high-temperature steam applications such as heat exchangers, heating coils, condensate lines, and steam boilers. They operate on the atmospheric vent principle that allows air in to open the valve and break the vacuum to prevent outside water from siphoning back into the system.
NICHOLSON VB
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SPENCE VB
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Combination Thermostatic Air-Vents & Vacuum Breakers
Combination thermostatic air vents with integral vacuum breakers release air from steam-filled vessels such as shell-and-tube heat exchangers, jacketed kettles, and steam coils to break the vacuum that forms as they operate. They install at the highest point on a steam chamber and vent air without a drain line.
ARMSTRONG INTERNATIONAL TAVB
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Self-Closing Vacuum Breakers for Tanks & Piping Systems
Self-closing vacuum breakers eliminate siphoning and protect enclosed tanks from damage during draining. They have normally-closed, self-sealing diaphragms which provide a dependable, tight seal.
BELL & GOSSETT 62
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HAYWARD VB
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PLAST-O-MATIC VB/VBM
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Commercial Shower Vacuum Breakers
Commercial shower vacuum breakers prevent backsiphoning of contaminated water for applications in hotels, public pools, and fitness centers.
CHICAGO FAUCETS
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ZURN
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ZURN AquaSpec
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ZURN TempGard
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