Vacuum breaker definition

Vacuum breaker means "backflow preventer" as defined by this administrative regulation.
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Vacuum breaker means a device used to equalize the pressure of the vapor space across the floating roof deck as the deck is either being landed on or floated off its legs.
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Vacuum breaker means a device that permits entrance check of air into the water supply distribution line to prevent backsiphonage.
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Examples of Vacuum breaker in a sentence

  • Vacuum breaker leaks while flushing: replace Vacuum Breaker or water module, depending on model.

  • Backflow preventer – OptionalRequired for Commonwealth of Massachusetts Vacuum breaker – OptionalRequired for Commonwealth of MassachusettsFigure 1Domestic Water PipingPipe Relief Valve Discharge to within 6" of floor, see Section III Notes.

  • Vacuum breaker shall be stainless steel construction, including the body, threaded cap, valve and valve seat.

  • Vacuum breaker shall be Watts LF8, integral to the sample tap (boiler drain) or approved equal in accordance with B7..2 Each sample tap shall be 20 mm Watts Series BD, Watts Series HB-1 (c/w integral vacuum breaker) or approved equal in accordance with B7..3 Utilize brass fittings directly tapped into fittings or piping for all sample taps.

  • Vacuum breaker pockets: 4” long square turnback sections aligned with the slope break line.


More Definitions of Vacuum breaker

Vacuum breaker means a device that permits entrance of air into the potable water supply distribution line to prevent backsiphonage.
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Vacuum breaker means a device that will prevent backflow when pressure in the system upstream of the device falls below atmospheric pressure. Air is only admitted downstream of the device;
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Vacuum breaker means backflow preventer.
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Vacuum breaker means "backflow preventer" as defined by this administrative regu- lation.
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Vacuum breaker means a device used to equalize the pressure of the vapor space across the floating roof deck as the deck is either being landed on or floated off its legs.*[A vacuum breaker consists of a well with a cover. Attached to the underside of the cover is a guided leg long enough to contact the tank bottom as the floating roof is being landed. When in contact with the tank bottom, the guide leg mechanically lifts the cover off the well.]*
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Vacuum breaker means a device or a method that prevents back- siphonage in a water distribution system;
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Vacuum breaker means an assembly consisting of an independently operating air inlet valve. They are effective against back-siphonage only and cannot be used where positive pressure can be developed on the downstream side of the device or where the device is subject to flooding.
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