Atmospheric vacuum breaker means a device, which prevents backsiphonage by creating an atmospheric vent when there is either a negative pressure or sub-atmospheric pressure in the water system.
Atmospheric vacuum breaker means a device designed to admit atmospheric pressure into a piping system whenever a vacuum is caused on the upstream side of the receptacle.
Atmospheric vacuum breaker or "AVB" means a non-testable device consisting of an air inlet valve or float check, a check seat and an air inlet port(s). This device is designed to protect against a non-health hazard or a health hazard under a backsiphonage condition only. Product and material approval is under the Oregon Plumbing Specialty Code.
Examples of Atmospheric vacuum breaker in a sentence
Atmospheric vacuum breaker: Also known as the "nonpressure type vacuum breaker," shall mean an assembly containing a float check, a check seat and an air inlet port.
Atmospheric vacuum breaker means a device that restricts the backflow of water into a potable water system by a simple check valve.
Atmospheric vacuum breaker (AVB) means an approved assembly consisting of a float check, a check seat and an air inlet port.
A shutoff valve immediately upstream may be an(b) Atmospheric vacuum breaker or AVB.
The unit shall include tightly closing shutoff valves located at each end of the device, and each device shall be fitted with properly located test cocks.(3) Atmospheric vacuum breaker.
More Definitions of Atmospheric vacuum breaker
Atmospheric vacuum breaker means a mechanical device not used under continued pressure, which automatically vents air from a pipeline to prevent back siphonage.
Atmospheric vacuum breaker means a mechanical device that automatically air vents a pipeline to prevent backsiphonage;
Atmospheric vacuum breaker means a mechanical device which automatically air vents a pipeline to prevent backsiphonage;
Atmospheric vacuum breaker means a device which prevents back siphonage by creating an atmospheric vent when there is either a negative pressure or sub atmospheric pressure in a water system.
Atmospheric vacuum breaker. (AVB) means a device which contains a float check (poppet), a check seat and an air inlet vent. When water pressure is reduced to a gauge pressure of zero or below, the float check drops, allowing air to enter the device, preventing backsiphonage. It is designed to prevent backsiphonage only.
Atmospheric vacuum breaker means a device which prevents back siphonage by creating an atmospheric vent when there is either a negative pressure or subatmospheric pressure in the water system.
Atmospheric vacuum breaker means an assembly containing an air inlet valve, a check seat and an air inlet port(s). The flow of water into the body causes the air inlet valve to close the air inlet port(s). When the flow of water stops the air inlet valve falls and forms a check valve against backsiphonage. At the same time it opens the air inlet port(s) allowing air to enter and satisfy the vacuum. A shutoff valve immediately upstream may be an integral part of the assembly, but the assembly shall not be subjected to operating pressure for more than twelve(12) hours in any twenty-four (24) hour period. An atmospheric vacuum breaker is designed to protect against a non-health hazard (i.e., pollutant) or a health hazard (i.e., contaminant) under a backsiphonage condition only.