Wiktionary(0.00 / 0 votes)Rate this definition: 1  plate(Noun) A dish from which food is served or eaten. 2  plate(Noun) The contents of such a dish. 3  plate(Noun) A course at a meal. 4  plate(Noun) A flat metallic object of uniform thickness. 5  plate(Noun) A vehicle license plate. 6  plate(Noun) A decorative or food service item coated with silver.
Hose Bibb Vacuum Breaker Hose bibb vacuum breakers consists of a spring-loaded check valve that seals against an atmospheric outlet when the water supply is turned on. When the supply is turned off, the device vents to atmosphere, thus protecting against backsiphonage conditions. A diagram of a hose bibb vacuum breaker is illustrated below along with a typical installation: Standardized Information for Hose Bibb Vacuum Breaker No information available at this time.
A vacuum breaker is an attachment commonly placed on a bibcock valve or toilet or urinal flush valve, that prevents water from being siphoned backward into the public drinking water system. This prevents contamination should the public drinking water system's pressure drop. vacuum breaker typically contains a plastic disc that is pressed forward by water supply pressure, and covers small vent holes.