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.
How A Pressure Vacuum Breaker Works. A pressure vacuum breaker consists of a check device or valve and an air inlet, usually a chamber vented to the atmosphere. The pressure vacuum breaker is installed close to the water source in the water flow before it goes into the sprinkler valves.ow To Maintain A Pressure Vacuum Breaker. Since the pressure vacuum breaker is such an important part of an irrigation system it is important to ensure it is working properly.