reduced pressure principle (RP), reduced pressure principle backflow prevention devices, reduced pressure zone assemblies (RPZA), or reduced pressure...

not a testable device and is mainly used on residential customers) Pressure vacuum breaker assembly (PVB) Reduced pressure zone device (RPZ) Spill resistant...

can be an integral device with a pressure setting, a restrictor and a sensor all in the one body, or consist of a separate pressure sensor, controller...

Hydrostatic loop Pressure vacuum breaker Chemigation valve Reduced pressure principle BFP Atmospheric vacuum breaker Reduced pressure zone device Air brake (road...

the set pressure will usually only be accurate for one type of fluid at a time. Pilot-operated relief valve (POSRV, PORV, POPRV): A device that relieves...

type of air gap Hydrostatic loop Pressure vacuum breaker Double check valve Chemigation valve Reduced pressure zone device Atmospheric vacuum breaker Upstream...

A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole...

withstand the fault condition whereby all zone valves are closed simultaneously. Zone valves increase the pressure drop through the system, to varying degrees...

Hydraulic shock (colloquial: water hammer; fluid hammer) is a pressure surge or wave caused when a fluid in motion is forced to stop or change direction...

A plumbing fixture is an exchangeable device which can be connected to a plumbing system to deliver and drain water. The most common plumbing fixtures...

water pressure drops on one supply line, the valve reduces the pressure in the other supply line to match. A side effect of this is that the pressure and...

must not be connected to any potable water supply except through a reduced pressure principle backflow prevention assembly." Florida's Department of Agriculture...

A pressure vacuum breaker (PVB) is a type of backflow prevention device, used to keep non-potable (or contaminated) water from entering the water supply...

water pressure) backflow. The modern ballcock was invented by José Antonio de Alzate y Ramírez, a Mexican priest and scientist, who described the device in...

March 2014. backflow prevention Pressure vacuum breaker Double check valve Chemigation valve Reduced pressure zone device Atmospheric vacuum breaker v t...

the velocity of the ejected stream, allowing the pressure to smoothly increase to the external pressure. The strength of the vacuum produced depends on...

A water detector is an electronic device that is designed to detect the presence of water for purposes such as to provide an alert in time to allow the...

even when they have other mechanisms or designs. The body is the main pressure-containing structure of the valve and the most easily identified as it...

filters to remove odours. Further refinements include adjustable water pressure, temperature compensation, and directional spray control. An add-on bidet...

higher pressure side to the lower pressure side. The larger the pressure difference, the more leakage there will typically be. The fluid pressures on both...

approved backflow prevention device, to prevent contaminated water from being siphoned back, in the event of a pressure drop. Many water suppliers require...

garburator) is a device, usually electrically powered, installed under a kitchen sink between the sink's drain and the trap. The device shreds food waste...

intentional play out of square, allows it to bind on the pipe, with forward pressure on the handle pulling the jaws tighter. On some models, two leaf springs...

A plunger is a device driven by or against fluid pressure. In plumbing, the term plunger commonly refers to handheld tools used to clear blockages in drains...

fitted with a bypass controlled by a smaller valve to be able to reduce the pressure before operating the gate valve itself. Gate valves without an extra...

incorporate some sort of pressure balancing feature so that the hot/cold mixture ratio will not be affected by transient changes in the pressure of one or other...

for sodium ions. As described by NSF/ANSI Standard 44, ion-exchange devices reduce the hardness by replacing magnesium and calcium (Mg2+ and Ca2+) with...

direct-piping water dispensers. Water cooler may also refer to a primitive device for keeping water cool. The wall-mounted type is connected to the building's...

they are often used for attaching pressure gauges or loggers or monitor system water pressure. Automatic flushing devices are often attached to hydrants...

(Russia) A specific water pipe made for use with pressure vessels. The pipe can sustain high-pressure water and is relatively small. Concrete water pipe...