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

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...

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

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...

always reduced bore, are relatively inexpensive, and are generally replaced instead of repaired. Two-piece ball valves generally have a slightly reduced (or...

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...

uses water pressure from the water supply system rather than gravity from a raised tank like in previous models. A diaphragm separates a pressure chamber...

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...

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

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

(sanitation) Pressure regulator Pressure vacuum breaker Pressure-balanced valve Pump Radiator (heating) Reduced pressure zone device Reducer Relief valve...

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

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...

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...

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...

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. Where bathroom...

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...

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...

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...

A vacuum breaker is a device that prevents water from being siphoned backward in a direction it is not desired to go. They are commonly placed on a bibcock...

will vary from 1/4 horsepower to multiple horsepower. Head pressure – The hydraulic head pressure of a sump pump describes the maximum height to which the...

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...

(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...

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...

clogged with impurities. These water filters should not be confused with devices or tablets that disinfect water, which remove or kill viruses such as hepatitis...

from old tarry ropes and cordage, which were painstakingly unravelled and reduced to fibre, termed "picking". The task of picking and preparation was a common...