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backflowpreventer中文

Air Gap: An air gap is a vertical, physical separation between the end of a water supply outlet and the flood-level rim of a receiving vessel.

A pressure relief valve (PRV) is a type of safety-related component used in the pipeline or with vessels in pneumatics. Relief valves are used to limit the ...

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Watts Series LF25AUB-Z3 1 in. 300# 125 psi Copper Silicon Alloy FNPT Union x FNPT Pressure Reducing... ... Watts Series LF25AUB-Z3 3/4 in. 300 psi Cast Copper ...

Pressure Vacuum Breaker Assembly (PVB): A PVB is a mechanical backflow preventer that consists of an independently acting, spring-loaded check valve and an independently acting, spring-loaded, air inlet valve on the discharge side of the check valve.

Backwater valve

Grant Oil Boiler Spares - Automatic Air Vent - MPCBS29.

Backflow prevention devices operate by allowing water to flow in only one direction. In an unprotected water service connection, potable water can flow both in and out of a building or fixture. When water service is interrupted in the street or in a building for any reason, there is a pressure drop which can draw contaminated water backwards into the water system. For example, cleaning fluids may be drawn back from car washes; stagnant water from fire sprinkler systems may enter the drinking waterline; bacteria and pathogens of all sorts can be siphoned back into the water system from air conditioning cooling towers; and chemicals from medical clinic's X-ray development may flow backwards into the potable water system. To protect water quality, backflow protection is required where the end user poses a risk of polluting the city's water supply.

This 1 inch reduced pressure zone backflow preventer assembly is designed to prevent the flow of polluted water from entering into the potable water supply ...

A leading manufacturer of water quality solutions. Water safety, flow control, backflow prevention, drainage. Learn more about our products!

202131 — Thermostatic mixing valves are useful in applications that must ensure a constant outlet temperature to prevent damage or injury.

WattsBackflowpreventer

Series LF25AUB-Z3 Lead Free* Water Pressure Reducing Valves are used in commercial and residential applications to reduce incoming water pressure for ...

Reduced Pressure Backflow Prevention Assembly (RP): An RP is a mechanical backflow preventer that consists of two independently acting, spring-loaded check valves with a hydraulically operating, mechanically independent, spring-loaded pressure differential relief valve between the check valves and below the first check valve.

Pressure reducing valves · Catalog · Sanitary devices & systems · DRV/E Pressure Reducing Valve · Flanged pressure reducing valve DRVD.

202167 — Should you install a hot water recirculation pump? Learn about the pros and cons along with the potential water and energy savings in this ...