2nd October 2019

wikipedia
14

How does a pressure reducing valve work?

The gas then enters the body of the regulator, which is controlled by the needle valve. The pressure rises, which pushes the diaphragm, closing the inlet valve to which it is attached, and preventing any more gas from entering the regulator. The outlet side is fitted with a pressure gauge.

Accordingly, what is a PRV in plumbing?

A pressure reducing valve (PRV) is a mechanical device designed to lower the working pressure of a liquid or gas from the supply side to the point of use side in a system. Pressure reducing valves operate by using an opposing force to act against the supply water pressure by means of a spring-loaded diaphragm.

What is a pressure reducing valve used for?

Pressure Reducing Valves. The 90 Series Pressure Reducing/Pressure Regulating Valve (PRV) automatically reduces a higher inlet pressure to a steady lower downstream pressure, regardless of changing flow rate and/or varying inlet pressure.

Where is the PRV valve located?

They are most often close to the house near the point where the incoming water pipe enters. Your pressure relief valve (let's stop using acronyms) is probably located on your water heater, it is actually a temperature/pressure relief valve. Sometimes a "pressure only" relief valve will be located on supply piping also.
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