What is A Water Pressure Reducing Valve?

What is A Water Pressure Reducing Valve?

A water pressure reducing valve, also known as a pressure regulator or PRV, is used for controlling the water pressure entering a house from the main pipeline. Its purpose is to lower the pressure if it exceeds 80PSI in the main water line. By doing so, this valve ensures that the water pressure is reduced to a safe level before it reaches any plumbing devices within the house. It is crucial to maintain the water pressure at a safe level in order to prevent plumbing issues such as leaks and pipe bursts.

When a water pressure reducing valve is installed, it reduces the strain on the internal plumbing appliances. This means that faucets, shutoff valves, and water heaters are less likely to leak, and any fluctuations in water pressure are effectively balanced.

How Does A Water Pressure Reducing Valve Work?

A water pressure reducing valve is normally installed near the main water shutoff switch. You can start or stop it by using the adjustment screw.

The water pressure reducing valve works under a spring-loaded diaphragm, which will narrow or widen the water flow according to the amount of water pressure entering the valve. When the water enters the valve at high pressure, the inner device constricts the diaphragm to narrow the flow of water. Under this situation, the pressure will be reduced into a range of 50 to 80 psi. It greatly reduces the stress of your plumbing system. Conversely, when the water pressure drops, the diagram opens wider to allow more water to flow through the valve.

You can adjust the screw on the top of regulator to limit the water flow to adjust the pressure.

Where&How is A Water Pressure Reducing Valve Used For?

A water pressure reducing valve is used to connect with your plumbing system and is installed where the main water line enters your home. The functions is reducing the water pressure once pipes pressure exceeds 80 PSI, which is the generally approved rate for residential or light commercial use

If you want to DIY, it’s best to install it after the shutoff valve. Before beginning, shut off the water supply lines.

You’ll notice that most pressure regulator valves have an arrow pointing in the direction of the water flow. We should connect the pipes with the valve in the right position. If the position is wrong, the valve will not work properly. Be sure to test the water pressure and make adjustments accordingly.