A water pressure reducing valve (PRV), also known as a pressure regulator, is a plumbing device that is designed to reduce the high pressure of incoming water to a safe and consistent level. High water pressure can cause damage to appliances, pipes, and fixtures, as well as waste water and energy. Therefore, a PRV is an essential component of any water supply system.
The operation of a PRV is quite simple. The device is installed on the main water supply line and works by automatically adjusting the water pressure to a pre-set level. This pre-set level is determined by the PRV’s pressure range, which is usually printed on the device. Most PRVs have a pressure range of 40-80 psi (pounds per square inch).
When the water pressure in the system exceeds the PRV’s pre-set level, the valve will close, reducing the water pressure to the desired level. Conversely, when the pressure drops below the pre-set level, the valve will open to allow more water into the system. This ensures that the water pressure remains within a safe and consistent range at all times.
There are several benefits to installing a PRV in your water supply system. For one, it can help to prevent leaks and burst pipes that are often caused by high water pressure. Additionally, it can help to extend the life of appliances such as washing machines, dishwashers, and water heaters, which are all sensitive to high water pressure.
Another benefit of a PRV is that it can help to reduce your water and energy bills. High water pressure can cause appliances to use more water and energy than necessary, which can add up to significant cost savings over time. By reducing the water pressure to a safe and consistent level, a PRV can help to reduce waste and save you money.