A water pressure reducing valve, also often called a pressure regulator, is a plumbing device that controls the flow of water and stops the flow once a certain pressure is reached.

Pressure regulators can also be used for gas, in diving air tanks, and to optimise the operation of certain recreational vehicles. All water pressure reduction valves contain an inlet and outlet gauge, a diaphragm, and a pressure adjustment handle. The valve automatically brings the pressure of the water to a safe predetermined level regardless of any fluctuations.

Operation of Water Pressure Reducing Valves

Regulators include loading elements, restricting elements and measuring elements.

Restricting Element: This valve provides variable restriction to the flow. Examples of this type of valve include a poppet valve, globe valve and a butterfly valve.

Loading Element: The loading element can apply the necessary force to the restricting element. The load can be a spring, piston actuator, a weight or a diaphragm actuator that is combined with a spring.

Measuring Element: The measuring element of a water pressure reducing valve determines when the inlet flow equals the outlet flow. While the diaphragm is often used as a measuring element it can also serve as a combined element.

Water can often enter appliances that rely on water usage at changing pressures. This often happens in industrial settings and in remote locations. The pressure will often need to be kept at a certain range to avoid incidents, accidents or damage to the appliance.

Brands of Water Pressure Valves

Some of the more popular types of reduction valve brands include:

We recommend checking product review, warranties and delivery times before purchasing. Water pressure reduction valves are often made of stainless, steel, plastic, or bronze.