A water pressure-reducing valve (PRV valve) measures the pressure of the discharge side of the valve. Its task is to hold the set pressure constant. If pressure increases on the discharge side, the valve closes. When the pressure decreases on the discharge side, the valve will open, ‘topping off so to speak, keeping the pressure constant. When using roof tanks, pressure-reducing valves can be necessary. Otherwise, the pressure will be too high at the lowest apartments.

This pressure-reducing valve is a valve that normally allows fluid to flow through it in only one direction. Pressure-reducing valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. Check valves are generally installed in pipelines to prevent backflow.

They are often placed on the outlet side of a pump, to protect the pump from backflow. Centrifugal pumps, the most common type of water pumps, are not self-priming, and therefore check valves are essential for keeping water in the pipes. For additional information regarding the product, please contact with dubuy support team.