PRESSURE RELIEF VALVES
The Inbal Pilot operated pressure relief System designed to prevent overpressure in piping system, is installed in a by-pass line to release excess pressure that may develop as a result of a sudden change in the velocity of the water flowing in the pipe and automatically maintain a maximum predetermined upstream pressure.
The Inbal Pilot operated pressure sustaining System designed to prevent pressure drop in upstream pipe, is installed in the main line to compensate the loss in pressure that may develop as a result of an increase in flow of water in the pipe and automatically maintain a maximum predetermined upstream pressure.
The Inbal Automatic Water Control Valve used in the pressure relief and pressure sustaining system is a pressure operated, sleeve actuated, Axial Valve with the unique reliable N.M.M.P. (No Moving Mechanical Parts) design in which the only moving part when the Inbal Valve operates, is the reinforced sleeve which forms a drip-tight seal with the corrosion resistant core, preventing false operation due to transient surges in water supply pressure.