Cla-Val - Hydraulic Pressure Control Valves - 250-01 & 605-01 Differential Pressure Relief Valve ***
The 50 Series Pressure Relief Valve is designed to maintain constant upstream pressure within close limits. In operation, the valve is actuated by line pressure through a pilot control system, opening fast to maintain steady line pressure but closing gradually to prevent surges. In addition to surge relief, this valve can be used for pressure relief, pressure sustaining, back pressure or unloading functions in a by-pass system.
Cla-Val Models 250-01 and 605-01 Differential Pressure Relief Valves are hydraulically operated, pilot-controlled, modulating valves. They are designed to maintain a constant pressure differential between any two pressure points in a system where the closing of the valve directly causes the differential pressure to increase. The valves tend to open on an increase in differential pressure and close on a decrease in differential pressure. Typical applications include differential pressure control in centrifugal pumping systems and chilled water circulating loop systems.
