Cla-Val Models 350-07 and 3650-07 Electronic Actuated Pressure Sustaining Control Valves include a Manual Hydraulic Bypass combine precise control of field proven Cla-Val hydraulic pilots and simple, remote valve control. Model 350-07 and 3650-07 are hydraulically operated, pilot controlled, modulating valves designed to maintain constant upstream pressure within close limits.

These valves can be used for pressure sustaining, back pressure or unloading functions in a by-pass system.  The valves utilize a CRL-34 pilot control, consisting of a hydraulic pilot and integral controller, that accepts a remote set-point command input and makes set-point adjustments to the pilot.