RD-1 2-Way Dump Valve
(Model 8001)

The Ruelco RD-1 is a normally open hydraulic controller that acts as a snap acting vent valve on loss of pilot pressure. This configuration of the Ruelco RD-1 permits control of hydraulic pressure up to 6000 PSI. A pilot supply of 80 PSI is necessary to control 6000 PSI of hydraulic pressure. Minimum recommended pilot pressure is 30 PSI. A high ratio of hydraulic pressure to pilot control pressure ensures safe operation. A soft seal design ensures zero leakage in the hydraulic section.

The internal spring and the hydraulic pressure act on the spool area are jointly responsible for opening the valve, although each on its own provides sufficient force to open the valve.

Ruggedly constructed stainless steel process wetted parts provide years of reliable service and the compact and simple design makes field maintenance easy.

• 316 stainless steel construction (models to N.A.C.E. MR0175 available).
• Large C_v factor ensures a fast system response.
• Only an 80 PSI supply required to control 6000 PSI.