Pilot Operated Relief Valve RB Series Features and Handling • RB Series are Balanced Piston type relief valves with three pressure ranges available. The valves come with optional Vent port and Gauge port. The valves can be controlled by Solenoid Opereated Directional Control valve with optional cover setting for mounting the Solenoid Operated Directional Control valve on top. • To adjust the set pressure, loosen the lock nut of the valve and turn the handle to adjust the pressure. Maintain the back pressure at the tank port as low as possible, less than 2 bar (28 psi). Ordering Code 1 Model Series RB - Standard Cover RBE - Cover for mounting CETOP 3 or NG6 Solenoid Valve (size 06 and size 10 only) Mounting T - Threaded connections G - Gasket mounting (size 03 and 06 only) Valve size Threaded size (Threaded connections only) Pressure Range A - 7-70 bar (100-1000 psi) B - 35-140 bar (500-2000 psi) C - 70-210 bar (1000-3000 psi)

Installation Dimensions mm (inch) RB-T04 HOF 123 www.hofhydraulic.com

Pressure Pori Pressure Port Tank Port J Thread’ Gauge Port L Thread

Installation Dimensions mm (inch)