Sun Hydraulics 1EE6-AA RBAC-LDN 1LB5 Directional Control Valve

The Sun Hydraulics RBAC-LDN relief cartridge valve is a direct-acting device designed for remote pressure control in hydraulic systems. It supports a maximum operating pressure of 5,000 psi (350 bar) and a flow capacity up to 0.25 gpm (1 L/min), enabling precise relief for pilot-operated circuits while protecting actuators from pressure spikes. Weighing about 0.30 lb (0.15 kg), the cartridge features a main-stage orifice guarded by a 150-micron stainless-steel screen and Sun’s floating-style construction to minimize binding from torque or machining variations. Commonly used to set relief pressure remotely for other pilot-operated valves, RBAC-LDN provides compact, cartridge-form installation for standard cavity footprints and supports load-holding applications and remote pressure control where space, repeatability, and predictable response are required.