Dual Pilot Operated Check Valve

Product Overview

HLK-6000 Dual Pilot-Operated Check Valves combine two check valves and a pilot shuttle to enable actuator position holding or the locking of a fluid inside a specific portion of a hydraulic circuit. Typical applications are position holding of hydraulic manipulators and pan & tilt units.

The check valves permit free flow in one direction and block flow in the other. When flow passes through one check valve and a suitable amount of back pressure is developed, the pilot spool shifts across to lift the opposing check valve off its seat to allow flow to return to the control valve through the opposite port. When the pilot pressure is removed, both check valves are re-seated by springs acting on the precision ball bearings.

General Specifications