| 摘要 |
<p>Disclosed is a hydraulic valve capable of pressure compensation which can make pressure compensation in accordance with the movement of a movable portion of a hydraulic actuator and can stop the movable portion against a load when it is at a neutral position. In this valve a spool (24) is moved inside a valve hole (16) in such a manner as to selectively communicate and cut off first and second operation ports (21, 22) communicating respectively with pressure chambers (131, 132) on both sides of the movable portion of the actuator (13) and first and second pump ports into which a discharge liquid pressure flows through first and second check valves (31, 32) having a preset pressure, respectively, and the operation port cut off from the pump port is made to communicate with either one of tank ports (331, 332).</p> |
