| 摘要 |
PROBLEM TO BE SOLVED: To provide a compact selector valve by narrowing the valve body small. SOLUTION: An oil supply passage 77, actuator oil passages 78, 79 positioned on both sides of the oil supply passage, tank oil passages 80, 81 positioned on both sides of the actuator oil passages, a pair of load pressure detecting ports 82, 83 positioned between the oil supply passages and the actuator passages, and a drain port 88 brought into communication with these load pressure detecting ports are brought into communication with a spool hole 51. A pair of annular grooves 84, 85, meter ring notches 90, 91 formed on the circumferential part of the annular groove, sub-notches 86, 87 formed by shifting its circumferential phase from the meter ring notches, and a drain groove 89 to bring the drain port into communication with the tank oil passage, when the spool is at its center position are formed in the spool.
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