| 摘要 |
PROBLEM TO BE SOLVED: To provide a control valve device which can freely select an orifice which functions when a spool locks, while having a common valve body.SOLUTION: An opening/closing valve V is incorporated in a valve body B. The opening/closing valve V includes: a seat member 13 incorporated in the valve body B; an orifice 18 formed at the seat member 13; and a poppet member 12 for opening/closing a seat part 13a of the seat member 13. A control valve device communicates an actuator port 1 to a drain port 9 when the opening/closing valve V is opened. By the orifice 18 formed in the seat member 13, throttle resistance is added to a working fluid guided to the drain port 9, and moving speed of an actuator is regulated. Also, by replacing only the seat member 13 with respect to the valve body B, an orifice diameter can be freely selected.SELECTED DRAWING: Figure 1 |
