| 摘要 |
PROBLEM TO BE SOLVED: To restrain abrasion and striking sounds when closing an auxiliary valve, in a control valve for driving a main valve and the auxiliary valve with a single solenoid.SOLUTION: A control valve 1 comprises: an auxiliary valve body 36 attached to and detached from an auxiliary valve seat 34 formed on a main valve body 30 to open and close an auxiliary valve body; a power element 6 provided on one end of a body 5, sensing pressure to be sensed, and generating a driving force for driving the main valve body 30 in a valve opening direction when the sensed pressure becomes lower than a setting pressure; a solenoid 3 provided on the other end of the body 5 and generating a solenoid force for driving the main valve body in a valve closing direction; and an operation rod 38 that is interposed between the power element 6 and the solenoid 3 and can directly transmit the solenoid force to the power element 6 not via any of the main valve body 30 and the auxiliary valve body 36. |
