| 摘要 |
PROBLEM TO BE SOLVED: To provide a pilot type solenoid valve which can acquire, by using only one optical sensor, whether or not a timing of communication between an air-supply port and a first output port is behind a desired timing, and whether or not a timing of communication between the air-supply port and a second output port is behind a desired timing.SOLUTION: A pilot type solenoid valve 10 includes one optical sensor 45. When an electromagnetic drive part 61 is energized to produce communication between an air-supply port 12 and a first output port 13, a shading body 43 is moved away from a shading position where the shading body 43 can block light from the optical sensor 45. When the electromagnetic drive part 61 is not energized to produce communication between the air-supply port 12 and a second output port 14, the shading body 43 is moved to the shading position. |
