| 摘要 |
PROBLEM TO BE SOLVED: To provide a solenoid valve allowing a movable iron core amount to be measured from a port without providing a hole for measuring a movable amount of a movable iron core.SOLUTION: A seat valve seat member 28, a seat ring 30, a strainer 31 and a ring 32 are fittedly inserted in a concave hole 14b of a seat holder 14 caulked with a cover 25, and an end portion 33 of the seat holder 14 is then caulked. With an annular convex collar 14c of the seat holder 14 formed by plastic deformation of the end portion 33, the seat valve seat member 28, the seat ring 30, the strainer 31 and the ring 32 are fixed to the concave hole 14b. In the seat holder 14, a port 38 is radially perforated above a load port 37. The port 38 is provided at a position where a whole circumferential groove 13c formed in a pin 13b is visible, and a movable amount of a shaft part 13b can be checked through image analysis. |
