| 摘要 |
PROBLEM TO BE SOLVED: To provide the solenoid valve that maintains the characteristics for a long period, improves the strength of an end of support part and excels in the workability and the handleability. SOLUTION: The first valve part 15 is stored inside of the seal face 20 that a steel ball 19 as the first spherical valve body is a cylindrical interior wall. Thereby, it forms the clearance seal which can maintain the characteristic for a long period without changing the characteristic by changing the seal diameter and it does not wear because the steel ball 19 and the seal face 20 do not contact with each other. COPYRIGHT: (C)2006,JPO&NCIPI
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