| 摘要 |
PURPOSE:To cause valve opening action with at the time of energizing good response but without shock release, in a pilot safety valve which is opened or closed by the electromotive force of a thermal element, by coupling the spindle of the valve to a permalloy part through an elastic material. CONSTITUTION:A pilot safety valve comprises a seat 11, a spring 13, a spindle 14, a permalloy part 16, a magnet 17 and a magnet holder 20. To couple the spindle 14 and the permalloy part 16 to each other, the male screw 16a of the spindle at one end is inserted through the hole 16a of the permalloy part and placed in the recess 16b of the permalloy part, a shock-absorbing rubber ring 21 is provided on the bottom of the recess, a push plate 22 is provided on the rubber ring and a nut 23 is engaged with the male screw and tightened. |
