| 摘要 |
PROBLEM TO BE SOLVED: To suppress displacement of a seating part with respect to a valve seat 44 of a valve body 30 in a two-stage switch valve 1.SOLUTION: In the two-stage switch valve 1, the valve body 30 is supported so as to be freely movable while coming into slide contact with guide surfaces 41, 42 at the outer peripheral edge thereof, whereby the valve body 30 can be guided in a moving direction. Thus, the two-stage switch valve 1 can suppress displacement of the seating part with respect to a valve seat 44 of a valve part 48.SELECTED DRAWING: Figure 2 |
