| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid passage switching device capable of simultaneously switching a plurality of passages by one switching operation using a single switching device in a system in which a plurality of selector valves are disposed. SOLUTION: This fluid passage switching device is interposed in a plurality of fluid passages to thereby switch the passages. The device is provided with a first and second passage switching members 10, 11 for switching the passage direction of the fluid, water passage 21a, 22a communicating between connecting parts 21c, 22c connected to the outside, and a fixed casing 20 in which a plurality of casing parts 21, 22 having storing parts 21a, 22b for storing a first and second passage switching members 10, 11 are stacked to constitute a plurality of layers of water passages 21a, 22a in the midway of the water passages 21a, 22a. The first and second passage switching members 10, 11 are stored over a plurality of layers, and disposed to simultaneously switch the passage directions of the plurality of layers of water passages 21a, 22a constituted in the fixed casing 20.
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