| 摘要 |
PROBLEM TO BE SOLVED: To provide the changeover device of a granular material transferring passage, which can prevent that a valve element does not operate by catching foreign matter such as wire. SOLUTION: A circular changeover space chamber 3 is formed in the center part of a casing 2 in which one introducing opening 4 and two leading out openings 5A, 5B are formed; a valve element 7 which changes over either a first changeover state 7(λ) by which the introducing opening 4 and one leading out opening 5A are communicated with each other or a second changeover state 7(O) by which the introducing 4 and the other leading out opening 5B are communicated with each other, is freely swigably arranged in this changeover space chamber 3 through a supporting shaft 6; and both side wall pate parts 8A, 8B of the casing 2 matching to the changeover space chamber 3 are fixed and energized on a valve element 7 side, thereby a clearance between the valve element 7 and the side wall part of the casing 2 can be removed.
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