| 摘要 |
PROBLEM TO BE SOLVED: To provide a branching device with a built-in flow rate control means, capable of easily and arbitrarily setting a flow rate by reducing the cost. SOLUTION: First and second water headrace tube parts 6 and 7 are connected to a water headrace tube part 4, and a member (case body with a bottom or a disc) 23 for interrupting the flow passage of one water headrace tube part 6 is water tightly built-in the tube part 6, and a water lead-through flow passage (a) for controlling flow rate is formed in the flow passage interrupt member 23, and a flow rate control means 22 is constituted.
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