| 摘要 |
<p>PROBLEM TO BE SOLVED: To carry out the branching work of a pipe with a shallow burying depth, by reducing the height of a pipe coupling installed to the pipe. SOLUTION: An installing part 11 to a pipe 100, a communication passage 15 extending vertically when the installing part 11 is installed to the pipe 100, and a housing 10 to form a lateral branch passage 23 extending from the communication passage 15, are provided. A plug 3 in order to block the front end opening of the communication passage 15 is provided. To the housing 10, a branch port 24 positioning at the position on the way of the branch passage 23 is provided. A branch pipe can be connected to the branch port 24. A valve 4 to open and close the branch port 24 is housed in the branch passage 23.</p> |
