| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe unit capable of installing a gate valve and an opening/closing valve in a state of not stopping a flow when carrying out construction without stopping the flow and capable of detaching the gate valve and the opening/closing valve when indwelling for a long period of time.SOLUTION: A base part flange 15 has a sealing guiding piece 21 hermetically covering a coupling part 31 with a coupling flange 18 and guiding the movement of the coupling flange 18, a gap forming means 29 coupling the coupling flange 18 to the base part flange 15 and forming a gap part 32 capable of inserting an opening/closing valve 22 opening and closing inserting parts 16, 17 into a coupling part 31 of the coupling flange 18 and the base part flange 15 is arranged, the gap part 32 is formed in the coupling part 31 by the gap forming means 29, the opening/closing valve 22 in an opening/closing valve box 23 attached to an opening/closing valve attaching part 24 is inserted into the gap part 32, a lid member 35 attached to the gate valve attaching part 20 is removed, and a gate valve box part 14 is attached to the gate valve attaching part 20. |
