| 摘要 |
PROBLEM TO BE SOLVED: To provide water-pipe survey equipment which can expedite the survey of the inside of pipeline of water pipe. SOLUTION: The water-pipe survey equipment 1, which is attached to an air valve 6 (equipment for city water) fixed to a vertical pipe 9 of a T-shaped pipe for the city water, is provided with: an equipment body having a connection connected to the air valve 6 and a through hole 11b formed to be almost coaxially communicated with the pipe line 6a of the air valve 6 when it is connected to the air valve 6; a transparent window body 12 fixed to the equipment body for blocking the through hole 11b; an air vent formed on the equipment body; and a blocking body which can block the air vent. COPYRIGHT: (C)2011,JPO&INPIT
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