| 摘要 |
<p>PURPOSE:To join pipes with seal between an insertion opening and a receiving opening ensured even if the outer diameter of the insertion opening of a pipe and that of the receiving opening of a pipe to be joined each other do not match. CONSTITUTION:An attachment main body 21 has a sleeve 22 which is externally fit to an insertion opening 14 and has the outer diameter fit to the inner diameter of a receiving opening 18, a flange 23 which is unitedly formed with the sleeve 22 and externally fit to part of the insertion opening 14 existing in the position in contact with the edge surface of an outer jacket concrete 15 or being close to it, and a sealing agent 30 which is arranged between the inner circumference of the flange 23 and the outer circumference of the insertion opening 14.</p> |
