| 摘要 |
<p>An adaptor (1) and method for fitting or replacing a branch-off connection in a fluid distribution main in which the adaptor (1) is inserted into a hole in the wall of the distribution main, the adaptor (1) comprising a rigid body (2) with an internal bore (3) therein, the internal bore (3) being closed with a displaceable blocking means (10), and a service pipe (16) is inserted into the internal bore (3) of the adaptor (1) so as to displace the blocking means (10) and open the internal bore (3) of the adaptor (1).</p> |
