| 摘要 |
<p>A plumbing device comprises a clamp (10) which is clamped around a 'live' pipe (12) and which threadedly receives a cutter/valve (16) having cutter portions (30) and a valved passage (32). The cutter/valve (16) is screwed home to remove a section of pipe and to align the valved passage with the pipe. The device may then function as a stop-cock.</p> |
