| 摘要 |
<p>The invention relates to a fire resistant coupling for a pipe comprising a coupling body (2) having an opening therein for receiving the pipe (1), a flexible gasket (6) for sealing the gap between the coupling body (2) and the pipe (1), and means (3) for urging the flexible gasket (6) into the gap, wherein the coupling includes a deformable graphite gasket (14) adjacent the flexible gasket (6) and adapted to seal the said gap independently of the flexible gasket (6). Preferably the coupling includes a locking member to resist the removal of the pipe from the coupling after assembly, preferably in the form of a pipe gripping ring (8).</p> |
