| 摘要 |
A sealing element 1 is provided on a ring. In some embodiments the ring on which the sealing element 1 is provided is a grab ring 2. Reconfigurable portions of the ring, such as teeth 11, depend from the sealing element 1 and extend radially inwardly. The reconfigurable portions 11 are arranged to be reoriented by insertion of a pipe 3, such that reorientation fo the reconfigurable portions 11 brings the sealing element 1 into engagement with the outer surface of the pipe 3. |
