Elastomer sealing ring for push-in connection and reusable inner sleeve - has radially deformable inner part to allow removal of sleeve and sleeve lining while anchored in pipe wall.

摘要

The inner sleeve lining (4) which forms the free space (6) has the smallest possible radial OD which on removing the lower sleeve (3) still allows the sealing ring (1) to remain fixed in the sleeve wall. Only the radially inner part of the sealing ring is severely deformed whilst the radially outer part of the ring keeps its radial position against the inner sleeve of the sleeve. The sealing ring and lining part have certain measurements to conform with each other regarding their radial thickness. The radial thickness of the sealing ring is measured so that its deformation which occurs on removing the inner sleeve lining (3) as the free space lining part passes over the ring does not exceed the max. radial deformation of the ring. USE/ADVANTAGE - Elastomer sealing ring in which lining part forming the free space can be removed in one work-step when removing the sleeve.