Sealing ring for a socket joint

摘要

The sealing ring fits into a ring swage of rectangular cross-section at the end of the pipe whilst a circumferential reinforcement ring (6) fits in an inwardly open recess of the sealing ring. The sealing ring has a lip seal (1) at the front end and a contact pressure seal (5) at the rear end which has a front tapered surface (15) inclined back to the radial plane of the pipe. When the pointed end (13) of a second pipe (10) is pushed into the sleeve the contact pressure seal is deflected over the tapered surface to adjoin the tapered end of the second pipe through the deflected lip seal towards the back and inwards relative to the pipe axis.