Abstract: A socket seal for a tubular member defining a socket having an open end delimited by a free edge, an inner wall extending from the free edge and a base remote from the open end, and into the open end of which socket a further member is to be inserted to form a sealed connection, the seal being composed of a sealing ring made of an elastomer material and including a holding portion embedded in the tubular member in the region of the outer edge of the socket, a band-shaped fastening portion joined to the holding portion, and a sealing portion joined to the fastening portion and having a configuration such that it has a greater thickness at a point spaced from the fastening portion than at the location where it is joined to the fastening portion.