| 摘要 |
A transition piece for pipelines is used especially for connecting plastic pipes and metal pipes, and contains a plastic part (4) and an insert (2). This insert has, in particular, a thread and furthermore contains an annular groove (12) in which an elastic sealing ring (14) is arranged, which is surrounded by the plastic of the plastic part (4). This transition piece is intended to be developed such that the safety requirements are permanently satisfied while maintaining a functionally reliable structure, and a low production cost is required. It is proposed that at least one side wall (52, 53) on the annular groove (12) be arranged inclined in such a manner that the base of the groove (18) has a greater width than the opening of the groove (20). In the region of the opening of the groove (20) there is a wedge-shaped ring (64) which was constructed there during production of the plastic part (4). <IMAGE> |
