Pipe connection, with a plug fitting around the coupling zone, uses a coupling zone on a straight section of the pipe center line

摘要

The pipe (1) has a thermoplastic plug fitting (2), for a rapid coupling, around a coupling zone (16) for a release lock with a corresponding coupling. The coupling zone is in a part-zone (23) of a straight center line (18) of the pipe. The center line follows a curve outside the part-zone.