Pipe has cylindrical pipe end, which is provided with outer thread, where sleeve is arranged inside in pipe end for supporting pipe end by manufacturing outer thread

摘要

The pipe has a cylindrical pipe end (1), which is provided with an outer thread (2). A sleeve (3) is arranged inside the pipe end for supporting the pipe end by manufacturing the outer thread. The sleeve is formed in axial direction viewed longer than the outer thread and has a total length of 30 to 100 millimeter. The sleeve is fixed in the pipe end with a fixation (4) like form-fit pressing operation.