Liq. or gas pipe for inserting into connecting union

摘要

The insertable pipe (1) comprises seals on the outer periphery where adjacent the inserting end section (8) into the connecting union (2), is provided a device for positive coacting with a tool (10,10a) for the pipe inserting. Pref. the device is formed of raised sections coupled to the pipe by friction or material deformation. Typically the device is raised formation (9) integral with the pipe. Alternatively the device may be a depression on the pipe outer periphery.