Tube made of concrete composite pipes with a serving as a casing of the concrete pipe and a plastic tube serving as a lining of the concrete pipe

摘要

The concrete pipe (2) has a anti-corrosion plastics inner cladding (1) and a partly flexible connection. One end (3) of the inner cladding tube is shaped as tapered end point, and the other end is in the form of a pipe socket (4) for retaining the tapered end of another pipe, which is an extension (5) of the plastics pipe. The end surface (9) rests on a peripheral shoulder (8), protruding inside the pipe by about the thickness of the wall of the extension. Between the socket end and the shoulder inside the pipe is a peripheral groove (13), contg. an elastomeric sealing ring (14) made of natural or synthetic flexible material.