FREMGANGSMAADE TIL FREMSTILLING AF EN TRAEKFAST RAERFORBINDELSE SAMT VED FREMGANGSMAADEN FREMSTILLET RAERFORBINDELSE

摘要

A prefabricated assembly for forming a high tensile strength pipe connection is formed by providing a metallic muff and pressing one end of a pipe adapter made from plastic material into the muff. The metallic muff has an internal diameter formed with sawtooth projections which penetrate the material of the pipe adapter and the penetration is enhanced by inserting a smooth support sleeve into the pipe adapter, the support sleeve being stiffer than the pipe adapter and operating to effect a positive and frictionally locking connection. The opposite end of the pipe adapter may then be attached by welding or the like with a plastic material pipe to form thereby a tight connection at a utilization site.