The FRANK manhole connection socket (SAM) out of the modern PE 100 resin and the embedded resistance wire offers the possibility to fabricate a welded and tensile strength anchorage of the piping system to a manhole. The embedded resistance wire porvides a good heat emission. In the combination with our FRANK puddle flange out of EPDM a permanent tight connection is given. Extruded pipes in PE 80/ PE 100 acc. to DIn 8074/75 within the standard dimensions and SDR classes for gravity pipelines can be welded in tight. The fixed bar code includes all necessary information for welding with all common univeral welding machines.