Connection between pipes which are double-walled or are provided with an internal coating

The abutment points on pipelines having heat-insulating inner cladding present particular sealing problems with the welding of the metallic outer pipe. According to the invention, the welded connections are in each case allocated an elastically deformable sealing ring which bridges over the gap in t...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ZALESKI,MANFRED, WEDEKIND,GERHARD
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The abutment points on pipelines having heat-insulating inner cladding present particular sealing problems with the welding of the metallic outer pipe. According to the invention, the welded connections are in each case allocated an elastically deformable sealing ring which bridges over the gap in the internal cladding, on the one hand is supported against the outer pipe via an outer supporting ring and on the other hand is able to compensate for axial distance changes caused thermally, while maintaining its sealing function.