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Priority to DK432482ApriorityCriticalpatent/DK149480C/en
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Publication of DK149480BpublicationCriticalpatent/DK149480B/en
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Publication of DK149480CpublicationCriticalpatent/DK149480C/en
I an axial expansion joint in particular being intended for insertion in a heat insulated district heating line, and wherein a lengthwise variable bellows 3 is incorporated between two end muffs 1, 2, the bellows is welded together with the end muffs substantially at level with the outermost wave crests, whereby the outer diameter of the expansion joint being determined by an outer protective mantle 4 around the bellows 3 may be made as small as possible such that the expansion joint may be incorporated in a pre-manufactured length of piping being thermally insulated the normal way. <IMAGE>
DK432482A1982-09-291982-09-29
AXIAL COMPENSATOR FOR PIPE PIPES, NAMELY REMOVAL HEATING PIPES WITH OUTDOOR ISOLATION
DK149480C
(en)
PIPE CONTROL SYSTEM comprising a rudder-shaped insulating body with one or more rudder-shaped channels and therefor slidable stored medium rudders and the process for its manufacture