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Application filed by Gyula ZambofiledCriticalGyula Zambo
Priority to HU0500503ApriorityCriticalpatent/HUP0500503A2/en
Publication of HU0500503D0publicationCriticalpatent/HU0500503D0/en
Publication of HUP0500503A2publicationCriticalpatent/HUP0500503A2/en
The method involves splitting the gas line to be replaced such as steel or cast-iron pipe and expanding split pipe by expander cone and then drawing steel pipe strands into it. The in-drawn pipe strand has abrasion-resistant steel spacers fastened by glass fiber reinforced polyester resin. The seams attaching the in-drawn pipe strands are covered by glass fiber reinforced polyester blanket adhered by two-component polyester resin after insulation.
HU0500503A2005-05-182005-05-18Procedure for trenchless regenerating linear sections of gas conduit
HUP0500503A2
(en)