Method of laying high pressure fluid lines, and especially gas lines

摘要

The method entails the use of a replacement fabric hose (12) with a design pressure rating higher than that of the existing fluid pipes. The hose has an inner and/or an outer plastic lining. The external diameter of the fabric hose coincides with the internal diameter of the existing pipe. The fabric hose can be drawn into a number of interconnected existing pipes with different pressure ratings, whereby the design pressure rating of the hose is higher than at least one of the different pressure ratings of the existing pipes.