Patent ID: 6786241
Filing Date: 2004-09-07
Classification: F16L

Abstract:
A method of heat insulating an element of a hot or cold fluid distribution system comprising the following steps,providing an insulation system formed by a thin plastic jacket material around the element, the jacket forming air spaces around the element the jacket creating the air spaces by providing around the element a core having at least some portions extending away from the element and a sheet which is attached to the core at one point only and which covers the core, choosing the jacket material thickness such that the insulation value of the jacket material is insignificant relative to the overall insulation value of the insulation system, the air spaces forming substantially all of the insulation value of the insulation system, omitting other kinds of solid insulation from the air spaces, joining the sheet to itself along a longitudinally extending seam, and sealing the longitudinally extending seam.