SS-EN-15698-1 District heating pipes - Preinsulated bonded twin pipe systems for directly buried hot water networks - Part 1: Twin pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene

SS-EN-15698-1 - 2009 EDITION - CURRENT

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This European Standard for District Heating Twin Pipes, specifies requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising two steel service pipes from DN 15 to DN 250, rigid polyurethane foam insulation and one cylindrical outer casing of polyethylene. The pipe assembly may also include the following additional elements: Measuring wires, spacers and diffusion barriers. This standard applies only to insulated twin pipe assemblies, for continuous operation with hot water at various temperatures up to 120 °C and occasionally with a peak temperature up to 140 °C. The estimation of expected thermal life with continuous operation at various temperatures is outlined in Annex B of EN 253.

To find similar documents by classification:

23.040.01 (Pipeline components and pipelines in general)

23.040.07 (Pipelines and its parts for district heat)

23.040.10 (Iron and steel pipes Steel pipes and tubes for specific use, see 77.140.75)

23.040.20 (Plastics pipes)

23.040.99 (Other pipeline components)

27.010 (Energy and heat transfer engineering in general)

27.220 (Heat recovery. Thermal insulation This group includes standards for general use Thermal insulation of buildings, see 91.120.10)

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Designation Name

SS-EN 15698-1:2009

Revision Level




Publication Date

Feb. 2, 2009



Page Count


International Equivalent

EN 15698-1:2009(IDT)