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EVS-EN 17414-1:2020

District cooling pipes - Factory made flexible pipe systems - Part 1: Classification, general requirements and test methods

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Kehtiv alates 17.08.2020
Alusdokumendid
EN 17414-1:2020
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17.08.2020
Põhitekst
This document specifies requirements and test methods for factory made thermally insulated flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe and a casing of polyethylene. The pipe assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document is intended to be used in conjunction with EN 17414-2 or EN 17414-3. This document applies only to insulated pipe assemblies, for continuous operation with water at various temperatures (1 to 30) °C and a maximum operation pressure of 25 bar dependent on material specified. The design is based on an expected service life with continuous operation of a minimum 50 years. For pipe systems with plastic service pipes, the respective temperature profiles are defined in EN 17414-2 and EN 17414-3. NOTE For the transport of other liquids, for example potable water, additional requirements could be applicable.
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