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Standard

NS-EN 17414-3:2020

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This document specifies requirements and test methods for factory made thermally insulated non bonded flexible pipe-in-pipe assemblies for directly buried district cooling distribution systems, comprising a service pipe from DN 15 to DN 200 and a casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers. This document is intended to be used in conjunction with prEN 17414-1 ). 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. This document does not cover surveillance systems. NOTE For the transport of other liquids, for example potable water, additional requirements may be applicable.

Dokumentinformasjon

  • Standard fra SN
  • Publisert:
  • Utgave: 2020-07
  • Versjon: 1
  • Varetype: NAT
  • ICS 23.040.99
  • National Committee SN/K 51

Produktrelasjon

  • Adoptert fra: EN 17414-3:2020 , 0