Published
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.
PUBLISHED
SSH EN 17414-1:2020
60.60
Standard published
Jun 30, 2021
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Shqip