District cooling pipes - Bonded single pipe systems for directly buried cold water networks - Part 3: Factory made steel valve assembly for steel or plastic service pipe, polyurethane thermal insulation and a casing of polyethylene
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English Hardcopy
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Number of Standard:
CSN EN 17415-3
Category:
383386
Pages:
36
Released:
01.12.2021
Catalog number:
513450
DESCRIPTION
CSN EN 17415-3
CSN EN 17415-3 (38 3386) This document specifies requirements, design and test methods for factory made thermally insulated bonded valve assemblies for directly buried district cooling distribution systems, comprising a steel valve from DN 15 to DN 1 200, rigid polyurethane foam insulation and a casing of polyethylene. The valve assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers. This document applies only to insulated valve assemblies, for continuous operation with water at various temperatures (1 to 30) °C and a maximum operation pressure of 25 bar. The design is based on an expected service life with continuous operation of a minimum 50 years. NOTE - An expected service life of 50 years presupposes that treated water is used. Original English text of CSN EN Standard. The price of the Standard included all amendments and correcturs.
