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Normas DIN – AENOR
DIN EN 253:2009-07

DIN EN 253:2009-07

District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene; German and English version EN 253:2009

Tuyaux de chauffage urbain - Systèmes bloqués de tuyaux préisolés pour les résaux d'eau chaude enterrés directement - Tube de service en acier, isolation thermique en polyuréthane et tube de protection en polyéthylène; Version allemande et anglaise EN 253:2009

Fernwärmerohre - Werkmäßig gedämmte Verbundmantelrohrsysteme für direkt erdverlegte Fernwärmenetze - Verbund-Rohrsystem, bestehend aus Stahl-Mediumrohr, Polyurethan-Wärmedämmung und Außenmantel aus Polyethylen; Deutsche und Englische Fassung EN 253:2009

Fecha Anulación:
2013-05 /Withdrawn
Equivalencias internacionales:

EN 253 (2009-01)

Relación con otras normas DIN:

Reemplaza a: DIN EN 253:2007-09

Reemplazada por: DIN EN 253:2013-05

Reemplaza a: DIN EN 253/A2:2007-01

Reemplaza a: DIN EN 253:2006-02

Resumen:
This European Standard specifies requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising a steel service pipe from DN 20 to DN 1200, rigid polyurethane foam insulation and an 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 pipe assemblies, for continuous operation with hot water at varioustemperatures 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.
Keywords:
Casing, Composite jacket pipes, Composite tubes, Definitions, Distant heating, District heating, Foaming agents, Hot water networks, Jacket tubes, Lagging of a drum, Long distance heating systems, Marking, Multilingual, Pipe system, Pipelines, Pipes for long distance heating, Pipework systems, Polyethylene, Polyurethane, Shell, Specification (approval), Steel pipes, Steel tubes, Testing, Thermal insulation, Underground, Water pipe systems, Water pipes
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