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 15 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 various temperatures 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.
Označení | ČSN EN 253 +A2 (383371) |
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Katalogové číslo | 98943 |
Cena | 550 Kč550 |
Datum schválení | 1. 1. 2016 |
Datum účinnosti | 1. 2. 2016 |
Jazyk | angličtina (obsahuje pouze anglický originál) |
Počet stran | 56 stran formátu A4 |
EAN kód | 8590963989433 |
Norma byla zrušena k | 1. 3. 2020 |
a nahrazena | ČSN EN 253 (383371) |
Tato norma nahradila | ČSN EN 253 +A1 (383371) z srpna 2013 |
Dostupnost | skladem (tisk na počkání) |