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National standards and national normative documents

Publication date

April 2003

Number of pages

50 p.

Reference

NF EN 253

ICS Codes

23.040.07 Pipelines and its parts for district heat

23.040.10 Iron and steel pipes

77.140.75 Steel pipes and tubes for specific use

Classification index

E39-011

Print number

1 - 16/07/2003

European kinship

EN 253:2003

Sumary

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

Le présent document définit les spécifications et les méthodes d'essais applicables aux longueurs droites de systèmes préfabriqués de tubes isolés thermiquement pour réseaux d'eau chaude enterrés directement.

Replaced standards (1)

NF EN 253

December 1994

Standard Cancelled

Preinsulated bonded pipe systems for underground hot water networks. Pipe assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene.

Le présent document définit les spécifications et les méthodes d'essais applicables aux longueurs droites de systèmes préfabriqués de tubes isolés thermiquement pour réseaux enterrés d'eau chaude comprenant : - un tube de service en acier de DN 20 à DN 600, - une isolation en mousse rigide de polyuréthane, - un tube de protection en polyéthylène de haute densité. Ces systèmes sont utilisés pour l'eau chaude à des températures pouvant atteindre 120 °C pointes à 140 °C.

Standard replaced by (1)

NF EN 253

February 2009

Standard Cancelled

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

Le présent document définit les exigences et les méthodes d'essai applicables aux longueurs droites de systèmes préfabriqués de tuyaux isolés thermiquement pour réseaux d'eau chaude enterrés directement comprenant un tube de service en acier de DN 15 à DN 1200, une isolation en mousse rigide de polyuréthane et un tube de protection en polyéthylène.

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