NF EN 448
NF EN 448

NF EN 448

October 2019
Standard Cancelled

District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene

Le présent document concerne les raccords de service en acier avec isolation en mousse rigide de polyuréthane et tube de protection en polyéthylène. Il définit les exigences de conception et les méthodes d'essai applicables aux raccords et couvre les éléments de raccordement suivants : les coudes, les tés, les réductions, les compensateurs à usage unique et les pièces d'ancrage.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2019

Number of pages

38 p.

Reference

NF EN 448

ICS Codes

23.040.40   Metal fittings
91.140.10   Central heating systems

Classification index

E39-012

Print number

1

European kinship

EN 448:2019
Sumary
District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene

Le présent document concerne les raccords de service en acier avec isolation en mousse rigide de polyuréthane et tube de protection en polyéthylène. Il définit les exigences de conception et les méthodes d'essai applicables aux raccords et couvre les éléments de raccordement suivants : les coudes, les tés, les réductions, les compensateurs à usage unique et les pièces d'ancrage.
Replaced standards (1)
NF EN 448
NF EN 448
December 2015
Standard Cancelled
District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene

Le présent document concerne les raccords de service en acier avec isolation en mousse rigide de polyuréthane et tube de protection en polyéthylène. Il définit les exigences de conception et les méthodes d'essai applicables aux raccords de DN 20 à DN 1200 et couvre les éléments de raccordement suivants : les coudes, les tés, les réductions, les compensateurs à usage unique et les pièces d'ancrage.

Standard replaced by (1)
NF EN 448
NF EN 448
March 2025
Standard Current
District heating pipes - Bonded single pipe systems for directly buried hot water networks - Factory made fitting assemblies of steel service pipes, polyurethane thermal insulation and a casing of polyethylene

Table of contents
  • Avant-propos européen
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Exigences
  • 5 Méthodes d'essai
  • 6 Marquage
  • Annexe A (informative) Lignes directrices pour l'inspection et les essais
  • Annexe B (informative) Modes opératoires pour le soudage du tube de protection
  • Annexe C (informative) Traitement et recyclage des déchets
  • Bibliographie
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