Steel tubes and fitting. Preinsulated steel pipes and components for transportation of heating fluids. Diameters from 26,9 mm to 610 mm.

Les tubes répondant à la norme NF A 49-750 peuvent être utilisés dans la construction de conduites pour le transport de fluides caloporteurs justifiant d'une isolation thermique.

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Main informations

Collections

National standards and national normative documents

Publication date

November 1986

Number of pages

12 p.

Reference

NF A49-750

ICS Codes

23.040.10 Iron and steel pipes

77.140.75 Steel pipes and tubes for specific use

91.140.10 Central heating systems

93.025 External water conveyance systems

Classification index

A49-750

Print number

Sumary

Steel tubes and fitting. Preinsulated steel pipes and components for transportation of heating fluids. Diameters from 26,9 mm to 610 mm.

Les tubes répondant à la norme NF A 49-750 peuvent être utilisés dans la construction de conduites pour le transport de fluides caloporteurs justifiant d'une isolation thermique.

Standard replaced by (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.

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