Plastics hoses and hose assemblies. Thermoplastics textile reinforced hydraulic type. Specification.

Le présent document spécifie les exigences pour deux types de tuyaux et flexibles thermoplastiques à armature textile dont la pression maximale de service est comprise entre 69 bar et 345 bar. Ces tuyaux sont destinés au transport des liquides hydrocarbures ainsi que des fluides hydrauliques synthétiques dans une plage de températures allant de - 40 °C à + 100 °C.Ce document ne contient pas d'exigence sur les raccords. Il se limite aux performances des tuyaux et flexibles.

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Main informations

Collections

National standards and national normative documents

Publication date

October 1997

Number of pages

11 p.

Reference

NF EN 855

ICS Codes

23.040.70 Hoses and hose assemblies

Classification index

T47-280

Print number

1 - 01/09/1997

European kinship

EN 855:1996

Sumary

Plastics hoses and hose assemblies. Thermoplastics textile reinforced hydraulic type. Specification.

Le présent document spécifie les exigences pour deux types de tuyaux et flexibles thermoplastiques à armature textile dont la pression maximale de service est comprise entre 69 bar et 345 bar. Ces tuyaux sont destinés au transport des liquides hydrocarbures ainsi que des fluides hydrauliques synthétiques dans une plage de températures allant de - 40 °C à + 100 °C. Ce document ne contient pas d'exigence sur les raccords. Il se limite aux performances des tuyaux et flexibles.

Standard replaced by (1)

NF EN ISO 3949

October 2014

Standard Cancelled

Plastics hoses and hose assemblies - Textile-reinforced types for hydraulic applications - Specification

ISO 3949:2009 specifies requirements for three types of textile-reinforced thermoplastics hose and hose assembly of nominal size from 3,2 to 25. Each type is divided into two classes dependent on electrical conductivity requirements. They are suitable for use with water-based hydraulic fluids HFC, HFAE, HFAS and HFB as defined in ISO 6743‑4 at temperatures ranging from 0 °C to +60 °C and oil-based hydraulic fluids HH, HL, HM, HR and HV as defined in ISO 6743-4 at temperatures ranging from -40 °C to +100 °C. ISO 3949:2009 does not include requirements for end fittings. It is limited to the performance of hoses and hose assemblies.

Table of contents

Avant-propos
3
1 Domaine d'application
4
2 Références normatives
4
3 Types de tuyaux
4
4 Matériaux et construction
4
4.1 Tuyaux
4
4.2 Flexibles
4
5 Dimensions
5
5.1 Diamètres et concentricité
5
5.2 Longueur
5
6 Exigences
6
6.1 Exigences hydrostatiques
6
6.2 Rayon minimal de courbure
6
6.3 Exigences pour l'essai d'impulsion
7
6.4 Fuite des flexibles
7
6.5 Flexibilité à basse température
7
6.6 Résistance aux fluides
7
6.7 Résistance à l'ozone
8
6.8 Conductivité électrique
8
7 Désignation
8
8 Marquage
8
8.1 Tuyaux
8
8.2 Flexibles
8
Annexe A (normative) Méthode d'essai pour la conductibilité électrique
9

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