NF ISO 8434-3

NF ISO 8434-3

December 2006
Standard Current

Metallic tube connections for fluid power and general use - Part 3 : O-ring face seal connectors

ISO 8434-3:2005 specifies the general and dimensional requirements for the design and performance of O-ring face seal connectors made of steel for tube outside diameters or hose inside diameters of 6 mm through 38 mm, inclusive. These connectors are for use in fluid power and general applications where elastomeric seals can be used to prevent fluid leakage, including leakage caused by variations in assembly procedures. They are intended for the connection of tubes and hose fittings to ports in accordance with ISO 6149-1. Both metric and inch tubing can be accommodated by changing the sleeve. In the past, these connectors have been used predominantly with inch tubing. For new and future designs, the use of metric tubing is preferred. ISO 8434-3:2005 also specifies a performance and qualification test for O-ring face seal connectors.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2006

Number of pages

69 p.

Reference

NF ISO 8434-3

ICS Codes

23.100.40   Piping and couplings

Classification index

E48-064-3

Print number

1 - 29/11/2006

International kinship

Sumary
Metallic tube connections for fluid power and general use - Part 3 : O-ring face seal connectors

ISO 8434-3:2005 specifies the general and dimensional requirements for the design and performance of O-ring face seal connectors made of steel for tube outside diameters or hose inside diameters of 6 mm through 38 mm, inclusive. These connectors are for use in fluid power and general applications where elastomeric seals can be used to prevent fluid leakage, including leakage caused by variations in assembly procedures. They are intended for the connection of tubes and hose fittings to ports in accordance with ISO 6149-1. Both metric and inch tubing can be accommodated by changing the sleeve. In the past, these connectors have been used predominantly with inch tubing. For new and future designs, the use of metric tubing is preferred.

ISO 8434-3:2005 also specifies a performance and qualification test for O-ring face seal connectors.

Table of contents
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  • Avant-propos
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Matériaux
    3
  • 4.1 Généralités
    3
  • 4.2 Corps de connecteurs
    3
  • 4.3 Écrous
    4
  • 4.4 Joints toriques
    4
  • 5 Exigences pression/température
    4
  • 6 Désignation des connecteurs
    5
  • 7 Exigences relatives aux tubes
    7
  • 8 Cotes surplats et tolérances
    8
  • 9 Conception
    8
  • 9.1 Connecteurs
    8
  • 9.2 Dimensions
    8
  • 9.3 Tolérances de passage
    8
  • 9.4 Tolérances angulaires
    8
  • 9.5 Détails du contour
    8
  • 9.6 Éléments mâles
    8
  • 9.7 Connecteurs à passage réduit
    8
  • 10 Filetage
    9
  • 10.1 Extrémités à joint facial torique
    9
  • 10.2 Éléments mâles (extrémités de raccordement)
    9
  • 11 Fabrication
    9
  • 11.1 Construction
    9
  • 11.2 Qualité d'exécution
    9
  • 11.3 Finition
    9
  • 11.4 Protection des connecteurs
    10
  • 11.5 Arêtes
    10
  • 12 Instructions de montage
    10
  • 13 Informations relatives à l'achat
    10
  • 14 Marquage des composants
    11
  • 15 Essai de performance et de qualification
    11
  • 15.1 Exigences de performance
    11
  • 15.2 Formulaire de données d'essai
    12
  • 16 Phrase d'identification (Référence à la présente partie de l'ISO 8434)
    12
  • Annexe A (normative) Spécifications pour le filetage en !riches 1-14 UNS - Dimensions de base
    45
  • Annexe B (normative) Facteurs de réduction pour les connecteurs réduits
    46
  • Annexe C (normative) Raccordements de tubes façonnés pour connecteurs à joint facial torique ISO 8434-3
    56
  • Annexe D (informative) Raccordements à joint facial torique pour tubes métriques ou en inches ou au moyen de différents manchons
    58
  • Annexe E (informative) Raccordements types avec des connecteurs à joint facial torique
    59
  • Annexe F (informative) Instructions de montage des connecteurs orientables dans les orifices ISO 6149-1
    62
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