NF ISO 8434-3
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.
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.
- Avant-proposv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions2
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4 Matériaux3
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4.1 Généralités3
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4.2 Corps de connecteurs3
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4.3 Écrous4
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4.4 Joints toriques4
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5 Exigences pression/température4
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6 Désignation des connecteurs5
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7 Exigences relatives aux tubes7
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8 Cotes surplats et tolérances8
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9 Conception8
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9.1 Connecteurs8
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9.2 Dimensions8
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9.3 Tolérances de passage8
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9.4 Tolérances angulaires8
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9.5 Détails du contour8
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9.6 Éléments mâles8
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9.7 Connecteurs à passage réduit8
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10 Filetage9
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10.1 Extrémités à joint facial torique9
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10.2 Éléments mâles (extrémités de raccordement)9
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11 Fabrication9
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11.1 Construction9
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11.2 Qualité d'exécution9
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11.3 Finition9
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11.4 Protection des connecteurs10
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11.5 Arêtes10
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12 Instructions de montage10
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13 Informations relatives à l'achat10
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14 Marquage des composants11
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15 Essai de performance et de qualification11
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15.1 Exigences de performance11
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15.2 Formulaire de données d'essai12
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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 base45
- Annexe B (normative) Facteurs de réduction pour les connecteurs réduits46
- Annexe C (normative) Raccordements de tubes façonnés pour connecteurs à joint facial torique ISO 8434-356
- Annexe D (informative) Raccordements à joint facial torique pour tubes métriques ou en inches ou au moyen de différents manchons58
- Annexe E (informative) Raccordements types avec des connecteurs à joint facial torique59
- Annexe F (informative) Instructions de montage des connecteurs orientables dans les orifices ISO 6149-162
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