EN ISO 8434-1:2018
(Main)Metallic tube connections for fluid power and general use - Part 1: 24° cone connectors (ISO 8434-1:2018, Corrected version 2018-10)
Metallic tube connections for fluid power and general use - Part 1: 24° cone connectors (ISO 8434-1:2018, Corrected version 2018-10)
This document specifies the general and dimensional requirements for 24° cone connectors using cutting ring and O‑ring seal cone (referred to as DKO) suitable for use with ferrous and non‑ferrous tubes with outside diameters from 4 mm to 42 mm inclusive. These connectors are for use in fluid power and general applications within the limits of pressure and temperature specified in this document.
They are intended for the connection of plain end tubes and hose fittings to ports in accordance with ISO 6149‑1, ISO 1179‑1 and ISO 9974‑1. (See ISO 12151‑2 for a related hose fitting specification.)
These connectors provide full-flow connections in hydraulic systems operating to the working pressures shown in Table 1. Because many factors influence the pressure at which a system performs satisfactorily, these values are not intended to be understood as guaranteed minimums. For every application, sufficient testing is meant to be conducted and reviewed by both the user and manufacturer to ensure that required performance levels are met.
NOTE 1 For new designs in hydraulic fluid power applications, see the requirements given in 9.6. Where the requirements of the application allow for the use of elastomeric seals, connector designs that conform to International Standards and incorporate elastomeric sealing are preferred.
NOTE 2 For use under conditions outside the pressure and/or temperature limits specified, see 5.4.
This document also specifies a performance and qualification test for these connectors.
Metallische Rohrverschraubungen für Fluidtechnik und allgemeine Anwendung - Teil 1: Verschraubungen mit 24°-Konus (ISO 8434-1:2018)
Dieses Dokument legt allgemeine und maßliche Anforderungen an 24°-Rohrverschraubungen mit Schneid-ring und O-Ring-Dichtkegel (kurz als DKO bezeichnet) fest, die für die Verwendung mit Stahlrohren und Rohren aus Nicht-Eisenmetallen mit einem Außendurchmesser von 4 mm bis einschließlich 42 mm geeignet sind. Diese Rohrverschraubungen sind für die Fluidtechnik und allgemeine Anwendungen im festgelegten Temperatur- und Druckbereich nach diesem Dokument vorgesehen.
Sie sind für die Verbindung von Rohren mit geraden Enden und Schlaucharmaturen an Einschraublöchern nach ISO 6149-1, ISO 1179-1 und ISO 9974-1 vorgesehen. (Festlegungen für Schlaucharmaturen, siehe ISO 12151-2.)
Diese Rohrverschraubungen sorgen in Hydraulikanlagen mit Arbeitsdrücken nach Tabelle 1 für Verbin-dungen mit vollem Durchfluss. Da der Druck, bei dem eine Anlage zufriedenstellend funktionsfähig ist, durch viele Faktoren beeinflusst wird, sind diese Werte nicht als abgesicherte Mindestwerte zu betrachten. Für jeden Anwendungsfall müssen ausreichende Prüfungen durchgeführt werden, die sowohl vom Anwender als auch vom Hersteller zu bewerten sind, um sicherzustellen, dass die geforderten Leistungsstufen eingehalten werden.
ANMERKUNG 1 Für Neukonstruktionen in hydraulischen Anlagen der Fluidtechnik gelten die Anforderungen in 9.6. Sofern nach den Anforderungen für den jeweiligen Anwendungsfall die Verwendung von Elastomerdichtungen zulässig ist, werden für die Rohrverschraubung Ausführungen nach Internationalen Normen mit Elastomerdichtungen bevor-zugt.
ANMERKUNG 2 Für Anwendungsfälle außerhalb des in dieser Norm festgelegten Druck- und/oder Temperatur-bereichs, siehe 5.4.
Dieses Dokument legt ferner eine Prüfung der Funktionsfähigkeit und Eignung dieser Rohrverschraubungen fest.
Raccordements de tubes métalliques pour transmissions hydrauliques et pneumatiques et applications générales - Partie 1: Raccords coniques à 24° (ISO 8434-1:2018, Version corrigée 2018-10)
Le présent document spécifie les exigences générales et dimensionnelles relatives à la conception et à la performance des raccords à compression à 24°, utilisant une bague de compression et un cône à joint torique (désigné comme DKO) qui sont adaptés à l'utilisation avec des tubes en métaux ferreux et non ferreux de diamètre extérieur de 4 mm à 42 mm inclus. Ces raccords sont utilisés dans les transmissions hydrauliques et pneumatiques et les applications générales dans les limites de pression et de température spécifiées dans le présent document.
Ils sont prévus pour le raccordement de tubes et de tuyaux à des orifices conformes à l'ISO 6149‑1, l'ISO 1179‑1 et l'ISO 9974‑1. (Voir l'ISO 12151‑2 pour les spécifications relatives aux raccordements flexibles.)
Ces raccords fournissent des connexions pleins débits dans des transmissions hydrauliques fonctionnant à des pressions d'utilisation telles que montrées dans le Tableau 1. À cause de l'influence de nombreux facteurs sur la pression à laquelle le système fonctionne de manière satisfaisante, ces valeurs ne sont pas destinées à être considérées comme des minima garantis. Pour chaque application, des essais suffisants sont à réaliser et à examiner à la fois par l'utilisateur et le fabricant, afin de s'assurer que le niveau de performance requis est atteint.
NOTE 1 Pour les nouvelles conceptions pour des applications de transmissions hydrauliques, voir les exigences données en 9.6. Dans les cas où les exigences de l'application permettent l'utilisation de joints en élastomères, la conception des raccords doit se conformer aux Normes internationales et incorporer de préférence des joints élastomères.
NOTE 2 Pour des utilisations en dehors des limites de températures et/ou de pressions spécifiées, voir 5.4.
Le présent document décrit également un essai de performance et de qualification relatif à ces raccords.
Kovinski cevni priključki za fluidno tehniko in za splošno uporabo - 1. del: Stožčasti priključki z naklonom 24° (ISO 8434-1:2018, popravljena različica 2018-10)
Ta dokument določa splošne in dimenzijske zahteve za stožčaste priključke z naklonom 24° z uporabo rezalnega obroča ter O-obročnega tesnilnega stožca (DKO), primernega za uporabo z železnimi in neželeznimi cevmi z zunanjimi premeri od 4 mm do vključno 42 mm. Ti priključki so namenjeni uporabi v fluidni tehniki ter splošnih načinih uporabe znotraj mejnih vrednosti tlaka in temperature, določenih v tem dokumentu.
Namenjeni so za priključitev navadnih končnih cevi in priključkov cevi v vrata v skladu s standardi ISO 6149-1, ISO 1179-1 in ISO 9974-1 (za ustrezne cevne fitinge glej ISO 12151-2). Ti priključki tvorijo priključke za poln pretok v hidravličnih sistemih, ki delujejo pri vrednostih delovnega tlaka, prikazanih v preglednici 1. Ker številni dejavniki vplivajo na tlak, pri katerem sistem deluje zadovoljivo, te vrednosti ne pomenijo zajamčenih minimalnih vrednosti. Za vsak način uporabe je treba opraviti ustrezno preskušanje, ki ga morata pregledati tako uporabnik kot proizvajalec, da zagotovita izpolnitev zahtevanih ravni zmogljivosti.
OPOMBA 1: Za uporabo novih modelov v fluidni tehniki glej zahteve, podane v točki 9.6. Kadar zahteve načina uporabe dovoljujejo uporabo elastomernih tesnil, imajo prednost modeli priključkov, ki so v skladu z mednarodnimi standardi in zagotavljajo elastomerno tesnjenje.
OPOMBA 2: Za uporabo pod pogoji zunaj določenih mejnih vrednosti tlaka in/ali temperature glej točko 5.4.
Ta dokument za te priključke določa tudi zmogljivostni in kvalifikacijski preskus.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2018
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SIST EN ISO 8434-1:2007
SIST EN ISO 8434-1:2007/AC:2009
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Metallic tube connections for fluid power and general use - Part 1: 24° cone connectors
(ISO 8434-1:2018)
Metallische Rohrverschraubungen für Fluidtechnik und allgemeine Anwendung - Teil 1:
Verschraubungen mit 24°-Konus (ISO 8434-1:2018)
Raccordements de tubes métalliques pour transmissions hydrauliques et pneumatiques
et applications générales - Partie 1: Raccords coniques à 24 degrés (ISO 8434-1:2018)
Ta slovenski standard je istoveten z: EN ISO 8434-1:2018
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8434-1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 23.100.40 Supersedes EN ISO 8434-1:2007
English Version
Metallic tube connections for fluid power and general use -
Part 1: 24° cone connectors (ISO 8434-1:2018)
Raccordements de tubes métalliques pour Metallische Rohrverschraubungen für Fluidtechnik
transmissions hydrauliques et pneumatiques et und allgemeine Anwendung - Teil 1: Verschraubungen
applications générales - Partie 1: Raccords coniques à mit 24°-Konus (ISO 8434-1:2018)
24° (ISO 8434-1:2018)
This European Standard was approved by CEN on 4 July 2018.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8434-1:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8434-1:2018) has been prepared by Technical Committee ISO/TC 131 "Fluid
power systems" in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and
steel fittings” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2019, and conflicting national standards
shall be withdrawn at the latest by February 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 8434-1:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 8434-1:2018 has been approved by CEN as EN ISO 8434-1:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 8434-1
Third edition
2018-07
Metallic tube connections for fluid
power and general use —
Part 1:
24° cone connectors
Raccordements de tubes métalliques pour transmissions hydrauliques
et pneumatiques et applications générales —
Partie 1: Raccords coniques à 24°
Reference number
ISO 8434-1:2018(E)
©
ISO 2018
ISO 8434-1:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
ISO 8434-1:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Materials . 3
4.1 General . 3
4.2 Connector bodies . 4
4.3 Nuts . 4
4.4 Cutting rings . 5
4.5 O-rings . 5
5 Pressure/temperature requirements . 5
6 Designation of connectors . 9
7 Requirements for tubes .12
8 Across‑flats dimensions and tolerances .12
9 Design .12
9.1 Connectors .12
9.2 Dimensions .12
9.3 Passage tolerances .13
9.4 Angular tolerances .13
9.5 Contour details .13
9.6 Ports and stud ends .13
9.7 Stud end sealing .13
10 Screw threads .13
10.1 Cone ends and nuts .13
10.2 Stud ends (connection ends) .13
11 Manufacture .13
11.1 Construction .13
11.2 Workmanship .14
11.3 Finish .14
11.4 Corners .14
12 Assembly instruction .14
13 Procurement information .15
14 Marking of components .15
15 Performance and qualification test .15
15.1 General .15
15.2 Repeated assembly test .15
15.3 Proof test .15
15.4 Burst pressure test .15
15.5 Cyclic endurance (impulse) test .15
15.6 Vibration test .15
15.7 Leakage (gas) test .
...
SLOVENSKI STANDARD
01-november-2018
Nadomešča:
SIST EN ISO 8434-1:2007
SIST EN ISO 8434-1:2007/AC:2009
Kovinski cevni priključki za fluidno tehniko in za splošno uporabo - 1. del:
Stožčasti priključki z naklonom 24° (ISO 8434-1:2018, popravljena različica 2018-
10)
Metallic tube connections for fluid power and general use - Part 1: 24° cone connectors
(ISO 8434-1:2018, Corrected version 2018-10)
Metallische Rohrverschraubungen für Fluidtechnik und allgemeine Anwendung - Teil 1:
Verschraubungen mit 24°-Konus (ISO 8434-1:2018, korrigierte Fassung 2018-10)
Raccordements de tubes métalliques pour transmissions hydrauliques et pneumatiques
et applications générales - Partie 1: Raccords coniques à 24° (ISO 8434-1:2018, Version
corrigée 2018-10)
Ta slovenski standard je istoveten z: EN ISO 8434-1:2018
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 8434-1
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2018
EUROPÄISCHE NORM
ICS 23.100.40 Supersedes EN ISO 8434-1:2007
English Version
Metallic tube connections for fluid power and general use -
Part 1: 24° cone connectors (ISO 8434-1:2018, Corrected
version 2018-10)
Raccordements de tubes métalliques pour Metallische Rohrverschraubungen für Fluidtechnik
transmissions hydrauliques et pneumatiques et und allgemeine Anwendung - Teil 1: Verschraubungen
applications générales - Partie 1: Raccords coniques à mit 24°-Konus (ISO 8434-1:2018)
24° (ISO 8434-1:2018, Version corrigée 2018-10)
This European Standard was approved by CEN on 4 July 2018.
This European Standard was corrected and reissued by the CEN-CENELEC Management Centre on 19 December 2018.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N
EUROPÄISCHES KOMITEE FÜR NORMUN G
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8434-1:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 8434-1:2018) has been prepared by Technical Committee ISO/TC 131 "Fluid
power systems" in collaboration with Technical Committee ECISS/TC 110 “Steel tubes, and iron and
steel fittings” the secretariat of which is held by UNI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by February 2019, and conflicting national standards
shall be withdrawn at the latest by February 2019.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 8434-1:2007.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 8434-1:2018, Corrected version 2018-10 has been approved by CEN as EN ISO 8434-
1:2018 without any modification.
INTERNATIONAL ISO
STANDARD 8434-1
Third edition
2018-07
Corrected version
2018-10
Metallic tube connections for fluid
power and general use —
Part 1:
24° cone connectors
Raccordements de tubes métalliques pour transmissions hydrauliques
et pneumatiques et applications générales —
Partie 1: Raccords coniques à 24°
Reference number
ISO 8434-1:2018(E)
©
ISO 2018
ISO 8434-1:2018(E)
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved
ISO 8434-1:2018(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Materials . 3
4.1 General . 3
4.2 Connector bodies . 4
4.3 Nuts . 4
4.4 Cutting rings . 5
4.5 O-rings . 5
5 Pressure/temperature requirements . 5
6 Designation of connectors . 9
7 Requirements for tubes .12
8 Across‑flats dimensions and tolerances .12
9 Design .12
9.1 Connectors .12
9.2 Dimensions .12
9.3 Passage tolerances .13
9.4 Angular tolerances .13
9.5 Contour details .13
9.6 Ports and stud ends .13
9.7 Stud end sealing .13
10 Screw threads .13
10.1 Cone ends and nuts .13
10.2 Stud ends (connection ends) .13
11 Manufacture .13
11.1 Construction .13
11.2 Workmanship .14
11.3 Finish .14
11.4 Corners .14
12 Assembly instruction .14
13 Procurement information .15
14 Marking of components .15
15 Performance and qualification test .15
15.1 General .15
15.2 Repeated assembly test .15
15.3 Proof test .15
15.4 Burst pressure test .15
15.5 Cyclic endurance (impulse) test .
...
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