SIST EN ISO 6149-1:2022

Connections for hydraulic fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 1: Ports with truncated housing for O-ring seal (ISO 6149-1:2022)

This document specifies dimensions for metric ports for use with the adjustable and non-adjustable stud ends as described in ISO 6149‑2 and ISO 6149‑3.
Ports in accordance with this document can be used at working pressures up to 63 MPa (630 bar[1]) for non-adjustable stud ends and 40 MPa (400 bar) for adjustable stud ends. The permissible working pressure depends upon port size, materials, design, working conditions, application, etc. See ISO 6149‑2 and ISO 6149‑3 for pressure ratings.
NOTE      The Introduction of this document gives recommendations for ports and stud ends to be used for new designs in hydraulic fluid power applications.
[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Leitungsanschlüsse für Fluidtechnik und allgemeine Anwendung - Einschraublöcher und Einschraubzapfen mit metrischem Gewinde nach ISO 261 und O-Ring-Abdichtung - Teil 1: Einschraublöcher mit Ansenkung für O-Ring-Abdichtung (ISO 6149-1:2022)

Dieses Dokument legt Maße für Einschraublöcher mit metrischem Gewinde für richtungseinstellbare und nicht richtungseinstellbare Einschraubzapfen nach ISO 6149 2 und ISO 6149 3 fest.
Einschraublöcher nach diesem Dokument können bei Arbeitsdrücken bis 63 MPa (630 bar ) mit nicht richtungseinstellbaren Einschraubzapfen und bis 40 MPa (400 bar) mit richtungseinstellbaren Einschraubzapfen verwendet werden. Der zulässige Arbeitsdruck ist abhängig von der Größe des Einschraubloches, den Werkstoffen, Konstruktion, Betriebsbedingungen, Anwendungsfall usw. Druckstufen siehe ISO 6149 2 und ISO 6149 3.
ANMERKUNG   Die Einleitung dieses Dokuments enthält Empfehlungen für die bei Neukonstruktionen in hydraulischen Anlagen der Fluidtechnik zu verwendenden Einschraublöcher und Einschraubzapfen.

Raccordements pour transmissions hydrauliques et applications générales - Orifices et éléments mâles à filetage métrique ISO 261 et joint torique - Partie 1: Orifices à joint torique dans un logement tronconique (ISO 6149-1:2022)

Le présent document spécifie les dimensions des orifices métriques pour utilisation avec les éléments mâles orientables et non orientables tels que décrits dans l’ISO 6149-2 et l’ISO 6149-3.
Les orifices conformes au présent document peuvent être utilisés jusqu'à des pressions de travail de 63 MPa (630 bar[1]) pour les éléments mâles non orientables et jusqu’à 40 MPa (400 bar) pour les éléments mâles orientables. La pression de travail admissible dépend de la dimension de l'orifice, des matériaux, de la conception, des conditions de travail, de l'utilisation, etc. Voir l'ISO 6149-2 et l’ISO 6149-3 pour les pressions de travail.
NOTE         L'Introduction du présent document donne des recommandations pour les orifices et les éléments mâles à utiliser pour de nouvelles conceptions dans des applications de transmissions hydrauliques.
[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Priključki v fluidni tehniki in splošna uporaba - Odprtine in priključki z navoji po ISO 261 in tesnilkami O - 1. del: Odprtine s tesnilko O v koničnem ohišju (ISO 6149-1:2022)

Ta dokument določa mere za metrične odprtine za uporabo z nastavljivimi in nenastavljivimi priključki z navoji, kot so opisani v standardih ISO 6149‑2 in ISO 6149‑3.
Odprtine v skladu s tem dokumentom je mogoče uporabljati pri delovnem tlaku do 63 MPa (630 barov[1]) za nenastavljive priključke z navoji in 40 MPa (400 barov) za nastavljive priključke z navoji. Dovoljeni delovni tlak je odvisen od velikosti odprtine, materialov, oblike, delovnih pogojev, uporabe itd. Za vrednosti tlaka glej standarda ISO 6149‑2 in ISO 6149‑3.
OPOMBA: V uvodu tega dokumenta so navedena priporočila glede odprtin in priključkov z navoji, ki jih je treba za fluidno tehniko uporabiti pri novem projektiranju.
[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

General Information

• Status: Published
• Public Enquiry End Date: 04-May-2022
• Publication Date: 13-Jul-2022
• ICS: 23.100.40 - Piping and couplings
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Jul-2022
• Due Date: 11-Sep-2022
• Completion Date: 14-Jul-2022
• Ref Project: EN ISO 6149-1:2022 - Connections for hydraulic fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 1: Ports with truncated housing for O-ring seal (ISO 6149-1:2022)

Relations

• Replaces: SIST EN ISO 6149-1:2019 - Connections for hydraulic fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 1: Ports with truncated housing for O-ring seal (ISO 6149-1:2019)
• Effective Date: 06-Jul-2022
• Revised: SIST EN ISO 6149-1:2019 - Connections for hydraulic fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 1: Ports with truncated housing for O-ring seal (ISO 6149-1:2019)
• Effective Date: 14-Jul-2021

Overview

EN ISO 6149-1:2022 (ISO 6149-1:2022) defines metric ports with truncated housings for O‑ring sealing used in hydraulic fluid power and general-purpose equipment. Part 1 of the ISO 6149 series specifies the dimensional requirements, port geometry and identification for ports that accept stud ends with ISO 261 metric threads and O‑ring seals. The document is intended for designers and manufacturers of hydraulic components (pumps, valves, cylinders, motors) and supports safe, interchangeable connections in hydraulic systems.

Key topics and technical requirements

• Port dimensions and geometry: Detailed dimension tables and drawings (ports covering common thread sizes, e.g. M8 through M60) for truncated housing ports with O‑ring sealing; guidance on sufficient material around the port to sustain pressure.
• Threading and tolerances: Uses ISO 261 metric threads with tolerance grade 6H (referenced to ISO 965‑1) and recommends corresponding tap drills (ISO 2306).
• O‑ring sealing: Port design ensures O‑ring compression in a truncated housing; surface finish and sealing dimensions are specified.
• Working pressures: Ports conforming to this part may be used up to 63 MPa (630 bar) with non‑adjustable stud ends and up to 40 MPa (400 bar) with adjustable stud ends - actual permissible pressure depends on port size, materials and application (see ISO 6149‑2 and ISO 6149‑3 for stud‑end pressure ratings).
• Identification and designation: Options for marking/identifying ports and the required designation format are included.
• Testing and interchangeability: Ports are to be tested with stud ends per ISO 6149‑2 and ISO 6149‑3. A clear warning is given: mixing ISO 6149 stud ends with ports from ISO 1179, ISO 9974 or ISO 11926 can create hazardous situations.

Applications

• Factory design and specification of hydraulic component ports (valve cavities, pump/motor and cylinder ports)
• Component manufacturing and quality control (machining, thread tapping, surface finish and sealing verification)
• System integration where consistent metric threads, O‑ring sealing and high working pressures are required
• Cartridge valve cavity and diagnostic port applications (specific dimensions referenced)

Who should use this standard

• Hydraulic system designers and OEMs
• Component manufacturers and machinists
• Test and certification engineers
• Procurement and standards compliance teams

Related standards

• ISO 6149‑2 (heavy‑duty stud ends - S series)
• ISO 6149‑3 (light‑duty stud ends - L series)
• ISO 261, ISO 965‑1 (metric threads and tolerances)
• ISO 2306 (tap drill sizes), ISO 5598 (vocabulary)
• Note: avoid interchange with ISO 1179, ISO 9974, ISO 11926 unless specifically validated.

Keywords: EN ISO 6149-1:2022, ISO 6149-1, hydraulic fluid power, ports, metric threads, O-ring sealing, truncated housing, stud ends, port dimensions, working pressure.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2022
Nadomešča:
SIST EN ISO 6149-1:2019
Priključki v fluidni tehniki in splošna uporaba - Odprtine in priključki z navoji po
ISO 261 in tesnilkami O - 1. del: Odprtine s tesnilko O v koničnem ohišju (ISO 6149
-1:2022)
Connections for hydraulic fluid power and general use - Ports and stud ends with ISO
261 metric threads and O-ring sealing - Part 1: Ports with truncated housing for O-ring
seal (ISO 6149-1:2022)
Leitungsanschlüsse für Fluidtechnik und allgemeine Anwendung - Einschraublöcher und
Einschraubzapfen mit metrischem Gewinde nach ISO 261 und O-Ring-Abdichtung - Teil
1: Einschraublöcher mit Ansenkung für O-Ring-Abdichtung (ISO 6149-1:2022)
Raccordements pour transmissions hydrauliques et applications générales - Orifices et
éléments mâles à filetage métrique ISO 261 et joint torique - Partie 1: Orifices à joint
torique dans un logement tronconique (ISO 6149-1:2022)
Ta slovenski standard je istoveten z: EN ISO 6149-1:2022
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 6149-1
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2022
EUROPÄISCHE NORM
ICS 23.100.40 Supersedes EN ISO 6149-1:2019
English Version
Connections for hydraulic fluid power and general use -
Ports and stud ends with ISO 261 metric threads and O-
ring sealing - Part 1: Ports with truncated housing for O-
ring seal (ISO 6149-1:2022)
Raccordements pour transmissions hydrauliques et Leitungsanschlüsse für Fluidtechnik und allgemeine
applications générales - Orifices et éléments mâles à Anwendung - Einschraublöcher und Einschraubzapfen
filetage métrique ISO 261 et joint torique - Partie 1: mit metrischem Gewinde nach ISO 261 und O-Ring-
Orifices à joint torique dans un logement tronconique Abdichtung - Teil 1: Einschraublöcher mit Ansenkung
(ISO 6149-1:2022) für O-Ring-Abdichtung (ISO 6149-1:2022)
This European Standard was approved by CEN on 2 June 2022.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, 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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6149-1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6149-1:2022) has been prepared by Technical Committee ISO/TC 131 "Fluid
power systems" in collaboration with Technical Committee CEN/TC 459/SC 10 “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 December 2022, and conflicting national standards
shall be withdrawn at the latest by December 2022.
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 6149-1:2019.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 6149-1:2022 has been approved by CEN as EN ISO 6149-1:2022 without any
modification.
INTERNATIONAL ISO
STANDARD 6149-1
Fourth edition
2022-06
Connections for hydraulic fluid power
and general use — Ports and stud
ends with ISO 261 metric threads and
O-ring sealing —
Part 1:
Ports with truncated housing for
O-ring seal
Raccordements pour transmissions hydrauliques et applications
générales — Orifices et éléments mâles à filetage métrique ISO 261 et
joint torique —
Partie 1: Orifices à joint torique dans un logement tronconique
Reference number
ISO 6149-1:2022(E)
ISO 6149-1:2022(E)
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 6149-1:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions .2
5 Interchangeability warning .5
6 Test methods . 5
7 Designation of ports .5
8 Identification . 5
9 Identification statement (reference to this document) . 5
Bibliography . 6
iii
ISO 6149-1:2022(E)
Foreword
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This document was prepared by Technical Committee
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