EN ISO 6149-1:2019

SLOVENSKI STANDARD
01-julij-2019
Nadomešča:
SIST EN ISO 6149-1:2007
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
-1:2019)
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)
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 6149-1:2019)
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 6149-1:2019)
Ta slovenski standard je istoveten z: EN ISO 6149-1:2019
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
May 2019
EUROPÄISCHE NORM
ICS 23.100.40 Supersedes EN ISO 6149-1:2007
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 6149-1:2019)
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 6149-1:2019) für O-Ring-Abdichtung (ISO 6149-1:2019)
This European Standard was approved by CEN on 26 April 2019.

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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6149-1:2019 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6149-1:2019) 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 November 2019, and conflicting national standards
shall be withdrawn at the latest by November 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 6149-1:2007.
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 6149-1:2019 has been approved by CEN as EN ISO 6149-1:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 6149-1
Third edition
2019-04
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 6149-1:2019(E)
©
ISO 2019
ISO 6149-1:2019(E)
© ISO 2019
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 2019 – All rights reserved

ISO 6149-1:2019(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 . 4
6 Test methods . 4
7 Designation of ports . 4
8 Identification . 4
9 Identification statement (reference to this document) . 5
Bibliography . 6
ISO 6149-1:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 131, Fluid power systems, Subcommittee
SC 4, Connectors and similar products and components.
This third edition cancels and replaces the second edition (ISO 6149-1:2006), which has been technically
revised.
The main change since the last version is the addition of a warning statement about the hazards of
intermixing of stud ends with the various port types and a change to the port o-ring gland on sizes M8
and M10 to improve maximum volume fill.
A list of all the parts in the ISO 6149 series, can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2019 – All rights reserved

ISO 6149-1:2019(E)
Introduction
In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure
within an enclosed circuit. In general applications, a fluid (liquid or gas) may be conveyed under
pressure.
Components are connected through their threaded ports by fluid conductor connectors to tubes and
pipes or to hose connectors and hoses.
Ports are an integral part of fluid power components, i.e. pumps, motors, valves, cylinders.
For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, ISO/
TC 131/SC 4 recommends that the ISO 6149 series be used because these International Standards
specify ports and stud ends with metric threads and O-ring sealing and because the subcommittee
would like to help users by recommending one preferred system. ISO/TC 131/SC 4 further recommends
that threaded ports and stud ends in accordance with the ISO 1179 series, the ISO 9974 series and the
ISO 11926 series not be used for new designs in hydraulic fluid power applications; these International
Standards are maintained because they specify ports and stud ends that are currently used in hydraulic
systems worldwide
INTERNATIONAL STANDARD ISO 6149-1:2019(E)
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
1 Scope
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.
1)
Ports in accordance with this document can be used at working pressures up to 63 MPa [630 bar ]
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.
2 Normative references
The following documents
...