EN ISO 6149-4:2017

Connections for fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs (ISO 6149-4:2017)

ISO 6149-4:2017 specifies dimensions and performance requirements for external hex and internal hex port plugs for use with ISO 6149‑1 ports.
Port plugs in accordance with this document can be used at working pressures up to 63 MPa (630 bar[1]). The permissible working pressure depends upon the plug end size, materials, design, working conditions, application, etc.
Conformance to the dimensional information in this document does not guarantee rated performance. Each manufacturer is expected to perform testing according to the specification contained in this document to assure that components comply with the performance ratings.
WARNING: The use of stud ends conforming to this document with ports conforming to the relevant parts of ISO 1179, ISO 9974 and ISO 11926 could lead to a hazardous situation.
[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 4: Maße, Konstruktion, Prüfverfahren und Anforderungen an Verschlussschrauben mit Außen- oder Innen-Sechskant (ISO 6149-4:2017)

Dieses Dokument legt die Maße für und die Leistungsanforderungen an Verschlussschrauben mit Außen- oder Innen-Sechskant für die Verwendung in Einschraublöchern nach ISO 6149-1 fest.
Einschraubzapfen nach diesem Dokument können bei Arbeitsdrücken bis 63 MPa (630 bar1)) verwendet werden. Der zulässige Arbeitsdruck ist abhängig von der Größe des Einschraubzapfens, den Werkstoffen, der Konstruktion, den Betriebsbedingungen, dem Anwendungsfall usw.
Eine Übereinstimmung mit den Maßangaben in diesem Dokument stellt keine Gewährleistung für die Nennleistung dar. Von jedem Hersteller wird erwartet, dass er die Prüfungen nach den in diesem Dokument enthaltenen Festlegungen durchführt, um sicherzustellen, dass die Bauteile den Leistungsangaben entsprechen.
WARNUNG — Die Verwendung von Einschraubzapfen entsprechend diesem Dokument mit Einschraublöchern entsprechend den relevanten Teilen der ISO 1179, ISO 9974 und ISO 11926 könnte zu einer gefährlichen Situation führen.

Raccordements pour transmissions hydrauliques et applications générales - Orifices et éléments mâles à filetage métrique ISO 261 et joint torique - Partie 4: Dimensions, conception, méthodes d'essai et exigences des bouchons d'orifice à six pans externes et à six pans internes (ISO 6149-4:2017)

ISO 6149-4:2017 spécifie les dimensions et les exigences de performance des bouchons d'orifice à six pans externes et à six pans internes destinés à être utilisés avec les orifices ISO 6149‑1.
Les bouchons d'orifice conformes au présent document peuvent être utilisés jusqu'à des pressions d'utilisation de 63 MPa (630 bar [1]). La pression d'utilisation admissible dépend de la dimension du bouchon, des matériaux, de la conception, des conditions d'utilisation, de l'application, etc.
La conformité aux informations dimensionnelles du présent document ne garantit pas les performances nominales. Il est attendu de chaque fabricant qu'il effectue des essais conformes aux spécifications contenues dans le présent document pour s'assurer que les composants satisfont aux performances nominales.
AVERTISSEMENT: L'utilisation d'éléments mâles conformes au présent document avec des orifices conformes aux parties pertinentes des normes ISO 1179, ISO 9974 et ISO 11926 peut engendrer une situation dangereuse.
[1] 1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2.

Priključki v fluidni tehniki in za splošno uporabo - Vhodi in ravni zaključki z navoji po ISO 261 in tesnilkami O - 4. del: Mere, konstrukcija, preskusne metode ter zahteve za zunanje in notranje čepe (ISO 6149-4:2017)

Ta dokument določa mere in zahtevane lastnosti za zunanje in notranje čepe za uporabo z vhodi standarda ISO 6149-1.
Čepi v skladu s tem dokumentom se lahko uporabljajo pri delovnem tlaku do 63 MPa (630 barov1).
Dovoljeni delovni tlak je odvisen od velikosti konca čepa, uporabljenih materialov, oblike, delovnih pogojev, načina uporabe itd.
Skladnost z informacijami o merah v tem dokumentu ne zagotavlja nazivne zmogljivosti.
Od vsakega proizvajalca se pričakuje, da bo opravil preskušanje v skladu s specifikacijami v tem dokumentu, da zagotovi skladnost komponent z ocenami zmogljivosti.
OPOZORILO: Uporaba ravnih zaključkov, ki so skladni s tem dokumentom, z vhodi, ki so v skladu z ustreznimi deli standardov ISO 1179, ISO 9974 in ISO 11926, lahko privede do nevarne situacije.

General Information

• Status: Published
• Publication Date: 12-Sep-2017
• Withdrawal Date: 30-Mar-2018
• ICS: 23.100.40 - Piping and couplings
• Technical Committee: ECISS/TC 110 - Steel tubes, and iron and steel fittings
• Drafting Committee: ECISS/TC 110 - Steel tubes, and iron and steel fittings
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 13-Sep-2017
• Completion Date: 13-Sep-2017
• Ref Project: SIST EN ISO 6149-4:2017 - Connections for fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs (ISO 6149-4:2017)

Relations

• Replaces: EN ISO 6149-4:2014 - Connections for fluid power and general use - Ports and stud ends with ISO 261 metric threads and O-ring sealing - Part 4: Dimensions, design, test methods and requirements for external hex and internal hex port plugs (ISO 6149-4:2006)
• Effective Date: 20-Sep-2017

Overview

EN ISO 6149-4:2017 specifies the dimensions, design, test methods and performance requirements for external hex and internal hex port plugs intended for use with ISO 6149‑1 ports in fluid power and general applications. The document covers metric screw threads per ISO 261 with O‑ring sealing, and is intended for components used at working pressures up to 63 MPa (630 bar) (permissible pressure depends on size, materials and application). The standard also includes important safety guidance about intermixing types of ports and stud ends.

Key topics and technical requirements

• Port plug types: external hex (hexagon head) and internal hex (Allen) port plugs designed to fit ISO 6149‑1 ports.
• Threads: metric screw threads conforming to ISO 261, tolerance class 6g.
• Dimensions & tolerances: plug dimensions shown in figures/tables of the standard; hex tolerances referenced to ISO 4759‑1 (external hex product grade C, internal hex product grade A). Minimum geometric relationships include across-corner and side-flat proportions. External hex corners are chamfered 10°–30°.
• Sealing: plugs may use elastomeric O‑rings (referenced quality and acceptance criteria such as ISO 3601‑3).
• Performance & testing: specifies working pressure/temperature suitability (typical range −40 °C to +120 °C). Conformance to dimensions alone does not guarantee rated performance-manufacturers must perform the tests described in the standard to verify performance.
• Safety warning: mixing stud ends or ports conforming to ISO 6149‑4 with ports from ISO 1179, ISO 9974, ISO 11926 can create hazardous situations.

Applications and who uses this standard

• Hydraulic and fluid power system designers and OEMs specifying threaded port plugs for manifolds, valves, pumps, reservoirs and general hydraulic equipment.
• Manufacturers and quality engineers producing or testing external hex/internal hex port plugs to ensure dimensional and performance compliance.
• Procurement/specification engineers and test laboratories validating working pressure, temperature and sealing performance.
• Maintenance teams and safety officers assessing compatibility risks when replacing plugs or interfacing different port standards.

Related standards

• ISO 6149‑1 (ports with truncated housing for O‑ring seal)
• ISO 6149‑2 (stud ends)
• ISO 261 (metric screw threads)
• ISO 3601‑3 (O‑ring acceptance)
• ISO 4759‑1 (fastener tolerances)
• ISO 19879, ISO 9227 and others referenced for test methods and coatings

EN ISO 6149-4:2017 is essential when specifying or supplying metric, O‑ring sealed port plugs for high-pressure hydraulic systems-use it to ensure dimensional interchangeability, tested performance and safer component selection.

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2017
1DGRPHãþD
SIST EN ISO 6149-4:2015
3ULNOMXþNLYIOXLGQLWHKQLNLLQ]DVSORãQRXSRUDER9KRGLLQUDYQL]DNOMXþNL]QDYRML
SR,62LQWHVQLONDPL2GHO0HUHNRQVWUXNFLMDSUHVNXVQHPHWRGHWHU
]DKWHYH]D]XQDQMHLQQRWUDQMHþHSH,62
Connections for fluid power and general use - Ports and stud ends with ISO 261 metric
threads and O-ring sealing - Part 4: Dimensions, design, test methods and requirements
for external hex and internal hex port plugs (ISO 6149-4:2017)
Raccordements pour transmissions hydrauliques et applications générales - Orifices et
éléments mâles à filetage métrique ISO 261 et joint torique - Partie 4: Dimensions,
conception, méthodes d'essai et exigences des bouchons d'orifice à six pans externes et
à six pans internes (ISO 6149-4:2017)
Ta slovenski standard je istoveten z: EN ISO 6149-4:2017
ICS:
23.100.40 Cevna napeljava in sklopke Piping and couplings
23.100.60 )LOWULWHVQLODLQ Filters, seals and
RQHVQDåHYDQMHWHNRþLQ contamination of fluids
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 6149-4
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2017
EUROPÄISCHE NORM
ICS 23.100.40 Supersedes EN ISO 6149-4:2014
English Version
Connections for fluid power and general use - Ports and
stud ends with ISO 261 metric threads and O-ring sealing -
Part 4: Dimensions, design, test methods and
requirements for external hex and internal hex port plugs
(ISO 6149-4:2017)
Raccordements pour transmissions hydrauliques et
applications générales - Orifices et éléments mâles à
filetage métrique ISO 261 et joint torique - Partie 4:
Dimensions, conception, méthodes d'essai et exigences
des bouchons d'orifice à six pans externes et à six pans
internes (ISO 6149-4:2017)
This European Standard was approved by CEN on 7 September 2017.

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: Avenue Marnix 17, B-1000 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6149-4:2017 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 6149-4:2017) 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 March 2018 and conflicting national standards shall be
withdrawn at the latest by March 2018.
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 6149-4:2014.
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 6149-4:2017 has been approved by CEN as EN ISO 6149-4:2017 without any
modification.
INTERNATIONAL ISO
STANDARD 6149-4
Second edition
2017-08
Connections for fluid power and
general use — Ports and stud ends
with ISO 261 metric threads and
O-ring sealing —
Part 4:
Dimensions, design, test methods and
requirements for external hex and
internal hex port plugs
Raccordements pour transmissions hydrauliques et applications
générales — Orifices et éléments mâles à filetage métrique ISO 261 et
joint torique —
Partie 4: Dimensions, conception, méthodes d’essai et exigences des
bouchons d’orifice à six pans externes et à six pans internes
Reference number
ISO 6149-4:2017(E)
©
ISO 2017
ISO 6149-4:2017(E)
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, 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
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved

ISO 6149-4:2017(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Dimensions . 2
4.1 Plug dimensions . 2
4.2 Hex tolerances . 2
4.3 Screw threads. 2
5 Requirements . 2
5.1 Working pressures and working temperatures . 2
5.2 Performance . 3
6 O-rings . 3
7 Test methods . 3
8 Designation of port plugs . 3
9 Identification . 3
10 Manufacture . 4
10.1 Construction . 4
10.2 Workmanship . 4
10.3 Finish . 4
11 Procurement information . 4
12 Marking . 4
13 Identification statement (reference to this document) . 4
Bibliography .10
ISO 6149-4:2017(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 on 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 the following
URL: w w w . i s o .org/ iso/ foreword .html.
This document was prepared by ISO/TC 131, Fluid power systems, SC 4, Connectors and similar products
and components.
This second edition cancels and replaces the first edition (ISO 6149-4:2006), of which it constitutes a
minor revision.
The main change since last version is the addition of a warning statement about the hazards of
intermixing of stud ends with the various port types.
iv © ISO 2017 – All rights reserved

ISO 6149-4:2017(E)
Introduction
In fluid power systems, power is transmitted and controlled through a fluid (liquid or gas) under
pressure within an enclosed circuit. In general applications, a fluid can be conveyed under pressure.
Components are connected through their threaded ports by stud ends on fluid conductor connectors to
tubes and pipes or to hose fittings and hoses. Fluid ports are closed by inserting a plug in the port.
INTERNATIONAL STANDARD ISO 6149-4:2017(E)
Connections for fluid power and general use — Ports
and stud ends with ISO 261 metric threads and O-ring
sealing —
Part 4:
Dimensions, design, test methods and requirements for
external hex and internal hex port plugs
1 Scope
This document specifies dimensions and performance requirements for external hex and internal hex
port plugs for use with ISO 6149-1 ports.
1)
Port plugs in accordance with this document can be used at working pressures up to 63 MPa (630 bar ).
The permissible working pressure depends upon the plug end size, materials, design, working
conditions, application, etc.
Conformance to the dimensional information in this document does not guarantee rated performance.
Each manufacturer is expected to perform testing according to the specification contained in this
document to assure that components comply with the performance ratings.
WARNING — The use of stud ends conforming to this document with ports conforming to the
relevant parts of ISO 1179, ISO 9974 and ISO 11926 could lead to a hazardous situation.
2 Normative references
...