SIST EN ISO 17871:2020

Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO 17871:2020)

This document, in conjunction with ISO 10297 and ISO 14246, specifies design, type testing, marking
and manufacturing tests, and examinations requirements for quick-release cylinder valves intended to
be fitted to refillable transportable gas cylinders, pressure drums and tubes which convey:
— non-toxic;
— non-oxidizing;
— non-flammable; and
— non-corrosive;
compressed or liquefied gases or extinguishing agents charged with compressed gases to be used for
fire-extinguishing, explosion protection, and rescue applications.
NOTE 1 The main application of such quick-release cylinder valves is in the fire-fighting industry. However,
there are other applications such as avalanche airbags, life raft inflation and similar applications.
NOTE 2 Where there is no risk of ambiguity, gas cylinders, pressure drums and tubes are addressed with the
collective term “cylinders” within this document.
This document covers the function of a quick-release cylinder valve as a closure.
This document does not apply to quick-release cylinder valves for cryogenic equipment and for liquefied
petroleum gas (LPG).
This document does not apply to quick-release cylinder valves if used as the main closure of portable
fire extinguishers because portable fire extinguishers are not covered by transport regulation.
Quick-release cylinder valves of auxiliary refillable propellant gas cylinders used within or as part of
portable fire extinguishers are covered by this document, if these cylinders are transported separately,
e.g. for filling (see UN Model Regulations, Chapter 3.3, Special Provision 225, second note[1]).

Gasflaschen - Schnellöffnungs-Flaschenventile - Spezifikation und Baumusterprüfung (ISO 17871:2020)

Dieses Dokument legt zusammen mit ISO 10297 und ISO 14246 die Auslegung, Baumusterprüfung, Prüfungen und Untersuchungen während der Herstellung sowie Anforderungen an die Kennzeichnung von Schnellöffnungs-Flaschenventilen fest, die für wiederbefüllbare ortsbewegliche Gasflaschen, Druckfässer und Großflaschen für
   nicht giftige,
   nicht oxidierende,
   nicht entzündbare und
   nicht korrosive
verdichtete oder verflüssigte Gase oder mit verdichteten Gasen beaufschlagte Lösemittel für Lösch-, Explosionsschutz- und Rettungsanwendungen vorgesehen sind.
ANMERKUNG 1   Die Hauptanwendung derartiger Schnellöffnungs-Flaschenventile liegt in der Brandbekämpfungsindustrie. Es gibt jedoch auch andere Anwendungen, wie z. B. Lawinen-Airbags, Aufblasen von Rettungsinseln und ähnliche Anwendungen.
ANMERKUNG 2   Dort, wo kein Risiko der Mehrdeutigkeit besteht, werden Gasflaschen, Druckfässer und Großflaschen in diesem Dokument mit dem Sammelbegriff „Flaschen“ bezeichnet.
Dieses Dokument behandelt die Funktion eines Schnellöffnungs-Flaschenventils als Verschluss.
Dieses Dokument gilt nicht für Schnellöffnungs-Flaschenventile für Kryo-Ausrüstung und für Flüssiggas (LPG).
Dieses Dokument gilt nicht für Schnellöffnungs-Flaschenventile, wenn diese als Hauptverschlusseinrichtung für tragbare Feuerlöscher verwendet werden, weil tragbare Feuerlöscher nicht von den Beförderungsvorschriften erfasst sind.
Schnellöffnungs-Flaschenventile von als Zusatz dienenden nachfüllbaren Treibgasflaschen, die in oder als Teil von tragbaren Feuerlöschern verwendet werden, sind von diesem Dokument abgedeckt, sofern sie getrennt befördert werden, z. B. für das Befüllen (siehe UN Modellvorschriften, Kapitel 3.3, „Special Provision 225“, zweite Anmerkung [1]).

Bouteilles à gaz - Robinets de bouteilles à ouverture rapide - Spécifications et essais de type (ISO 17871:2020)

Le présent document, conjointement avec les normes ISO 10297 et ISO 14246, spécifie des exigences relatives à la conception, aux essais de type, au marquage, ainsi qu'aux essais de fabrication et contrôles, pour les robinets de bouteilles à ouverture rapide destinés à être montés sur des bouteilles à gaz transportables et rechargeables, des fûts à pression et des tubes qui sont conçus pour transporter des gaz liquéfiés ou comprimés:
—          non toxiques;
—          non oxydants;
—          ininflammables; et
—          non corrosifs;
ou encore des agents d'extinction chargés avec des gaz comprimés, qui sont destinés à être utilisés pour des applications d'extinction d'incendie, de protection contre les explosions ou de secours.
NOTE 1    Les applications principales de ces robinets de bouteilles à ouverture rapide sont liées à l'industrie de la lutte contre l'incendie. Il existe toutefois d'autres applications telles que les sacs gonflables anti-ensevelissement lors d'une avalanche, le gonflage de canots de sauvetage et d'autres applications similaires.
NOTE 2    Lorsqu'il n'y a pas de risque d'ambiguïté, le terme « bouteilles » est utilisé collectivement dans le présent document pour désigner les bouteilles à gaz, les fûts à pression et les tubes.
Le présent document couvre la fonction d'un robinet de bouteille à ouverture rapide en tant que dispositif de fermeture.
Le présent document ne s'applique pas aux robinets de bouteilles à ouverture rapide utilisés sur des équipements cryogéniques ou avec du gaz de pétrole liquéfié (GPL).
Le présent document ne s'applique pas aux robinets de bouteilles à ouverture rapide s'ils sont utilisés comme fermeture principale sur des extincteurs d'incendie portatifs, car ces derniers ne sont pas couverts par la réglementation sur le transport.
Les robinets de bouteilles à ouverture rapide montés sur des bouteilles rechargeables auxiliaires transportant du gaz propulseur faisant partie d'extincteurs d'incendie portatifs ou intégrés à ces derniers relèvent du présent document si lesdites bouteilles sont transportées séparément, par exemple pour le remplissage (voir le Règlement type de l'ONU, chapitre 3.3, Disposition spéciale 225, seconde note[1]).

Plinske jeklenke - Ventili jeklenk za hitro razbremenitev - Specifikacija in preskušanje tipa (ISO 17871:2020)

General Information

• Status: Published
• Public Enquiry End Date: 02-Feb-2020
• Publication Date: 13-Sep-2020
• ICS: 23.020.35 - Gas cylinders
• ICS: 23.060.40 - Pressure regulators
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 28-Aug-2020
• Due Date: 02-Nov-2020
• Completion Date: 14-Sep-2020
• Ref Project: EN ISO 17871:2020 - Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO 17871:2020)

Relations

• Replaces: SIST EN ISO 17871:2015/A1:2018 - Gas cylinders - Quick-release cylinder valves - Specification and type testing - Amendment 1 (ISO 17871:2015/Amd 1:2018)
• Effective Date: 01-Oct-2020
• Replaces: SIST EN ISO 17871:2015 - Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO 17871:2015)
• Effective Date: 01-Oct-2020
• Replaces: SIST EN ISO 17871:2015/A1:2018 - Gas cylinders - Quick-release cylinder valves - Specification and type testing - Amendment 1 (ISO 17871:2015/Amd 1:2018)
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 17871:2020
01-oktober-2020
Nadomešča:
SIST EN ISO 17871:2015
SIST EN ISO 17871:2015/A1:2018
Plinske jeklenke - Ventili jeklenk za hitro razbremenitev - Specifikacija in
preskušanje tipa (ISO 17871:2020)
Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO
17871:2020)
Gasflaschen - Schnellöffnungs-Flaschenventile - Spezifikation und Baumusterprüfung
(ISO 17871:2020)
Bouteilles à gaz - Robinets de bouteilles à ouverture rapide - Spécifications et essais de
type (ISO 17871:2020)
Ta slovenski standard je istoveten z: EN ISO 17871:2020
ICS:
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
SIST EN ISO 17871:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 17871:2020

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SIST EN ISO 17871:2020


EN ISO 17871
EUROPEAN STANDARD

NORME EUROPÉENNE

August 2020
EUROPÄISCHE NORM
ICS 23.020.35 Supersedes EN ISO 17871:2015
English Version

Gas cylinders - Quick-release cylinder valves -
Specification and type testing (ISO 17871:2020)
Bouteilles à gaz - Robinets de bouteilles à ouverture Gasflaschen - Schnellöffnungs-Flaschenventile -
rapide - Spécifications et essais de type (ISO Spezifikation und Baumusterprüfung (ISO
17871:2020) 17871:2020)
This European Standard was approved by CEN on 3 August 2020.

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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 17871:2020 E
worldwide for CEN national Members.

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SIST EN ISO 17871:2020
EN ISO 17871:2020 (E)
Contents Page
European foreword . 3

2

---------------------- Page: 4 ----------------------
SIST EN ISO 17871:2020
EN ISO 17871:2020 (E)
European foreword
This document (EN ISO 17871:2020) has been prepared by Technical Committee ISO/TC 58 "Gas
cylinders" in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
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 2021, and conflicting national standards
shall be withdrawn at the latest by February 2021.
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 17871:2015.
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 17871:2020 has been approved by CEN as EN ISO 17871:2020 without any modification.


3

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SIST EN ISO 17871:2020

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SIST EN ISO 17871:2020
INTERNATIONAL ISO
STANDARD 17871
Second edition
2020-07
Gas cylinders — Quick-release
cylinder valves — Specification and
type testing
Bouteilles à gaz — Robinets de bouteilles à ouverture rapide —
Spécifications et essais de type
Reference number
ISO 17871:2020(E)
©
ISO 2020

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SIST EN ISO 17871:2020
ISO 17871:2020(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2020
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 2020 – All rights reserved

---------------------- Page: 8 ----------------------
SIST EN ISO 17871:2020
ISO 17871:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Requirements . 3
4.1 General requirements . 3
4.2 Differing/additional requirements . 3
4.2.1 Valve connections . 3
4.2.2 Resistance to mechanical impact . 3
4.2.3 Valve operating mechanism . 3
4.2.4 Valve operating device . 3
4.2.5 Leakage . 3
4.2.6 Documentation . 4
4.2.7 Valve burst test pressure . 4
4.2.8 Valve test pressure . 4
4.2.9 Leak tightness tests . 4
4.2.10 Endurance test . 5
4.2.11 Securing arrangements . 5
4.3 Manufacturing tests and examinations . 6
5 Marking . 6
Annex A (normative) Manufacturing tests and examinations . 7
Bibliography . 8
© ISO 2020 – All rights reserved iii

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SIST EN ISO 17871:2020
ISO 17871:2020(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 58, Gas cylinders, Subcommittee SC 2,
Cylinder fittings, in collaboration with the European Committee for Standardization (CEN) Technical
Committee CEN/TC 23, Transportable gas cylinders, in accordance with the Agreement on technical
cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 17871:2015), which has been technically
revised. It also incorporates the Amendment ISO 17871:2015/Amd 1:2018.
The main changes compared to the previous edition are as follows:
— extension of the scope to valves for pressure drums and tubes;
— addition of the valve burst test pressure;
— deletion of the flame impingement test;
— deletion of internal leak tightness test at −40 °C for quick-release cylinder valves only used for fixed
fire-fighting systems installed in buildings;
— complete revision of 4.2.11 and Annex A.
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 2020 – All rights reserved

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SIST EN ISO 17871:2020
ISO 17871:2020(E)

Introduction
This document covers the function of a quick-release cylinder valve as a closure (defined by the UN
Model Regulations). Additional features of a quick-release cylinder valve (e.g. pressure regulators,
residual pressure-retaining devices, non-return devices and pressure-relief devices) can be covered by
other standards and/or regulations.
Quick-release cylinder valves complying with this document can be expected to perform satisfactorily
under normal service conditions.
This document pays particular attention to:
a) suitability of materials;
b) safety (mechanical strength, impact strength, endurance, leak tightness);
c) testing;
d) marking.
[1]
This document has been written so that it is suitable to be referenced in the UN Model Regulations .
In this document, the unit bar is used due to its universal use in the field of technical gases.
However, it is noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa
5 5 2
(1 bar = 10 Pa = 10 N/m ).
Pressure values given in this document are given as gauge pressure (pressure exceeding atmospheric
pressure) unless noted otherwise.
Charging of agents with a compressed gas is in some areas, e.g. fire-fighting, referred to as super-
pressurization.
© ISO 2020 – All rights reserved v

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SIST EN ISO 17871:2020

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SIST EN ISO 17871:2020
INTERNATIONAL STANDARD ISO 17871:2020(E)
Gas cylinders — Quick-release cylinder valves —
Specification and type testing
1 Scope
This document, in conjunction with ISO 10297 and ISO 14246, specifies design, type testing, marking
and manufacturing tests, and examinations requirements for quick-release cylinder valves intended to
be fitted to refillable transportable gas cylinders, pressure drums and tubes which convey:
— non-toxic;
— non-oxidizing;
— non-flammable; and
— non-corrosive;
compressed or liquefied gases or extinguishing agents charged with compressed gases to be used for
fire-extinguishing, explosion protection, and rescue applications.
NOTE 1 The main application of such quick-release cylinder valves is in the fire-fighting industry. However,
there are other applications such as avalanche airbags, life raft inflation and similar applications.
NOTE 2 Where there is no risk of ambiguity, gas cylinders, pressure drums and tubes are addressed with the
collective term “cylinders” within this document.
This document covers the function of a quick-release cylinder valve as a closure.
This document does not apply to quick-release cylinder valves for cryogenic equipment and for liquefied
petroleum gas (LPG).
This document does not apply to quick-release cylinder valves if used as the main closure of portable
fire extinguishers because portable fire extinguishers are not covered by transport regulation.
Quick-release cylinder valves of auxiliary refillable propellant gas cylinders used within or as part of
portable fire extinguishers are covered by this document, if these cylinders are transported separately,
[1]
e.g. for filling (see UN Model Regulations, Chapter 3.3, Special Provision 225, second note ).
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 10286, Gas cylinders — Terminology
ISO 10297:2014+Amd.1:2017, Gas cylinders — Cylinder valves — Specification and type testing
ISO 14246, Gas cylinders — Cylinder valves — Manufacturing tests and examinations
ISO 22435, Gas cylinders — Cylinde
...

SLOVENSKI STANDARD
oSIST prEN ISO 17871:2020
01-januar-2020
Plinske jeklenke - Ventili jeklenk za hitro razbremenitev - Specifikacija in
preskušanje tipa (ISO/DIS 17871:2019)
Gas cylinders - Quick-release cylinder valves - Specification and type testing (ISO/DIS
17871:2019)
Gasflaschen - Schnellöffnungs-Flaschenventile - Spezifikation und Baumusterprüfung
(ISO/DIS 17871:2019)
Bouteilles à gaz -- Robinets de bouteilles à ouverture rapide - Spécifications et essais de
type (ISO/DIS 17871:2019)
Ta slovenski standard je istoveten z: prEN ISO 17871
ICS:
23.020.35 Plinske jeklenke Gas cylinders
23.060.40 Tlačni regulatorji Pressure regulators
oSIST prEN ISO 17871:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 17871:2020

---------------------- Page: 2 ----------------------
oSIST prEN ISO 17871:2020
DRAFT INTERNATIONAL STANDARD
ISO/DIS 17871
ISO/TC 58/SC 2 Secretariat: AFNOR
Voting begins on: Voting terminates on:
2019-11-28 2020-02-20
Gas cylinders — Quick-release cylinder valves —
Specification and type testing
Bouteilles à gaz — Robinets de bouteilles à ouverture rapide — Spécifications et essais de type
ICS: 23.020.35
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 17871:2019(E)
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
©
PROVIDE SUPPORTING DOCUMENTATION. ISO 2019

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oSIST prEN ISO 17871:2020
ISO/DIS 17871:2019(E)

COPYRIGHT PROTECTED DOCUMENT
© 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: [phone]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 17871:2020
ISO/DIS 17871:2019(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirements . 2
4.1 General requirements . 2
4.2 Differing/additional requirements . 3
4.2.1 Valve connections . 3
4.2.2 Resistance to mechanical impact . 3
4.2.3 Valve operating mechanism . 3
4.2.4 Valve operating device . 3
4.2.5 Leakage . 3
4.2.6 Documentation . 3
4.2.7 Valve burst test pressure . 4
4.2.8 Valve test pressure . 4
4.2.9 Leak tightness tests . 4
4.2.10 Endurance test . 4
4.2.11 Securing arrangements . 5
4.3 Manufacturing tests and examinations . 5
5 Marking . 5
Annex A (normative) Manufacturing tests and examinations . 7
Bibliography . 8
© ISO 2019 – All rights reserved iii

---------------------- Page: 5 ----------------------
oSIST prEN ISO 17871:2020
ISO/DIS 17871:2019(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 58, Gas cylinders, Subcommittee SC 2,
Cylinder fittings.
This second edition cancels and replaces the first edition (ISO 17871:2015), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— introduction of the draft amendment published in 2018;
— extension of the scope to pressure drums and tubes;
— addition of the valve burst test pressure;
— deletion of the flame impingement test;
— complete revision of the subclause Securing arrangements and Annex A Manufacturing tests end
examination.
iv © ISO 2019 – All rights reserved

---------------------- Page: 6 ----------------------
oSIST prEN ISO 17871:2020
ISO/DIS 17871:2019(E)

Introduction
This document covers the function of a quick-release cylinder valve as a closure (defined by the UN
Model Regulations). Additional features of a quick-release cylinder valve (e.g. pressure regulators,
residual pressure-retaining devices, non-return devices, and pressure-relief devices) might be covered
by other standards and/or regulations.
This document has been written to be in conformity with the UN Model Regulations. When published,
it will be submitted to the UN Subcommittee of Experts on the Transport of Dangerous Goods with a
request that it be included in the UN Model Regulations.
Where there is any conflict between this International Standard and any applicable regulation, the
regulation always takes precedence
In this document, the unit bar is used due to its universal use in the field of technical gases.
However, it is noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa
5 5 2
(1 bar = 10 Pa = 10 N/m ).
Pressure values given in this document are given as gauge pressure (pressure exceeding atmospheric
pressure) unless noted otherwise.
Charging of agents with a compressed gas is in some areas, e.g. fire-fighting, referred to as super-
pressurization.
© ISO 2019 – All rights reserved v

---------------------- Page: 7 ----------------------
oSIST prEN ISO 17871:2020

---------------------- Page: 8 ----------------------
oSIST prEN ISO 17871:2020
DRAFT INTERNATIONAL STANDARD ISO/DIS 17871:2019(E)
Gas cylinders — Quick-release cylinder valves —
Specification and type testing
1 Scope
This document, in conjunction with ISO 10297:2014 and ISO 14246:2014, specifies design, type
testing, marking and manufacturing tests, and examinations requirements for quick-release cylinder
valves intended to be fitted to refillable transportable gas cylinders, pressure drums and tubes which
convey non-toxic, non-oxidizing, non-flammable and non-corrosive compressed or liquefied gases
or extinguishing agents charged with compressed gases to be used for fire-extinguishing, explosion
protection, and rescue applications.
NOTE 1 The main application of such quick-release cylinder valves is in the fire-fighting industry. However,
there are other applications such as to avalanche airbags, life raft inflation, and similar applications.
NOTE 2 Where there is no risk of ambiguity, gas cylinders, pressure drums and tubes are addressed with the
collective term “cylinders” within this document.
This document covers the function of a quick-release cylinder valve as a closure.
This document does not apply to quick-release cylinder valves for cryogenic equipment, for portable
fire extinguishers, or for liquefied petroleum gas (LPG).
NOTE 3 Quick-release cylinder valves of refillable propellant gas cylinders used as part of portable fire
extinguishers are also covered by this document, if these cylinders are transported separately.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 10286, Gas cylinders — Terminology
ISO 10297:2014, Gas cylinders — Cylinder valves — Specification and type testing
ISO 14246:2014, Gas cylinders — Cylinder valves — Manufacturing tests and examinations
ISO 22435, Gas cylinders — Cylinder valves with integrated pressure regulators — Specification and
type testing
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 10286, ISO 10297:2014 and
the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
© ISO 2019 – All rights reserved 1

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oSIST prEN ISO 17871:2020
ISO/DIS 17871:2019(E)

3.1
quick-release cylinder valve
cylinder valve with a valve operating mechanism designed for quick release of gas cylinder contents
that is actuated by a valve operating device and which can be activated by an activation device (3.2)
which might not be part of the quick-release cylinder valve
Note 1 to entry: Quick-release cylinder valves are further subdivided in accordance with 3.1.1 and 3.1.2.
Note 2 to entry: Commonly used valve operating mechanisms are pistons, flaps, bursting discs, piercing discs, or
differential pressure devices.
3.1.1
quick-release cylinder valve of type A
quick-release cylinder valve for one-time operation for the purpose of discharging the entire contents
of the gas cylinder where the valve operating mechanism is designed to be damaged/destroyed when
operated
Note 1 to entry: Consequently, the valve operating mechanism needs to be replaced or reconditioned before re-
use, if intended. See ISO 22434 for further information on inspection and maintenance of cylinder valves.
3.1.2
quick-release cylinder valve of types B to E
quick-release cylinder valve for multiple operation for the purpose of total or intermittent discharging
of the contents of the gas cylinder where the valve operatin
...