Gas cylinders - Cylinder valves - Specification and type testing (ISO 10297:2014)

EN ISO 10297 specifies design, type testing and marking requirements for: a) cylinder valves intended to be fitted to refillable transportable gas cylinders; b) main valves (excluding ball valves) for cylinder bundles; c) cylinder valves or main valves with integrated pressure regulator (VIPR); which convey compressed, liquefied or dissolved gases. NOTE 1 Where there is no risk of ambiguity, cylinder valves, main valves and VIPR are addressed with the collective term “valves” within this International Standard. This International Standard covers the function of a valve as a closure. This International Standard does not apply to - valves for cryogenic equipment, portable fire extinguishers and liquefied petroleum gas (LPG), and - quick-release valves (e.g. for fire-extinguishing, explosion protection and rescue applications), nonreturn valves or ball valves.

Gasflaschen - Flaschenventile - Spezifikation und Baumusterprüfungen (ISO 10297:2014)

Diese Internationale Norm legt Anforderungen an die Auslegung, Prüfverfahren und Kennzeichnung von Flaschenventilen einschließlich Flaschenventilen mit integriertem Druckregler (VIPR, en: valves with integrated pressure regulator) zur Verwendung mit ortsbeweglichen Gasflaschen oder als Hauptabsperrventil für Bündel für verdichtete, verflüssigte oder gelöste Gase fest. Sofern Flaschenventile für Druckfässer oder Anhänger verwendet werden, darf diese Norm als Leitfaden verwendet werden.
Diese Internationale Norm gilt nicht für Flaschenventile für Kryo-Anlagen, tragbare Feuerlöscher oder Flüssiggas (LPG, en: Liquefied Petroleum Gas) und für Schnellöffnungsventile und Rückschlagventile. Zusätzliche Bestandteile eines Flaschenventils in Erweiterung der Hauptabsperrfunktion sind ebenfalls vom Anwendungsbereich ausgeschlossen.
ANMERKUNG 1   Anforderungen für Ventile für Kryo-Behälter sind in ISO 21011 und auf regionaler Ebene z. B. in EN 1626 festgelegt. Anforderungen an Ventile für tragbare Feuerlöscher sind auf regionaler Ebene z. B. in der Reihe EN 3 festgelegt. Anforderungen für Schnellöffnungsventile und Rückschlagventile könnten in regionalen Rechtsvorschriften/Normen festgelegt sein. Hinsichtlich der Betriebssicherheit beim Füllen und bei der Handhabung von mit Schnellöffnungsventilen ausgestatteten Flaschen siehe EIGA SI 08/CGA SB-39.
ANMERKUNG 2   Anforderungen für Herstellungsprüfungen und -überprüfungen von Gasflaschenventilen und VIPR sind in ISO 14246 enthalten.
ANMERKUNG 3   Zusätzliche Anforderungen für VIPR sind in ISO 22435 oder ISO 10524-3 festgelegt. Zusätzliche Anforderungen für Restdruckeinrichtungen und Rückschlageinrichtungen sind in ISO 15996 festgelegt. Zusätzliche Anforderungen für Druckentlastungseinrichtungen könnten in regionalen Rechtsvorschriften/Normen festgelegt sein.
ANMERKUNG 4   Zusätzliche Anforderungen für Flaschenventile für Atemschutzgeräte sind auf regionaler Ebene z. B. in der Reihe EN 144 festgelegt. Zusätzliche Anforderungen für Schnellöffnungsventile für stationäre Feuerlöschanlagen sind auf regionaler Ebene z. B. in EN 12094-4 festgelegt.

Bouteilles à gaz - Robinets de bouteilles - Spécifications et essais de type (ISO 10297:2014)

L'ISO 10297:2014 spécifie la conception, les méthodes d'essai de type et les exigences de marquage pour:
a)    les robinets de bouteilles destinés à être montés sur des bouteilles à gaz transportables rechargeables;
b)    les vannes de cadre (à l'exception des robinets à boisseau sphérique) pour cadres de bouteilles;
c)    les robinets de bouteilles ou vannes de cadre à régulateur intégré (VIPR);
qui acheminent des gaz comprimés, liquéfiés ou dissous.
L'ISO 10297:2014 couvre la fonction d'un robinet en tant que dispositif de fermeture. Elle ne s'applique pas aux robinets pour équipement cryogénique, extincteurs portables et gaz de pétrole liquéfié (GPL) et aux robinets à ouverture rapide (par exemple, pour extinction d'incendie, protection contre l'explosion et opérations de sauvetage), aux clapets anti-retour ou aux robinets à boisseau sphérique.

Plinske jeklenke - Ventili za jeklenke - Specifikacija in preskus tipa (ISO 10297:2014)

Standard EN ISO 10297 določa načrtovanje, preskus tipa in zahteve za označevanje za: a) ventile za jeklenke, ki so namenjeni vgradnji v ponovno polnljive premične plinske jeklenke; b) glavne ventile (brez krogelnih ventilov) za snope jeklenk; c) ventile za jeklenke ali glavne ventile z vgrajenim regulatorjem tlaka (VIPR); ki prenašajo stisnjene, utekočinjene ali raztopljene pline. OPOMBA 1 Če ne obstaja tveganje dvoumnosti, so ventili za jeklenke, glavni ventili in VIPR v tem standardu imenovani s skupnim izrazom »ventili«. Ta mednarodni standard obravnava funkcijo ventila kot zaporo. Ta mednarodni standard ne velja za – ventile za kriogeno opremo, premične gasilnike in utekočinjen naftni plin (LPG), in – ventile s hitrim izpustom (npr. za gašenje požara, zaščito pred eksplozijami in reševanje), nepovratne ventile ali krogelne ventile.

General Information

Status
Published
Public Enquiry End Date
31-Oct-2012
Publication Date
02-Sep-2014
Withdrawal Date
09-Apr-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
14-Aug-2014
Due Date
19-Oct-2014
Completion Date
03-Sep-2014

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN ISO 10297:2014
01-oktober-2014
1DGRPHãþD
SIST EN ISO 10297:2006
Plinske jeklenke - Ventili za jeklenke - Specifikacija in preskus tipa (ISO
10297:2014)
Gas cylinders - Cylinder valves - Specification and type testing (ISO 10297:2014)
Gasflaschen - Flaschenventile - Spezifikation und Baumusterprüfungen (ISO
10297:2014)
Bouteilles à gaz - Robinets de bouteilles - Spécifications et essais de type (ISO
10297:2014)
Ta slovenski standard je istoveten z: EN ISO 10297:2014
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
SIST EN ISO 10297:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10297:2014

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SIST EN ISO 10297:2014

EUROPEAN STANDARD
EN ISO 10297

NORME EUROPÉENNE

EUROPÄISCHE NORM
July 2014
ICS 23.060.40; 23.020.30 Supersedes EN ISO 10297:2006
English Version
Gas cylinders - Cylinder valves - Specification and type testing
(ISO 10297:2014)
Bouteilles à gaz - Robinets de bouteilles - Spécifications et Gasflaschen - Flaschenventile - Spezifikation und
essais de type (ISO 10297:2014) Baumusterprüfungen (ISO 10297:2014)
This European Standard was approved by CEN on 28 June 2014.

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, 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
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10297:2014 E
worldwide for CEN national Members.

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SIST EN ISO 10297:2014
EN ISO 10297:2014 (E)
Contents Page
Foreword .3
2

---------------------- Page: 4 ----------------------

SIST EN ISO 10297:2014
EN ISO 10297:2014 (E)
Foreword
This document (EN ISO 10297:2014) 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 January 2015, and conflicting national standards shall be withdrawn at
the latest by January 2015.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10297:2006.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 10297:2014 has been approved by CEN as EN ISO 10297:2014 without any modification.
3

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SIST EN ISO 10297:2014

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SIST EN ISO 10297:2014
INTERNATIONAL ISO
STANDARD 10297
Third edition
2014-07-15
Gas cylinders — Cylinder valves —
Specification and type testing
Bouteilles à gaz — Robinets de bouteilles — Spécifications et essais de
type
Reference number
ISO 10297:2014(E)
©
ISO 2014

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2014
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
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2014 – All rights reserved

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

Contents Page
Foreword .iv
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms, definitions and symbols . 2
4 Valve description . 6
5 Valve design requirements .11
5.1 General .11
5.2 Materials .12
5.3 Dimensions .12
5.4 Valve connections .13
5.5 Mechanical strength .14
5.6 Valve operating mechanism .14
5.7 Valve operating device .17
5.8 Leakage .17
5.9 Resistance to ignition .17
6 Type testing.18
6.1 General .18
6.2 Documentation .20
6.3 Test samples .20
6.4 Test report .20
6.5 Test temperatures .21
6.6 Test pressures .21
6.7 Test gases .21
6.8 Test schedule .22
6.9 Hydraulic burst pressure test .24
6.10 Flame impingement test .25
6.11 Excessive torque tests .25
6.12 Leak tightness tests .25
6.13 Endurance test .27
6.14 Visual examination .28
7 Marking .28
Annex A (normative) Impact test .30
Annex B (normative) Tests for acetylene valves .32
Annex C (normative) Oxygen pressure surge test .33
Annex D (informative) Example of test schedule .37
Annex E (informative) Example of a vacuum test
.38
Annex F (normative) Endurance test machine .39
Bibliography .41
© ISO 2014 – All rights reserved iii

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SIST EN ISO 10297:2014
ISO 10297:2014(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. 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. 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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT), see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder
fittings.
This third edition cancels and replaces the second edition (ISO 10297:2006), which has been technically
revised.
The main technical modifications are:
a) Scope: inclusion of main valves and valves with integrated pressure regulator (VIPR), exclusion of
quick-release valves, non-return valves and ball valves;
b) Terms, definitions and symbols: introduction of new definitions and adaptation of existing
definitions;
c) Valve description: new clause with figures and general description;
d) Valve design requirements:
1) General: inclusion of additional requirement of internal leak tightness at −40 °C during transport
and storage;
2) Materials: deletion of requirements already given in ISO 11114-1 and ISO 11114-2; deletion of
ageing sensitivity test for non-metallic materials; addition of requirement on ductility of valve
body material; addition of requirement on suitability of lubricants for valve test pressure;
3) Dimensions: deletion of requirement on bore of the valve with regard to flow requirement and
adaption of requirements for valves fitted with a valve protection cap according to ISO 11117;
4) Valve connections: addition of requirements for separate valve filling connection;
5) Resistance to mechanical impact: addition of requirement for impact testing valves protected
by a valve guard but fixed only to the valve, modification of acceptance criteria;
iv © ISO 2014 – All rights reserved

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

6) Valve operating mechanism: inclusion of allowance to increase the endurance torque for some
valve designs and to adjust compressed packed valves during endurance testing; replacement of
acetylene flashback test by alternative tests without using acetylene and addition of acetylene
decomposition test for main valves; modification of acceptance criteria;
7) Valve operating device: addition of requirement on the handwheel diameter required to achieve
the minimum closing torque; modification of acceptance criteria for flame impingement test;
8) Resistance to ignition: addition of requirement of oxygen pressure surge testing for certain
cylinder valves for gas mixtures containing oxygen and other oxidizing gases and of detailed
information on acceptance criteria; addition of mandatory reference to oxygen pressure surge
test for VIPR specified in ISO 22435 or ISO 10524-3 and for cylinder valves with residual
pressure devices specified in ISO 15996;
e) Production requirements: deletion of all respective requirements but reference to ISO 14246 in
scope;
f) Type testing:
1) General: addition of requirements for repeating tests depending on applied changes for a valve
design;
2) Documentation: addition of detailed information on documentation required;
3) Test samples: addition of requirement to have pressure gauges/indicators fitted;
4) Test report: addition of detailed information required;
5) Test pressures: adaption of information on burst test pressure (former hydraulic test pressure);
6) Test gas: addition of requirement for using helium or hydrogen or an inert mixture of these
gases for the leak tightness tests for cylinder valves for helium and hydrogen and their mixtures;
extension of requirements on gas quality;
7) Test schedule: deletion of ageing as preconditioning and leak tightness test before ageing;
addition of internal leak tightness test at −40 °C after endurance test; adaption of oxygen
pressure surge test for cylinder valves with lubricants not rated for valve test pressure; listing
of impact test;
8) Hydraulic burst pressure test: addition of testing the valve in closed position;
9) Excessive torque tests: addition of requirement to carry out the test with the valve operating
device in place; differentiation between handwheel and key/toggle operated valves; extension
of tests with requirement of two additional test samples;
10) Leak tightness tests: reference to informative Annex E for an example of a vacuum test;
unification of the lower test pressure of 0,5 bar for all gases; implementation of internal leak
tightness test at −40 °C; addition of information on required position of the valve operating
mechanism for external leak tightness test; adaption of requirement for test order for all
required test pressures; adaption of requirement for changing and maintaining the different
test temperatures; adaption of requirement for minimum closing torque;
11) Endurance test: addition of requirement to carry out the test with the handwheel in place and
of description of procedure for increasing the endurance torque for some valve designs;
12) Visual examination: addition of separate sub-clause for visual examination with detailed
information on acceptance criteria;
13) Oxygen pressure surge test: information on test installation and test procedure transferred to
normative Annex C; addition of detailed information on determination of pressure rise time;
addition of divergent installation requirements for testing main valves; addition of detailed
information on acceptance criteria;
© ISO 2014 – All rights reserved v

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

14) Acetylene test: information transferred to normative Annex B;
15) Impact test: addition of information on the valving torque according to ISO 13341 to be
used; addition of subsequent hydraulic burst pressure test and internal leak tightness test;
modification of test procedure;
16) Marking: addition of requirement for marking cylinder valves oxygen pressure surge tested via
different connections and of detailed information on marking of valve inlet, valve outlet and
separate valve filling connections;
17) Example of test sequence: information transferred from informative Annex B to informative
Annex D and adaptation according to new requirements for valve designs and changes and
material specifications within a valve design;
18) Addition of informative Annex E, giving an example of a vacuum test;
19) Endurance test equipment and procedure: information transferred from normative Annex C to
normative Annex F.
g) full editorial rework.
vi © ISO 2014 – All rights reserved

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

Introduction
This International Standard covers the function of a cylinder valve as a closure (defined by the UN Model
Regulations). Additional features of cylinder valves (e.g. pressure regulators, residual pressure devices,
non-return devices and pressure relief devices) might be covered by other standards and/or regulations.
Cylinder valves complying with this International Standard can be expected to perform satisfactorily
under normal service conditions.
This International Standard pays particular attention to:
a) suitability of materials;
b) safety (mechanical strength, impact strength, endurance, leak tightness, resistance to ignition,
resistance to acetylene flashback);
c) testing;
d) marking.
This standard has been written to be in conformity with the UN Model Regulations. When published
it will be submitted to the UN Sub Committee 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.
Considering the changes described in the Foreword, when a cylinder valve has been approved according
to the previous version of this International Standard the body responsible for approving the same
cylinder valve to this new edition should consider which tests need to be performed.
In this International Standard the unit bar is used, due to its universal use in the field of technical gases.
It should, however, be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is
5 5 2
Pa (1 bar = 10 Pa = 10 N/m ).
Pressure values given in this International Standard are given as gauge pressure (pressure exceeding
atmospheric pressure) unless noted otherwise.
© ISO 2014 – All rights reserved vii

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SIST EN ISO 10297:2014

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SIST EN ISO 10297:2014
INTERNATIONAL STANDARD ISO 10297:2014(E)
Gas cylinders — Cylinder valves — Specification and type
testing
1 Scope
This International Standard specifies design, type testing and marking requirements for:
a) cylinder valves intended to be fitted to refillable transportable gas cylinders;
b) main valves (excluding ball valves) for cylinder bundles;
c) cylinder valves or main valves with integrated pressure regulator (VIPR);
which convey compressed, liquefied or dissolved gases.
NOTE 1 Where there is no risk of ambiguity, cylinder valves, main valves and VIPR are addressed with the
collective term “valves” within this International Standard.
This International Standard covers the function of a valve as a closure.
This International Standard does not apply to
— valves for cryogenic equipment, portable fire extinguishers and liquefied petroleum gas (LPG), and
— quick-release valves (e.g. for fire-extinguishing, explosion protection and rescue applications), non-
return valves or ball valves.
NOTE 2 Requirements for valves for cryogenic vessels are specified in ISO 21011 and at a regional level e.g. in
EN 1626. Requirements for LPG valves are specified in ISO 14245 or ISO 15995. Requirements for quick-release
valves are specified e.g. in ISO 17871. Requirements for valves for portable fire extinguishers at a regional
level are specified e.g. in EN 3 series. Requirements for non-return valves and ball valves might be specified in
international/regional standards.
NOTE 3 Requirements for manufacturing tests and examinations of valves covered by this International
Standard are given in ISO 14246.
NOTE 4 Additional requirements for VIPR are specified in ISO 22435 for industrial applications or ISO 10524-3
for medical applications. Additional requirements for residual pressure valves with or without a non-return
function are specified in ISO 15996. Additional requirements for pressure-relief devices might be specified in
international/regional regulations/standards.
NOTE 5 Additional specific requirements for valves for breathing apparatus at a regional level are specified
e.g. in EN 144 series. Additional specific requirements for quick-release valves for fixed fire-fighting systems are
specified in ISO 16003 and at a regional level e.g. in EN 12094–4.
2 Normative references
The following referenced 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 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method
ISO 407, Small medical gas cylinders — Pin-index yoke-type valve connections
ISO 10286, Gas cylinders — Terminology
© ISO 2014 – All rights reserved 1

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

ISO 10524-3, Pressure regulators for use with medical gases — Part 3: Pressure regulators integrated with
cylinder valves
ISO 11114-1, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 1:
Metallic materials
ISO 11114-2, Gas cylinders — Compatibility of cylinder and valve materials with gas contents — Part 2:
Non-metallic materials
ISO 11117:2008, Gas cylinders — Valve protection caps and valve guards — Design, construction and tests
ISO 13341, Gas cylinders — Fitting of valves to gas cylinders
ISO 15615:2013, Gas welding equipment — Acetylene manifold systems for welding, cutting and allied
processes — Safety requirements in high-pressure devices
ISO 15996, Gas cylinders — Residual pressure valves — General requirements and type testing
ISO 22435, Gas cylinders — Cylinder valves with integrated pressure regulators — Specification and type
testing
3 Terms, definitions and symbols
For the purposes of this document, the terms and definitions given in ISO 10286, and the following apply.
3.1
valve operating mechanism
mechanism which closes and opens the valve orifice and which includes the internal and external sealing
systems
Note 1 to entry: In ISO 22435 the valve operating mechanism is called shut-off mechanism.
Note 2 to entry: For some VIPR designs the pressure regulating valve can act as the shut-off mechanism.
EXAMPLE A threaded valve spindle which, when rotated, raises and lowers a seal/seat.
3.2
valve design
classification of valves with regard to the valve operating mechanism (3.1)
3.3
valve operating device
component which actuates the valve operating mechanism (3.1)
EXAMPLE Handwheel, key, knob, toggle, lever or actuator.
3.4
external leak tightness
leak tightness to atmosphere (leakage in and/or leakage out) when the valve is open
Note 1 to entry: See Figure 1.
2 © ISO 2014 – All rights reserved

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

p < p p > p
a a
Key
1 valve outlet connection (sealed)
a
Leakage in (vacuum test)
b
Leakage out
p internal pressure
p atmospheric pressure
a
Figure 1 — External leak tightness
3.5
internal leak tightness
leak tightness across the valve seat (leakage in and/or leakage out) when the valve is closed
Note 1 to entry: See Figure 2.
© ISO 2014 – All rights reserved 3

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SIST EN ISO 10297:2014
ISO 10297:2014(E)

p < p p > p
a a
Key
1 valve outlet connection (open)
a
Leakage in (vacuum test).
b
Leakage out.
p internal pressure
p atmospheric pressure
a
Figure 2 — Internal leak tightness
3.6
valve working pressure
p
w
settled pressure of a compressed gas at a uniform reference temperature of 15 °C in a full gas cylinde
...

SLOVENSKI STANDARD
oSIST prEN ISO 10297:2012
01-oktober-2012
Plinske jeklenke - Ventili za jeklenke - Specifikacija in preskus tipa (ISO
10297:2006)
Gas cylinders - Cylinder valves - Specification and type testing (ISO/DIS 10297:2012)
Gasflaschen - Flaschenventile - Spezifikation und Baumusterprüfungen (ISO/DIS
10297:2012)
Bouteilles à gaz - Robinets de bouteilles - Spécifications et essais de type (ISO/DIS
10297:2012)
Ta slovenski standard je istoveten z: prEN ISO 10297 rev
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
oSIST prEN ISO 10297:2012 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 10297:2012

---------------------- Page: 2 ----------------------
oSIST prEN ISO 10297:2012


EUROPEAN STANDARD
DRAFT
prEN ISO 10297 rev
NORME EUROPÉENNE

EUROPÄISCHE NORM

July 2012
ICS 23.060.40 Will supersede EN ISO 10297:2006
English Version
Gas cylinders - Cylinder valves - Specification and type testing
(ISO/DIS 10297:2012)
Bouteilles à gaz - Robinets de bouteilles - Spécifications et Gasflaschen - Flaschenventile - Spezifikation und
essais de type (ISO/DIS 10297:2012) Baumusterprüfungen (ISO/DIS 10297:2012)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 23.

If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.

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.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2012 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 10297 rev:2012: E
worldwide for CEN national Members.

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oSIST prEN ISO 10297:2012
prEN ISO 10297:2012 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 10297:2012
prEN ISO 10297:2012 (E)
Foreword
This document (prEN ISO 10297:2012) 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 document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 10297:2006.
Endorsement notice
The text of ISO/DIS 10297:2012 has been approved by CEN as a prEN ISO 10297:2012 without any
modification.
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oSIST prEN ISO 10297:2012

DRAFT INTERNATIONAL STANDARD ISO/DIS 10297
ISO/TC 58/SC 2 Secretariat: AFNOR
Voting begins on Voting terminates on

2012-07-19 2012-12-19
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION    МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ    ORGANISATION INTERNATIONALE DE NORMALISATION


Gas cylinders — Cylinder valves — Specification and type
testing
Bouteilles à gaz — Robinets de bouteilles — Spécifications et essais de type
[Revision of second edition (ISO 10297:2006)]
ICS 23.020.30; 23.060.40


ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.


To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.



THIS DOCUMENT IS A DRAFT CIRCULATED 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 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 NATIONAL REGULATIONS.
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.
©  International Organization for Standardization, 2012

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ISO/DIS 10297

Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
photocopying, recording or otherwise, without prior written permission being secured.
Requests for permission to reproduce should be addressed to either ISO at the address below or ISO’s
member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Reproduction may be subject to royalty payments or a licensing agreement.
Violators may be prosecuted.

ii © ISO 2012 – All rights reserved

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ISO/DIS 10297
Contents Page
Foreword . v
Introduction . viii
1  Scope . 1
2  Normative references . 1
3  Terms, definitions and symbols . 2
4  Valve design requirements . 5
4.1  General . 5
4.2  Description . 6
4.3  Materials . 6
4.4  Dimensions . 7
4.5  Valve connections . 8
4.6  Mechanical strength . 8
4.7  Valve operating mechanism . 9
4.8  Valve operating device . 14
4.9  Leakage . 14
4.10  Resistance to ignition . 14
5  Type tests . 15
5.1  General . 15
5.2  Documentation . 16
5.3  Test samples . 17
5.4  Test report . 17
5.5  Test temperatures . 17
5.6  Test pressures . 17
5.7  Test gas . 18
5.8  Test sequence . 18
5.9  Ageing. 20
5.10  Hydraulic burst pressure test . 20
5.11  Excessive torque tests. 20
5.12  Leak tightness tests . 21
5.13  Endurance test . 23
5.14  Visual examination . 23
5.15  Flame impingement test . 24
6  Marking . 24
Annex A (normative) Impact test . 25
Annex B (normative) Divergent/additional tests for acetylene valves . 27
B.1  Hydraulic burst pressure test . 27
B.2  Seat leakage test . 27
Annex C (normative) Oxygen pressure surge test . 28
C.1  General . 28
C.2  Test installation requirements . 28
C.3  Test procedure . 31
Annex D (normative) Example of test sequence . 32
Annex E (informative) Example of a vacuum test . 33
Annex F (normative) Endurance test equipment and procedure. 34
F.1  Typical arrangement . 34
F.2  Requirements . 34
F.2.1  Speed and application of torque . 34
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F.2.2  Alignment .35
F.2.3  Verification .35
F.2.4  Stroke of the endurance test .35
F.2.5  Record .35
Annex G (informative) Guidance for updating valve conformity on the basis of the previous
version of this International Standard .36
G.1  General .36
G.2  Procedure .36
G.2.1  Endurance test .36
G.2.2  Leak tightness tests .36
G.2.3  Oxygen pressure surge test .36
G.2.4  Acetylene tests .36
Bibliography .37

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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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
ISO 10297 was prepared by Technical Committee ISO/TC 58, Gas cylinders, Subcommittee SC 2, Cylinder
fittings.
This third edition cancels and replaces the second edition (ISO 10297:2006).
The main technical modifications are the following:
a) Scope: inclusion of cylinder valves with integrated pressure regulators (VIPR), exclusion of quick-release
valves and non-return valves;
b) Terms, definitions and symbols: new definitions added and some definitions adapted, e.g. for leak
tightness and introduction of new definitions, e.g. valve burst test pressure and endurance torque;
c) Valve design requirements:
1) General: inclusion of additional requirement of internal leak tightness at −40 °C during transport and
storage with additional requirement for impact value as material requirement;
2) Materials: deletion of requirements already given in ISO 11114-1 and ISO 11114-2; deletion of
ageing sensitivity test for non-metallic materials; addition of requirement on ductility of valve body
material; addition of requirement on suitability of lubricants for valve test pressure; recommendations
amended and now given as notes;
3) Dimensions: deletion of requirement on bore of the valve with regard to flow requirement and
adaption of requirements for valves fitted with a cap according to ISO 11117;
4) Resistance to mechanical impact: addition of requirement for impact testing valves protected by a
guard complying with ISO 11117 but fixed only to the valve;
5) Valve operating mechanism: inclusion of allowance to increase the endurance torque for some
special valve designs and to adjust compressed packed valves during endurance testing;
replacement of acetylene flashback test by alternative tests without using acetylene and addition of
acetylene decomposition test for main valves of an acetylene bundle;
6) Valve operating device: addition of requirement on the handwheel diameter required to achieve the
minimum closing torque;
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7) Resistance to ignition: for highly oxidizing gases limitation of oxygen pressure surge test for cylinder
valves for gas cylinders having a minimum cylinder test pressure of 30 bar; addition of requirement of
oxygen pressure surge test for gas mixtures containing oxygen or other highly oxidizing gases as
well as for air and of detailed information on acceptance criteria; addition of mandatory reference to
oxygen pressure surge test for VIPR specified in ISO 22435 or ISO 10524-3 and for cylinder valves
with residual pressure valves (RPV) specified in ISO 15996;
d) Production requirements: deletion of all respective requirements but reference to ISO 14246 in scope;
e) Type tests:
1) General: addition of detailed definition of valve family, changes and material variants within a valve
family and of corresponding repetition of tests;
2) Documentation: addition of detailed information on documentation required;
3) Test samples: addition of requirement for preconditioning of test samples by the manufacturer;
4) Test pressures: adaption of information on burst test pressure (former hydraulic test pressure);
5) Test gas: addition of requirement for using helium or hydrogen or an inert mixture of these gases for
the leak tightness tests for cylinder valves for helium and hydrogen and their mixtures; extension of
requirements on gas quality;
6) Test sequence: deletion of leak tightness test before ageing as preconditioning; addition of internal
leak tightness test at -40 °C after endurance test; adaption of oxygen pressure surge test for cylinder
valves with lubricants not rated for valve test pressure; listing of impact test;
7) Hydraulic burst pressure test: additional testing with the valve seat of the test sample in closed
position; adaption of test for valves equipped with actuators;
8) Excessive torque tests: addition of requirement to carry out the test with the handwheel in place;
differentiation between handwheel and key/toggle operated valves; extension of tests with
requirement of 2 more test samples;
9) Leak tightness tests: reference to informative Annex E for an example of a vacuum test; unification of
the lower test pressure of 0,5 bar for all gases; implementation of internal leak tightness test at
−40 °C; addition of information on required position of the valve operating mechanism for external
leak tightness test; adaption of requirement for test order for all required test pressures; adaption of
requirement for changing and maintaining the different test temperatures; adaption of requirement for
minimum closing torque;
10) Endurance test: addition of requirement to carry out the test with the handwheel in place and of
description of procedure for increasing the endurance torque for some special valve designs;
11) Visual examination: addition of separate subclause for visual examination with detailed information
on acceptance criteria;
12) Flame impingement test: addition of detailed information on acceptance criteria; addition of sealing
interface degradation as non-acceptance criterion;
13) Oxygen pressure surge test: information transferred to normative Annex C; addition of requirement
for testing via different connections if they might be subjected to an oxygen pressure surge, for
testing valves for gas mixtures containing oxygen and for previous endurance testing if the lubricants
used are not suitable for the valve test pressure; addition of detailed information on calculation of
pressurization time; addition of divergent installation requirements for testing main valves; addition of
detailed information on acceptance criteria;
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14) Acetylene test: information transferred to normative Annex B; replacement of acetylene flashback
test by alternative tests (hydraulic burst pressure test and seat leakage test) without using acetylene;
15) Impact test: extension of test by using different valving torques according to ISO 13341 and
subsequent hydraulic burst pressure test and internal leak tightness test with requirement of one
additional test sample; addition of detailed information on point of impact; addition of acceptance
criteria of being opened after the test;
16) Marking: addition of requirement for marking valves oxygen pressure surge tested from different
directions; detailed information on marking of inlet and outlet connections;
17) Example of test sequence: information transferred from informative Annex B to informative Annex D
and adaptation according to new requirements for valve families and changes and material
specifications within a valve family;
18) Addition of informative Annex E, giving an example of a vacuum test;
19) Endurance test equipment and procedure: information transferred from normative Annex C to
normative Annex F;
20) Addition of informative Annex H, giving guidance for updating valve conformity on the basis of the
previous version of this International Standard.
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Introduction
Valves complying with this International Standard can be expected to perform satisfactorily under normal
service conditions.
This International Standard pays particular attention to:
a) suitability of materials;
b) safety (mechanical strength, impact strength, endurance, leak tightness, resistance to ignition, resistance
to acetylene flashback);
c) testing;
d) identification.
This International Standard is intended to be used under a variety of national regulatory regimes but has been
written so that it is suitable for use with the conformity assessment system of the UN Model Regulations for
the Transportation of Dangerous Goods. Attention is drawn to requirements in specified relevant national
regulations of the country (countries) where the cylinder valves are intended to be used that might override the
requirements given in this International Standard.
This International Standard and the UN Model Regulations for the Transportation of Dangerous Goods only
covers the main shut-off function of cylinder valves including cylinder valves with integrated pressure regulator
(VIPR). Additional features of a cylinder valve like pressure regulators, residual pressure-retaining devices
and non-return devices and pressure-relief devices might be covered by other standards and regulations.
In International Standards, weight is equivalent to a force, expressed in Newton. However, in common
parlance (as used in terms defined in this International Standard), the word “weight” continues to be used to
mean “mass”, but this practice is deprecated (ISO 80000-4).
In this standard the unit bar is used, due to its universal use in the field of technical gases. It should, however,
be noted that bar is not an SI unit, and that the corresponding SI unit for pressure is Pa.
Pressure values given in this standard are given as gauge pressure (pressure exceeding atmospheric
pressure) unless noted otherwise.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 10297

Gas cylinders — Cylinder valves — Specification and type
testing
1 Scope
This International Standard specifies design, type test methods and marking requirements for cylinder valves
including cylinder valves with integrated pressure regulators (VIPR) intended to be fitted to transportable gas
cylinders or used as a main valve for bundles which convey compressed, liquefied or dissolved gases. Where
cylinder valves are used for pressure drums or trailers this standard may be used as a guide.
This International Standard does not apply to cylinder valves for cryogenic equipment, for portable fire
extinguishers, or for liquefied petroleum gas (LPG) and for quick-release valves and non-return valves.
Additional features of a cylinder valve other than the main shut-off function are also excluded from the scope.
NOTE 1 Requirements for valves for cryogenic vessels are specified in ISO 21011 and on regional level e.g. in
EN 1626. Requirements for valves for portable fire extinguishers on regional level are specified e.g. in EN 3 series.
Requirements for quick-release valves and non-return valves might be specified in regional regulations/standards. For
operational safety when filling and handling cylinders equipped with quick-release valves see EIGA SI 08/CGA SB-39.
NOTE 2 Requirements for manufacturing tests and examinations of cylinder valves and VIPR are given in ISO 14246.
NOTE 3 Additional requirements for VIPR are specified in ISO 22435 or ISO 10524-3. Additional requirements for
residual pressure-retaining devices and non-return devices are specified in ISO 15996. Additional requirements for
pressure-relief devices might be specified in regional regulations/standards.
NOTE 4 Additional specific requirements for cylinder valves for breathing apparatuses on regional level are specified
e.g. in EN 144 series. Additional specific requirements for quick-release valves for fixed firefighting systems on regional
level are specified e.g. in EN 12094-4.
2 Normative references
The following referenced 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,
...

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