SIST EN ISO 22435:2009

SLOVENSKI STANDARD
01-april-2009
Plinske jeklenke - Ventili za jeklenke z vgrajenim regulatorjem tlaka - Specifikacija
in preskušanje tipa (ISO 22435:2007)
Gas cylinders - Cylinder valves with integrated pressure regulators - Specification and
type testing (ISO 22435:2007)
Gasflaschen - Druckminderer in Flaschenventilen - Allgemeine Anforderungen und
Baumusterprüfung (ISO 22435:2007)
Bouteilles à gaz - Robinets de bouteilles avec détendeur intégré - Spécifications et
essais de type (ISO 22435:2007)
Ta slovenski standard je istoveten z: EN ISO 22435:2007
ICS:
23.020.30 7ODþQHSRVRGHSOLQVNH Pressure vessels, gas
MHNOHQNH cylinders
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 22435
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2007
ICS 23.020.30
English Version
Gas cylinders - Cylinder valves with integrated pressure
regulators - Specification and type testing (ISO 22435:2007)
Bouteilles à gaz - Robinets de bouteilles avec détendeur Gasflaschen - Druckminderer in Flaschenventilen -
intégré - Spécifications et essais de type (ISO 22435:2007) Allgemeine Anforderungen und Typprüfung (ISO
22435:2007)
This European Standard was approved by CEN on 6 July 2007.
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 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 Management Centre has the same status as the
official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 22435:2007: E
worldwide for CEN national Members.

Contents Page
Foreword.3

Foreword
This document (EN ISO 22435:2007) 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 March 2008, and conflicting national standards shall be withdrawn at
the latest by March 2008.
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, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
Endorsement notice
The text of ISO 22435:2007 has been approved by CEN as a EN ISO 22435:2007 without any modification.

INTERNATIONAL ISO
STANDARD 22435
First edition
2007-09-01
Gas cylinders — Cylinder valves with
integrated pressure regulators —
Specification and type testing
Bouteilles à gaz — Robinets de bouteilles avec détendeur intégré —
Spécifications et essais de type

Reference number
ISO 22435:2007(E)
©
ISO 2007
ISO 22435:2007(E)
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ii © ISO 2007 – All rights reserved

ISO 22435:2007(E)
Contents Page
Foreword. v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Symbols and terminology. 4
5 Design requirements . 4
5.1 General. 4
5.2 Description . 5
5.3 Materials . 5
5.4 Pressure indicators . 6
5.5 Filling connection . 6
5.6 Cylinder connection . 6
5.7 Outlet connection . 6
5.8 Outlet pressure for acetylene . 7
5.9 Flow control valve (flow controller) . 7
5.10 Pressure adjusting device . 7
5.11 Filtration. 7
5.12 Main shut-off valve . 7
5.13 Flow and pressure performance for regulators without flow metering devices. 7
5.14 Pressure relief valve. 8
5.15 Leakage. 8
5.16 Mechanical strength . 8
5.17 Resistance to ignition. 9
5.18 Requirement for VIPR with flow metering devices. 9
5.19 Constructional requirements. 9
5.20 Valve operating device. 9
6 Test methods. 10
6.1 General. 10
6.2 Documentation. 11
6.3 Number of test samples . 11
6.4 Test sequence . 12
6.5 Test method for mechanical strength. 13
6.6 Test methods for flow and pressure performance for regulators without flow metering
devices. 13
6.7 Test method for relief valve . 21
6.8 Pressure retention of the low-pressure side of the pressure regulator. 21
6.9 Test method for flowmeter mechanical strength . 22
6.10 Test method for accuracy of VIPR with flowmeter. 22
6.11 Test method for accuracy of VIPR with flowmeter and with fixed orifices. 22
6.12 Test methods for leakage . 22
6.13 Test method for operating and loosening torques . 23
6.14 Test method for endurance of the main shut-off mechanism. 23
6.15 Test method for endurance of the non-return valve . 25
6.16 Test method for ignition. 25
6.17 Test method for resistance to acetylene decomposition . 26
6.18 Test method for flame resistance of the valve operating device. 26
7 Marking . 29
ISO 22435:2007(E)
8 Instructions. 29
Annex A (normative) Valve impact test. 30
Annex B (informative) Endurance test . 32
Bibliography . 36

iv © ISO 2007 – All rights reserved

ISO 22435:2007(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 Elec
...