SIST EN ISO 15615:2013

SLOVENSKI STANDARD
oSIST prEN ISO 15615:2010
01-oktober-2010
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Gas welding equipment - Acetylene manifold systems for welding, cutting and allied
processes - Safety requirements in high-pressure devices (ISO/DIS 15615:2010)
Gasschweißgeräte - Acetylenflaschen-Batterieanlagen für Schweißen, Schneiden und
verwandte Prozesse - Sicherheitsanforderungen für Hochdruckeinrichtungen (ISO/DIS
15615:2010)
Matériel de soudage aux gaz - Centrales de détente pour la distribution d'acétylène pour
le soudage, le coupage et les techniques connexes - Exigences de sécurité pour les
dispositifs haute pression (ISO/DIS 15615:2010)
Ta slovenski standard je istoveten z: prEN ISO 15615
ICS:
25.160.30 Varilna oprema Welding equipment
oSIST prEN ISO 15615:2010 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 15615:2010

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oSIST prEN ISO 15615:2010


EUROPEAN STANDARD
DRAFT
prEN ISO 15615
NORME EUROPÉENNE

EUROPÄISCHE NORM

August 2010
ICS 25.160.30 Will supersede EN ISO 15615:2002
English Version
Gas welding equipment - Acetylene manifold systems for
welding, cutting and allied processes - Safety requirements in
high-pressure devices (ISO/DIS 15615:2010)
Matériel de soudage aux gaz - Centrales de détente pour la Gasschweißgeräte - Acetylenflaschen-Batterieanlagen für
distribution d'acétylène pour le soudage, le coupage et les Schweißen, Schneiden und verwandte Prozesse -
techniques connexes - Exigences de sécurité pour les Sicherheitsanforderungen für Hochdruckeinrichtungen
dispositifs haute pression (ISO/DIS 15615:2010) (ISO/DIS 15615:2010)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 121.

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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland 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
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 15615:2010: E
worldwide for CEN national Members.

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oSIST prEN ISO 15615:2010
prEN ISO 15615:2010 (E)
Contents Page
Foreword .3

2

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oSIST prEN ISO 15615:2010
prEN ISO 15615:2010 (E)
Foreword
This document (prEN ISO 15615:2010) has been prepared by Technical Committee ISO/TC 44 "Welding and
allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding” the secretariat of which is
held by DIN.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 15615:2002.
Endorsement notice
The text of ISO/DIS 15615:2010 has been approved by CEN as a prEN ISO 15615:2010 without any
modification.

3

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oSIST prEN ISO 15615:2010

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oSIST prEN ISO 15615:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 15615
ISO/TC 44/SC 8 Secretariat: DIN
Voting begins on: Voting terminates on:
2010-08-05 2011-01-05
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Gas welding equipment — Acetylene manifold systems for
welding, cutting and allied processes — Safety requirements in
high-pressure devices
Matériel de soudage aux gaz — Centrales de détente pour la distribution d'acétylène pour le soudage, le
coupage et les techniques connexes — Exigences de sécurité pour les dispositifs haute pression
[Revision of first edition (ISO 15615:2002)]
ICS 25.160.30

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, 2010

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
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©
ii ISO 2010 – All rights reserved

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
Contents Page
Foreword .iv
Introduction.iv
1 Scope.1
2 Normative references.1
3 Terms and definitions .1
4 Design and materials .2
4.1 Design.2
4.2 Materials.2
5 Requirements.2
5.1 General.2
5.2 General requirements.3
5.3 Additional requirements to be met by specific types of devices .3
6 Type tests.4
6.1 General.4
6.2 Reference values and accuracy of instruments.4
6.3 Test gases.4
6.4 Acetylene decomposition test .5
6.5 Pressure resistance test.7
6.6 Non-return valve test.7
6.7 Endurance test.9
6.8 Trip pressure test for automatic pressure actuated shut-off valve .9
6.9 Internal gas leakage test.10
6.10 Trip test for automatic quick acting shut-off device.10
7 Manufacturer's instructions.10
8 Marking.10
Annex A (normative) Summary of tests .12

© ISO 2010 – All rights reserved iii

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
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 15615 was prepared by Technical Committee ISO/TC 44, Welding and allied processes, Subcommittee
SC 8, Equipment for gas welding, cutting and allied processes.
This second edition cancels and replaces the first edition (ISO 15615:2002-05), which has been technically
revised.
iv © ISO 2010 – All rights reserved

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
Introduction
Requests for official interpretations of any aspect of this standard should be directed to the Secretariat of
ISO/TC 44/SC 8 via your national standards body, a complete listing which can be found at www.iso.org.
© ISO 2010 – All rights reserved v

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oSIST prEN ISO 15615:2010

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oSIST prEN ISO 15615:2010
DRAFT INTERNATIONAL STANDARD ISO/DIS 15615

Gas welding equipment — Acetylene manifold systems for
welding, cutting and allied processes — Safety requirements in
high-pressure devices
1 Scope
This standard lays down the general specifications, requirements and tests of devices located on the high-
pressure side of acetylene manifold systems as defined in ISO 14114. The standard does not cover the high-
pressure piping, flexible hoses and the regulator.
NOTE The terms "upstream" and "downstream" refer to the normal direction of gas flow in the device.
2 Normative references
The following referenced documents are indispensable for the application 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 9090, Gas tightness of equipment for gas welding and allied processes
ISO 9539, Materials for equipment used in gas welding, cutting and allied processes
ISO 2503:1998, Gas welding equipment — Pressure regulators for gas cylinders used in welding, cutting and
allied processes up to 300 bar
ISO 7291, Gas welding equipment — Pressure regulators for manifold systems used in welding, cutting and
allied processes up to 300 bar
ISO 10297, Transportable gas cylinders — Cylinder valves — Specification and type testing
ISO 14114, Gas welding equipment — Acetylene manifold systems for welding, cutting and allied processes
— General requirements
ISO 15296:2004, Gas welding equipment — Vocabulary — Terms used for gas welding equipment
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 15296:2004 and the following apply.
3.1
non-return valve
device which prevents passage of gas in the direction opposite to flow
[ISO 15296:2004]
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oSIST prEN ISO 15615:2010
ISO/DIS 15615
3.2
manual quick acting shut-off valve
manually activated device to quickly stop the gas flow
[ISO 15296:2004]
3.3
automatic quick acting shut-off device
self-acting device which closes quickly e.g. when triggered by an acetylene explosion in the high pressure
manifold pipework
[ISO 15296:2004]
3.4
remote actuated shut-off valve
quick acting shut-off valve which quickly stops the gas flow when remotely triggered
3.5
automatic pressure actuated shut-off valve
device which automatically stops the gas supply to the regulator when the downstream pressure rises above
the maximum operating pressure
3.6
three way valve
device which allows gas flow from one side of the high pressure manifold to enter the regulator while isolating
flow from the second side. Its position can be reversed so that gas flows from the second side while the first
side is isolated. It prevents simultaneous flow from both sides
3.7
stop valve
device to prevent, when closed, the flow of gas
3.8
multifunctional safety device
device which incorporates two or more of the safety functions
[ISO 15296:2004]
4 Design and materials
4.1 Design
Components within the devices should be designed to remain at the same electrostatic potential as the body
of the device during operation. All metal components in contact with gas should be electrically continuous to
prevent static electricity discharges.
4.2 Materials
Materials used for devices shall be in accordance with ISO 9539.
5 Requirements
5.1 General
The general requirements (see 5.2) apply to all the devices defined in clause 3. The multifunctional safety
devices shall meet the general and additional requirements corresponding to each function.
2 © ISO 2010 – All rights reserved

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
5.2 General requirements
5.2.1 External gas tightness
The general requirements on external gas tightness before acetylene decomposition shall be in accordance
with ISO 9090.
5.2.2 Internal gas tightness
3
Where internal gas tightness is required in this standard the leakage rate shall not exceed 50 cm /h for
2
devices with a connection internal bore (diameter) less than 11 mm or 0,41 d for larger diameters. See 6.9 for
test details.
3
2
The relationship 0,41 d gives the value of the flow in cm /h when d is the internal bore (diameter) in mm of the
largest connection in the device.
5.2.3 Internal gas tightness after decomposition test
Where internal gas tightness is required after acetylene decomposition the leakage rate shall not exceed 50
l/h. See 6.9 for test details.
5.2.4 Pressure resistance
The housings of the devices shall withstand a pressure of 31,5 MPa (315 bar) for 5 min, without any leakage
observation. After pressurisation there shall be no permanent deformation. See 6.5 for test details.
5.2.5 Acetylene decomposition
After the device has been tested in accordance with 6.4, there shall be no visible permanent deformation of
the device. No escape of gas shall occur during the test. Destruction of inner parts is permitted.
5.3 Additional requirements to be met by specific types of devices
5.3.1 Non-return valve
3
Non-return valves shall not allow the reverse flow of gas greater than 150 cm /h (0,15 l/h) when tested in
accordance with 6.6.1 and 6.6.2, both before and after the 2 000 cycle fatigue test (see 6.6.3).
This requirement does not apply to the non-return valve after it has been subjected to the acetylene
decomposition test.
5.3.2 Manual quick acting shut-off valve
Manual quick acting shut-off valves shall meet the requirements of 5.2.2 before and after the endurance test
(see 6.7). In the case of turn acting valves, they shall not require more than half of a turn to close. See 6.7 for
endurance test details.

5.3.3 Automatic quick acting shut-off device
Automatic quick acting shut-off devices shall be triggered by an acetylene decomposition at 0,6 MPa (6 bar)
and at 2,5 MPa (25 bar). After tripping the internal gas leakage shall meet the requirement of 5.2.3. See 6.10
for test details.
5.3.4 Remote actuated shut-off valve
Remote actuated shut-off valves shall meet the requirements of 5.2.2 before the decomposition test (see 6.4)
and after the endurance test. See 6.7 for endurance test details.

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oSIST prEN ISO 15615:2010
ISO/DIS 15615
5.3.5 Automatic pressure actuated shut-off valve
Automatic pressure actuated shut-off valves shall be triggered (stop gas flow on high pressure side) at a
pressure on the low pressure signal port between 0,16 MPa to 0,20 MPa (1,6 bar to 2,0 bar) at both 0,1 MPa
and 2,5 MPa (1 bar a
...