SIST EN ISO 15615:2013
(Main)Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - Safety requirements in high-pressure devices (ISO 15615:2013)
Gas welding equipment - Acetylene manifold systems for welding, cutting and allied processes - Safety requirements in high-pressure devices (ISO 15615:2013)
This International Standard establishes the general specifications, requirements and tests for devices located on the high-pressure side of acetylene manifold systems as defined in ISO 14114. It does not cover the high-pressure piping, flexible hoses and the regulator.
Gasschweißgeräte - Acetylenflaschen-Batterieanlagen für Schweißen, Schneiden und verwandte Prozesse - Sicherheitsanforderungen für Hochdruckeinrichtungen (ISO 15615:2013)
Diese Norm legt allgemeine Festlegungen, Anforderungen und Prüfungen für hochdruckseitig liegende
Ausrüstungsteile in Acetylenflaschen-Batterieanlagen nach ISO 14114 fest. Diese Norm behandelt nicht die
Hochdruckleitungen, Schlauchleitungen und den Druckregler.
ANMERKUNG Die Begriffe „anströmseitig“ und „abströmseitig“ beziehen sich auf die normale Gasdurchflussrichtung in
der Einrichtung.
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 15615:2013)
L'ISO 15615:2013 établit les spécifications générales, les exigences et les essais pour les dispositifs utilisés sur le côté haute pression des centrales d'acétylène telles que définies dans l'ISO 14114. Elle ne traite pas des canalisations haute pression, des tuyaux souples et des détendeurs.
Oprema za plamensko varjenje - Baterije acetilenskih jeklenk za varjenje, rezanje in sorodne postopke - Varnostne zahteve za visokotlačne naprave (ISO 15615:2013)
Ta mednarodni standard podaja splošne specifikacije, zahteve in preskuse za naprave, ki se nahajajo na tisti strani baterij acetilenskih jeklenk, kjer je visok tlak, kot je definirano v standardu ISO 14114. Ta standard ne obravnava visokotlačnega ocevja, hidroizolacijskih cevi in regulatorja.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 15615:2013
01-julij-2013
1DGRPHãþD
SIST EN ISO 15615:2003
2SUHPD]DSODPHQVNRYDUMHQMH%DWHULMHDFHWLOHQVNLKMHNOHQN]DYDUMHQMHUH]DQMH
LQVRURGQHSRVWRSNH9DUQRVWQH]DKWHYH]DYLVRNRWODþQHQDSUDYH ,62
Gas welding equipment - Acetylene manifold systems for welding, cutting and allied
processes - Safety requirements in high-pressure devices (ISO 15615:2013)
Gasschweißgeräte - Acetylenflaschen-Batterieanlagen für Schweißen, Schneiden und
verwandte Prozesse - Sicherheitsanforderungen für Hochdruckeinrichtungen (ISO
15615:2013)
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 15615:2013)
Ta slovenski standard je istoveten z: EN ISO 15615:2013
ICS:
25.160.30 Varilna oprema Welding equipment
SIST EN ISO 15615:2013 en,fr
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 15615:2013
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SIST EN ISO 15615:2013
EUROPEAN STANDARD
EN ISO 15615
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2013
ICS 25.160.30 Supersedes 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 15615:2013)
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 (ISO
dispositifs haute pression (ISO 15615:2013) 15615:2013)
This European Standard was approved by CEN on 9 February 2013.
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
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15615:2013: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15615:2013
EN ISO 15615:2013 (E)
Contents Page
Foreword .3
2
---------------------- Page: 4 ----------------------
SIST EN ISO 15615:2013
EN ISO 15615:2013 (E)
Foreword
This document (EN ISO 15615:2013) 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 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 October 2013, and conflicting national standards shall be withdrawn at
the latest by October 2013.
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 15615:2002.
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 15615:2013 has been approved by CEN as EN ISO 15615:2013 without any modification.
3
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SIST EN ISO 15615:2013
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SIST EN ISO 15615:2013
INTERNATIONAL ISO
STANDARD 15615
Second edition
2013-04-15
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
Reference number
ISO 15615:2013(E)
©
ISO 2013
---------------------- Page: 7 ----------------------
SIST EN ISO 15615:2013
ISO 15615:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
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 2013 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 15615:2013
ISO 15615:2013(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design . 2
5 Requirements . 2
5.1 General . 2
5.2 General requirements . 2
5.3 Additional requirements to be met by specific types of device . 3
6 Type tests . 4
6.1 General . 4
6.2 Reference values and accuracy of instruments . 4
6.3 Test gases . 5
6.4 Acetylene decomposition test . 5
6.5 Pressure resistance test . 6
6.6 Non-return valve test . 6
6.7 Endurance test . 7
6.8 Trip pressure test for automatic pressure-actuated shut-off valves . 8
6.9 Internal gas leakage test . 9
7 Manufacturer’s instructions . 9
8 Marking . 9
Annex A (normative) Summary of tests .10
Bibliography .16
© ISO 2013 – All rights reserved iii
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SIST EN ISO 15615:2013
ISO 15615:2013(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.
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), which has been
technically revised.
Requests for official interpretations of any aspect of this International Standard should be directed to
the Secretariat of ISO/TC 44/SC 8 via your national standards body. A complete listing of these bodies
can be found at www.iso.org.
iv © ISO 2013 – All rights reserved
---------------------- Page: 10 ----------------------
SIST EN ISO 15615:2013
INTERNATIONAL STANDARD ISO 15615:2013(E)
Gas welding equipment — Acetylene manifold systems
for welding, cutting and allied processes — Safety
requirements in high-pressure devices
1 Scope
This International Standard establishes the general specifications, requirements and tests for devices
located on the high-pressure side of acetylene manifold systems as defined in ISO 14114. It 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 2503:2009, Gas welding equipment — Pressure regulators and pressure regulators with flow-metering
devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa)
ISO 9090, Gas tightness of equipment for gas welding and allied processes
ISO 9539, Gas welding equipment — Materials for equipment used in gas welding, cutting and allied processes
ISO 10297, Gas cylinders — Cylinder valves — Specification and type testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
non-return valve
device which prevents passage of gas in the direction opposite to flow
[ISO 15296:2004]
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
remotely actuated shut-off valve
quick-acting shut-off valve which quickly stops the gas flow when remotely triggered
© ISO 2013 – All rights reserved 1
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SIST EN ISO 15615:2013
ISO 15615:2013(E)
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
Note 1 to entry: 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]
3.9
pressure gauge
device which shows the actual pressure of the assembly (digital or analogue readouts) (e.g. used in the
high-pressure line of manifold systems or in pressure regulators for manifold systems.)
4 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.
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.
5.2 General requirements
5.2.1 Materials
Materials used for devices shall be in accordance with ISO 9539.
5.2.2 External gas tightness
The general requirements on external gas tightness shall be in accordance with ISO 9090 at all times,
before and after the tests.
2 © ISO 2013 – All rights reserved
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SIST EN ISO 15615:2013
ISO 15615:2013(E)
5.2.3 Internal gas tightness
Where internal gas tightness is required in this International Standard, the leakage rate shall not exceed
3 2
50 cm /h for devices with a connection internal bore (diameter) less than 11 mm, or less than 0,41d for
larger diameters. See 6.9 for test details.
2 3
NOTE The expression 0,41d 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.
5.2.4 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.
5.2.5 Pressure resistance
The housings of the devices shall withstand a pressure of 31,5 MPa (315 bar) for 5 min without any observed
leakage. After pressurization, there shall be no visible permanent deformation. See 6.5 for test details.
5.2.6 Acetylene decomposition
After the device has been tested with decomposition at 2,5 MPa initial pressure 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 device
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
The decomposition test shall be carried out in the open position. Manual quick-acting shut-off valves
shall meet the requirements of 5.2.3 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.
For valves with handwheels, the closing torque applied for the decomposition test shall be the endurance
test torque as defined in the endurance test for cylinder valves in ISO 10297.
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 2,5 MPa (25 bar). After tripping by acetylene decomposition, the internal gas leakage shall
meet the requirements of 5.2.4.
5.3.4 Remotely actuated shut-off valve
Remotely actuated shut-off valves shall be triggered by an acetylene decomposition at 0,6 MPa (6 bar)
and 2,5 MPa (25 bar). Remotely actuated shut-off valves shall meet the requirements of 5.2.3 before the
decomposition test (see 6.4) and after the endurance test. See 6.7 for endurance test details.
© ISO 2013 – All rights reserved 3
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SIST EN ISO 15615:2013
ISO 15615:2013(E)
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 and 0,20 MPa (1,6 bar and 2,0 bar) at
both 0,1 MPa and 2,5 MPa (1 bar and 25 bar) on the high-pressure side. When triggered, the interna
...
SLOVENSKI STANDARD
oSIST prEN ISO 15615:2010
01-oktober-2010
2SUHPD]DSODPHQVNRYDUMHQMH%DWHULMHDFHWLOHQVNLKMHNOHQN]DYDUMHQMHUH]DQMH
LQVRURGQHSRVWRSNH9DUQRVWQH]DKWHYH]DYLVRNRWODþQHQDSUDYH ,62',6
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.
---------------------- Page: 1 ----------------------
oSIST prEN ISO 15615:2010
---------------------- Page: 2 ----------------------
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.
---------------------- Page: 3 ----------------------
oSIST prEN ISO 15615:2010
prEN ISO 15615:2010 (E)
Contents Page
Foreword .3
2
---------------------- Page: 4 ----------------------
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
---------------------- Page: 7 ----------------------
oSIST prEN ISO 15615:2010
ISO/DIS 15615
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©
ii ISO 2010 – All rights reserved
---------------------- Page: 8 ----------------------
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
---------------------- Page: 9 ----------------------
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.
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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.
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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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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.
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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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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
...
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