LPGequipment and accessories-Welded steelpressurevesselsforLPGroad tankers-Designandmanufacture
Nationalforeword
supersedes BS EN 12493:2013A2:2018 which is withdrawn. This British Standard is the UK implementation of EN 12493:2020. It
The UK participation in its preparation was entrusted to TechnicalCommittee PVE/19 LPG containers and their associated fittings.
A list of organizations represented on this mittee can be obtained onrequest to its mittee manager.
of a contract. Users are responsible for its correct application. This publication does not purport to include all the necessary provisions
@ The British Standards Institution 2020Published by BSI Standards Limited 2020
ISBN 978 0 539 02393 0
ICS 23.020.35
Compliance with a British Standard cannot confer immunity fromlegal obligations.
This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2020.
Amendments/corrigenda issued since publication
Date
Text affected
EN12493
English Version
LPG equipment and accessories-Welded steelpressure vesselsforLPGroad tankers-Design and manufacture
Reservoirs sous pression en acier soudées des camions - Equipements pour GPL et leurs accessoires -Conception et construction
Flussigas-Gerite und Ausrustungsteile - Geschweifte Druckbehalter aus Stahl fur StraBentankwagen firFlussiggas (LPG) - Auslegung und Herstellung
This European Standard was approved by CEN on 16 November 2020.
s u aop suop a sends pm suoemag euau aan/ a m duo o punoq aue saqa 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 CENmember.
q apeu aenue ao Aue u uosan v (ueuua qpua qsug) suosas ego au u ssx puepus ueadoung stranslation under the responsibility of a CEN member into its own language and notifed 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 Frane Gemany Grce Hngary eland reland Italy Latvia Lithania Lxemourg Malta thelands rway Poland Portugal Republic of North Macedonia Romania erbia Slovakia Slovenia Spain Sweden Switzerland Turkey andUnited Kingdom.
EUROPEAN COMMITEE FOR STANDARDIZATIONCOMITE EUROPEEN DE NORMALISATION EUROPAISCHES KOMITEE FOR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23 B-1040 Brussels
Contents
European foreword.Introduction. .5 41 Scope.. .62 Normative references... ..63 Terms and definitions.4 Materials.. .94.1 4.2 Suitability. Environmental. ..9 .94.3 Pressure retaining parts.. .94.5 4.4 Non-pressure retaining parts. Welding consumables... .94.6 Non-metallic materials (gaskets) 104.7 Inspection documents for materials 105 5.1 Pressure vessel design.. Design conditions... 10 105.3 5.2 Minimum thickness. 105.4 Surge plates. Doubler plates. 11 125.5 5.6 Self-supporting pressure vessels. Stresses due to motion.... 12 125.7 Vacuum conditions. 125.9 5.8 Pressure vessel mountings.. Internal pipework. 13 126 Openings.. 136.1 General. 136.2 6.3 Reinforcement of openings.. Threaded connections. 13 136.4 Manhole. 137.1 7 Non-pressure retaining parts. Attachment welds. 14 147.2 Position of attachment welds 148 Workmanship and construction. 148.1 8.2 Environment. General... 14 148.3 Control of materials. 148.5 8.4 Acceptable weld details. Heat treatment and forming 15 158.6 Welding... 178.7 Repairs to pressure envelope and direct attachment welds.9 Manufacturing tests and examinations. Construction and workmanship of internal pipework .1910.1 10 General. 19 1910.2 Mechanical testing. 20
10.3 10.4 Non-destructive testing. Non-destructive testing for welds 21 2110.5 Qualification of non-destructive testing personnel. Visual examination of welds .2210.6 10.7 Acceptance criteria. 22 2310.8 Safety precautions at the hydraulic test. ...2311 External corrosion protection and finishing. External protection... 23 .2311.2 11.1 Finishing operations. 2312 Marking.. ...2313 Records and documentation. .2313.1 13.2 Records prepared by the manufacturer... Documentation obtained by the manufacturer.. 2313.3 Retention and supply of documents. ...24Annex A (normative) Guidance on selection of materials grades 25Annex B (normative) Reference temperatures for design.. ..26Annex C (informative) Alternative reference temperatures for design . ..27Annex D (normative) Design... ..28Annex E (informative) Example of joints . ...43Annex F (normative) Allowable tolerances. ...47Annex G(normative) Heat treatment.. ...52 .53Annex I (informative) Choice of non-destructive test methods for welds . ...56Annex J (normative) Hydraulic pressure test. ...57Bibliography. ...58
