SIST EN 12493:2013+A2:2018

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Flüssiggas-Geräte und Ausrüstungsteile - Geschweißte Druckbehälter aus Stahl für Straßentankwagen für Flüssiggas (LPG) - Auslegung und HerstellungÉquipements pour GPL et leurs accessoires - Réservoirs sous pression en acier soudés des camions-citernes pour GPL - Conception et constructionLPG equipment and accessories - Welded steel pressure vessels for LPG road tankers - Design and manufacture43.080.10Tovornjaki in priklopnikiTrucks and trailers23.020.32Pressure vesselsICS:Ta slovenski standard je istoveten z:EN 12493:2013+A2:2018SIST EN 12493:2013+A2:2018en,fr,de01-november-2018SIST EN 12493:2013+A2:2018SLOVENSKI
STANDARDSIST EN 12493:2013+A1:2014/AC:2015SIST EN 12493:2013+A1:20141DGRPHãþD



SIST EN 12493:2013+A2:2018



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12493:2013+A2
June
t r s z ICS
t uä r t rä u râ
t uä r t rä u w Supersedes EN
s t v { uã t r s u ªA sã t r s vEnglish Version
LPG equipment and accessories æ Welded steel pressure vessels for LPG road tankers æ Design and manufacture Équipements pour GPL et leurs accessoires æ Rßservoirs sous pression en acier soudßs des camionsæciternes pour GPL æ Conception et construction
FlüssiggasæGeräte und Ausrüstungsteile æ Geschweißte Druckbehälter aus Stahl für Straßentankwagen für This European Standard was approved by CEN on
t t May
t r s v and includes Corrigendum
s issued by CEN on
s July
t r s w and Amendment
t approved by CEN on
t t January
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t v { uã t r s u ªA tã t r s z ESIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 2 Contents Page European foreword . 6 Introduction . 7 1 Scope . 8 2 Normative references . 8 3 Terms and definitions . 10 4 Materials . 11 4.1 Environmental. 11 4.2 Suitability . 11 4.3 Pressure retaining parts . 12 4.4 Non-pressure retaining parts . 12 4.5 Welding consumables . 12 4.6 Non-metallic materials (gaskets) . 12 4.7 Inspection documents for materials . 12 5 Pressure vessel design . 12 5.1 Design conditions . 12 5.2 Minimum thickness . 13 5.3 Surge plates . 13 5.4 Doubler plates . 13 5.5 Stresses due to motion . 14 5.6 Self-supporting pressure vessels. 14 5.7 Vacuum conditions . 14 5.8 Pressure vessel mountings . 14 5.9 Internal pipework . 15 6 Openings . 15 6.1 General . 15 6.2 Reinforcement of openings. 15 6.3 Threaded connections . 15 6.4 Manhole . 15 7 Non-pressure retaining parts . 16 7.1 Attachment welds . 16 7.2 Position of attachment welds . 16 8 Workmanship and construction . 16 8.1 General . 16 8.2 Environment . 16 8.3 Control of materials. 16 8.4 Acceptable weld details . 17 8.5 Heat treatment and forming . 17 8.5.1 Cold forming . 17 8.5.2 Hot forming . 18 8.5.3 Testing of formed parts . 18 8.5.4 Visual examination and control of dimensions . 19 8.5.5 Marking . 19 8.6 Welding . 19 SIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 3 8.6.1 General . 19 8.6.2 Longitudinal welds . 19 8.6.3 Welding procedure specification (WPS) . 19 8.6.4 Qualification of WPS . 19 8.6.5 Qualification of welders and welding operators . 19 8.6.6 Preparation of edges . 20 8.6.7 Attachments and fastenings . 20 8.6.8 Preheat . 20 8.7 Post-weld heat treatment . 20 8.8 Manufacturing tolerances. 21 8.9 Repairs to pressure envelope and direct attachment welds . 21 8.9.1 General requirements . 21 8.9.2 Repair of surface imperfections in the parent metal . 21 8.9.3 Repair of weld imperfections . 21 9 Construction and workmanship of internal pipework . 21 10 Manufacturing tests and examinations . 21 10.1 General . 21 10.2 Mechanical testing . 22 10.2.1 Production test plates . 22 10.2.2 Longitudinal welds . 22 10.2.3 Circumferential welds . 22 10.2.4 Mechanical tests . 22 10.2.5 Test requirements . 22 10.3 Non-destructive testing . 23 10.3.1 General . 23 10.3.2 Internal imperfections . 23 10.3.3 Surface imperfections . 23 10.4 Non-destructive testing for welds . 24 10.4.1 Radiographic testing . 24 10.4.2 Marking and identification of radiographs . 24 10.4.3 Ultrasonic testing . 24 10.4.4 Magnetic particle testing. 24 10.4.5 Penetrant testing . 24 10.5 Qualification of non-destructive testing personnel . 24 10.6 Visual examination of welds . 25 10.7 Acceptance criteria . 25 10.8 #Safety precautions at the hydraulic test$ . 25 11 External corrosion protection and finishing . 25 11.1 External protection . 25 11.2 Finishing operations . 25 12 Marking . 25 13 Records and documentation . 25 13.1 Documentation obtained by the manufacturer . 25 13.2 Records prepared by the manufacturer . 26 13.3 Retention and supply of documents . 26 Annex A (normative)
Guidance on selection of material grades . 27 Annex B (normative)
Reference temperatures for design . 28 B.1 Introduction. 28 B.2 General . 28 B.3 Developed pressure . 28 SIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 4 B.4 Filling . 28 Annex C (informative)
Alternative reference temperatures for design . 29 C.1 Introduction . 29 C.2 General . 29 C.3 Developed pressure . 29 C.4 Filling . 29 Annex D (normative)
Design . 30 D.1 Design stresses . 30 D.2 Design pressure . 30 D.3 Design formulae . 30 D.3.1 Cylindrical shell calculation . 30 D.3.2 Dished ends . 31 D.3.3 Conical shell calculations . 34 D.4 Nozzle reinforcement . 38 D.5 Nozzle reinforcement by pads or flanges . 40 D.6 Nozzle reinforcement by branches . 40 Annex E (informative)
Example of joints . 45 Annex F (normative)
Allowable tolerances . 49 F.1 Pressure vessels . 49 F.1.1 External diameter . 49 F.1.2 Out of roundness . 49 F.1.3 Deviation of straightness. 49 F.1.4 Irregularities in profile . 49 F.2 Dished end tolerance . 50 F.2.1 Thickness of material . 50 F.2.2 Profile . 50 F.3 Assembly tolerances . 52 F.3.1 Middle line alignment . 52 F.3.2 Surface alignment . 52 F.4 Attachments, nozzles and fittings . 52 F.5 Overall length . 53 Annex G (normative)
Heat treatment . 54 G.1 Method of post-weld heat treatment . 54 G.2 Temperature control . 54 G.3 Temperature limit . 54 G.4 Temperature measurement . 54 Annex H (informative)
Typical method for measurement of shell peaking . 55 H.1 Profile gauge . 55 H.2 Peaking survey . 55 Annex I (normative)
Welding imperfections and test specimens . 58 I.1 Imperfections . 58 I.2 Test specimens . 61 Annex J (informative)
Choice of non-destructive test methods for welds . 63 J.1 Internal imperfections . 63 J.2 Surface imperfections . 63 Annex K (normative)
Hydraulic pressure test . 64 K.1 Temporary fittings . 64 K.2 Pressure gauges . 64 K.3 Pressurizing agent . 64 SIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 5 K.4 Avoidance of shock . 64 K.5 Applied pressure . 64 Bibliography . 66
SIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 6 European foreword This document (EN 12493:2013+A2:2018) has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and accessories”, the secretariat of which is held by NSAI. 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 December 2018, and conflicting national standards shall be withdrawn at the latest by December 2018. 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 includes Amendment 1 approved by CEN on 22 May 2014, Corrigendum 1 issued by CEN on 1 July 2015 and Amendment 2 approved by CEN on 22 January 2018. This document supersedes #EN 12493:2013+A1:2014$. The start and finish of text introduced or altered by amendment is indicated in the text by tags !" and #$. The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicated by the tags ˜™. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard has been submitted for reference into the technical annexes of the ADR #[12]$. NOTE These regulations take precedence over any clause of this European Standard. It is emphasised that RID/ADR/ADN are being revised regularly at intervals of two years which may lead to temporary non-compliances with the clauses of this European Standard. The following main changes have been introduced during the revision of EN 12493:2008+A1:2012: — revision of the shell thickness calculations to avoid any confusion with ADR design pressures; — revision of the hydraulic test pressure to avoid any confusion with ADR hydraulic test pressures and to reduce the maximum tensile stress (at the time of the hydraulic test); — the addition of minimum thickness calculations; — clarification of the surge plate requirements; — references to Annex C (normative) changed to informative. 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, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12493:2013+A2:2018



EN 12493:2013+A2:2018 (E) 7 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health and/or the environment if adequate precautions are not taken. It refers only to technical suitability: it does not absolve the user from their legal obligations at any stage. #Protection of the environment is a key political issue in Europe and elsewhere, for CEN/TC 286 this is covered in CEN/TS 16765 [7] LPG equipment and accessories — Environmental considerations for CEN/TC 286 standards, and this Technical Specification should be read in conjunction with this standard. This Technical Specification provides guidance on the environmental aspects to be considered regarding equipment and accessories produced for the LPG industry and the following is addressed: a) design; b) manufacture; c) packaging; d) use and operation; e) disposal.$ It is recommended that manufacturers develop an environmental management policy. For guidance, see
EN ISO 14000 series (#see [8], [9] and [10]$). Provisions need to be restricted to a general guidance. Limit values are specified in national laws. It has been assumed in the drafting of this European Standard that the execution of its provisions is entrusted to appropriately qualified and experienced people. All pressures are gauged unless otherwise stated. NOTE This European
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