1、BSI Standards PublicationLPG equipment and accessories Welded steel pressurevessels for LPG road tankers Design and manufactureBS EN 12493:2013+A1:2014BS EN 12493:2013+A1:2014Incorporating corrigendum July 2015BS EN 12493:2013+A1:2014 BRITISH STANDARDNational forewordThis British Standard is the UK
2、implementation of EN 12493:2013+A1:2014, incorporating corrigendum July 2015. It supersedes BS EN 12493:2013 which is withdrawn.The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment.
3、 For example, text altered by CEN amendment A1 is indicated by .The UK participation in its preparation was entrusted to Technical Committee PVE/19, LPG containers and their associated fittings.A list of organizations represented on this committee can be obtained on request to its secretary.This pub
4、lication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015. Published by BSI Standards Limited 2015ISBN 978 0 580 90928 3ICS 23.020.30Compliance with a British Standard cannot confer immun
5、ity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2013.Amendments/corrigenda issued since publicationDate Text affected31 August 2014 Implementation of CEN amendment A1:201431 July 2015 Implementation of C
6、EN corrigendum July 2015: Formula D.11 modifiedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12493:2013+A1 July 2014 ICS 23.020.30 Supersedes EN 12493:2013English Version LPG equipment and accessories - Welded steel pressure vessels for LPG road tankers - Design and manufacture quipements pou
7、r GPL et leurs accessoires - Rservoirs sous pression en acier souds des camions-citernes pour GPL - Conception et construction Flssiggas-Gerte und Ausrstungsteile - Geschweite Druckbehlter aus Stahl fr Straentankwagen fr Flssiggas (LPG) - Auslegung und Herstellung This European Standard was approved
8、 by CEN on 15 August 2013 and includes Amendment 1 approved by CEN on 22 May 2014. 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
9、 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 r
10、esponsibility 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
11、 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 COMIT EUROPEN DE
12、NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12493:2013+A1:2014 EIncorporating corrigendum July 2015Supersedes EN
13、 12493:2013EN 12493:2013+A1:2014 (E) 2 Contents Page Foreword 6 Introduction .7 1 Scope 8 2 Normative references 8 3 Terms and definitions 10 4 Materials 10 4.1 Environmental . 10 4.2 Suitability . 11 4.3 Pressure retaining parts 11 4.4 Non-pressure retaining parts 11 4.5 Welding consumables 11 4.6
14、Non-metallic materials (gaskets) . 11 4.7 Inspection documents for materials . 11 5 Pressure vessel design 12 5.1 Design conditions . 12 5.2 Minimum thickness. 12 5.3 Surge plates 12 5.4 Doubler plates . 13 5.5 Stresses due to motion 13 5.6 Self-supporting pressure vessels . 13 5.7 Vacuum conditions
15、 . 14 5.8 Pressure vessel mountings . 14 5.9 Internal pipework 14 6 Openings . 14 6.1 General . 14 6.2 Reinforcement of openings . 14 6.3 Threaded connections . 15 6.4 Manhole . 15 7 Non-pressure retaining parts 15 7.1 Attachment welds . 15 7.2 Position of attachment welds 15 8 Workmanship and const
16、ruction 15 8.1 General . 15 8.2 Environment 15 8.3 Control of materials 16 8.4 Acceptable weld details . 16 8.5 Heat treatment and forming . 17 8.5.1 Cold forming 17 8.5.2 Hot forming 17 8.5.3 Testing of formed parts 17 8.5.4 Visual examination and control of dimensions . 18 8.5.5 Marking 18 8.6 Wel
17、ding 18 8.6.1 General . 18 8.6.2 Longitudinal welds . 18 8.6.3 Welding procedure specification (WPS) 18 8.6.4 Qualification of WPS 18 BS EN 12493:2013+A1:2014EN 12493:2013+A1:2014 (E) 2 Contents Page Foreword 6 Introduction .7 1 Scope 8 2 Normative references 8 3 Terms and definitions 10 4 Materials
18、 10 4.1 Environmental . 10 4.2 Suitability . 11 4.3 Pressure retaining parts 11 4.4 Non-pressure retaining parts 11 4.5 Welding consumables 11 4.6 Non-metallic materials (gaskets) . 11 4.7 Inspection documents for materials . 11 5 Pressure vessel design 12 5.1 Design conditions . 12 5.2 Minimum thic
19、kness. 12 5.3 Surge plates 12 5.4 Doubler plates . 13 5.5 Stresses due to motion 13 5.6 Self-supporting pressure vessels . 13 5.7 Vacuum conditions . 14 5.8 Pressure vessel mountings . 14 5.9 Internal pipework 14 6 Openings . 14 6.1 General . 14 6.2 Reinforcement of openings . 14 6.3 Threaded connec
20、tions . 15 6.4 Manhole . 15 7 Non-pressure retaining parts 15 7.1 Attachment welds . 15 7.2 Position of attachment welds 15 8 Workmanship and construction 15 8.1 General . 15 8.2 Environment 15 8.3 Control of materials 16 8.4 Acceptable weld details . 16 8.5 Heat treatment and forming . 17 8.5.1 Col
21、d forming 17 8.5.2 Hot forming 17 8.5.3 Testing of formed parts 17 8.5.4 Visual examination and control of dimensions . 18 8.5.5 Marking 18 8.6 Welding 18 8.6.1 General . 18 8.6.2 Longitudinal welds . 18 8.6.3 Welding procedure specification (WPS) 18 8.6.4 Qualification of WPS 18 BS EN 12493:2013+A1
22、:2014EN 12493:2013+A1:2014 (E) 3 8.6.5 Qualification of welders and welding operators 19 8.6.6 Preparation of edges . 19 8.6.7 Attachments and fastenings 19 8.6.8 Preheat 19 8.7 Post-weld heat treatment 19 8.8 Manufacturing tolerances . 20 8.9 Repairs to pressure envelope and direct attachment welds
23、 20 8.9.1 General requirements . 20 8.9.2 Repair of surface imperfections in the parent metal . 20 8.9.3 Repair of weld imperfections . 20 9 Construction and workmanship of internal pipework . 21 10 Manufacturing tests and examinations . 21 10.1 General . 21 10.2 Mechanical testing 21 10.2.1 Product
24、ion test plates . 21 10.2.2 Longitudinal welds 21 10.2.3 Circumferential welds . 21 10.2.4 Mechanical tests 21 10.2.5 Test requirements . 21 10.3 Non-destructive testing 22 10.3.1 General . 22 10.3.2 Internal imperfections . 23 10.3.3 Surface imperfections . 23 10.4 Non-destructive testing for welds
25、 . 23 10.4.1 Radiographic testing . 23 10.4.2 Marking and identification of radiographs 23 10.4.3 Ultrasonic testing 23 10.4.4 Magnetic particle testing 23 10.4.5 Penetrant testing . 24 10.5 Qualification of non-destructive testing personnel . 24 10.6 Visual examination of welds. 24 10.7 Acceptance
26、criteria . 24 10.8 Stress limitation and safety precautions at the hydraulic test . 24 11 External corrosion protection and finishing . 24 11.1 External protection 24 11.2 Finishing operations . 24 12 Marking . 24 13 Records and documentation 25 13.1 Documentation obtained by the manufacturer. 25 13
27、.2 Records prepared by the manufacturer 25 13.3 Retention and supply of documents . 25 Annex A (normative) Guidance on selection of material grades . 26 Annex B (normative) Reference temperatures for design 27 B.1 Introduction 27 B.2 General . 27 B.3 Developed pressure 27 B.4 Filling 27 Annex C (inf
28、ormative) Alternative reference temperatures for design . 28 C.1 Introduction 28 C.2 General . 28 BS EN 12493:2013+A1:2014EN 12493:2013+A1:2014 (E) 4 C.3 Developed pressure . 28 C.4 Filling . 28 Annex D (normative) Design . 29 D.1 Design stresses 29 D.2 Design pressure 29 D.3 Design formulae 29 D.3.
29、1 Cylindrical shell calculation 29 D.3.2 Dished ends . 30 D.3.2.1 Minimum thickness. 30 D.3.2.2 Torispherical end calculation 30 D.3.2.3 Ellipsoidal end calculation . 31 D.3.2.4 Hemispherical ends 32 D.3.2.5 Formulae for calculating . 32 D.3.3 Conical shell calculations 33 D.3.3.1 General requiremen
30、ts . 33 D.3.3.2 Thickness of conical shell . 33 D.3.3.3 Junction between large end of a cone and a cylinder without a knuckle . 34 D.3.3.4 Junction between the small end of a cone and a cylinder . 35 D.4 Nozzle reinforcement . 37 D.5 Nozzle reinforcement by pads or flanges 39 D.6 Nozzle reinforcemen
31、t by branches . 39 Annex E (informative) Example of joints 44 Annex F (normative) Allowable tolerances . 48 F.1 Pressure vessels. 48 F.1.1 External diameter 48 F.1.2 Out of roundness 48 F.1.3 Deviation of straightness . 48 F.1.4 Irregularities in profile 49 F.2 Dished end tolerance . 49 F.2.1 Thickn
32、ess of material . 49 F.2.2 Profile . 49 F.3 Assembly tolerances 51 F.3.1 Middle line alignment . 51 F.3.2 Surface alignment . 51 F.4 Attachments, nozzles and fittings . 51 F.5 Overall length 51 Annex G (normative) Heat treatment 52 G.1 Method of post-weld heat treatment . 52 BS EN 12493:2013+A1:2014
33、EN 12493:2013+A1:2014 (E) 4 C.3 Developed pressure . 28 C.4 Filling . 28 Annex D (normative) Design . 29 D.1 Design stresses 29 D.2 Design pressure 29 D.3 Design formulae 29 D.3.1 Cylindrical shell calculation 29 D.3.2 Dished ends . 30 D.3.2.1 Minimum thickness. 30 D.3.2.2 Torispherical end calculat
34、ion 30 D.3.2.3 Ellipsoidal end calculation . 31 D.3.2.4 Hemispherical ends 32 D.3.2.5 Formulae for calculating . 32 D.3.3 Conical shell calculations 33 D.3.3.1 General requirements . 33 D.3.3.2 Thickness of conical shell . 33 D.3.3.3 Junction between large end of a cone and a cylinder without a knuc
35、kle . 34 D.3.3.4 Junction between the small end of a cone and a cylinder . 35 D.4 Nozzle reinforcement . 37 D.5 Nozzle reinforcement by pads or flanges 39 D.6 Nozzle reinforcement by branches . 39 Annex E (informative) Example of joints 44 Annex F (normative) Allowable tolerances . 48 F.1 Pressure v
36、essels. 48 F.1.1 External diameter 48 F.1.2 Out of roundness 48 F.1.3 Deviation of straightness . 48 F.1.4 Irregularities in profile 49 F.2 Dished end tolerance . 49 F.2.1 Thickness of material . 49 F.2.2 Profile . 49 F.3 Assembly tolerances 51 F.3.1 Middle line alignment . 51 F.3.2 Surface alignmen
37、t . 51 F.4 Attachments, nozzles and fittings . 51 F.5 Overall length 51 Annex G (normative) Heat treatment 52 G.1 Method of post-weld heat treatment . 52 BS EN 12493:2013+A1:2014EN 12493:2013+A1:2014 (E) 5 G.2 Temperature control 52 G.3 Temperature limit 52 G.4 Temperature measurement 52 Annex H (in
38、formative) Typical method for measurement of shell peaking . 53 H.1 Profile gauge 53 H.2 Peaking survey 53 Annex I (normative) Welding imperfections and test specimens 56 I.1 Imperfections . 56 I.2 Test specimens 58 Annex J (informative) Choice of non-destructive test methods for welds . 60 J.1 Inte
39、rnal imperfections . 60 J.2 Surface imperfections . 60 Annex K (normative) Hydraulic pressure test 61 K.1 Temporary fittings . 61 K.2 Pressure gauges 61 K.3 Pressurizing agent 61 K.4 Avoidance of shock . 61 K.5 Applied pressure . 61 Annex L (informative) Environmental checklist . 62 Bibliography 63
40、BS EN 12493:2013+A1:2014EN 12493:2013+A1:2014 (E) 6 Foreword This document (EN 12493:2013+A1:2014) 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
41、national standard, either by publication of an identical text or by endorsement, at the latest by January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of
42、patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes !EN 12493:2013“. This document includes Amendment 1 approved by CEN on 22 May 2014. The start and finish of text introduced or altered by amendment is indicated in
43、the text by 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 10. NOTE These regulations take precedence over any clau
44、se 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:
45、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 thickn
46、ess 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, Belgiu
47、m, 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, Switzerl
48、and, Turkey and the United Kingdom. BS EN 12493:2013+A1:2014EN 12493:2013+A1:2014 (E) 6 Foreword This document (EN 12493:2013+A1:2014) 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 Stan
49、dard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2015, and conflicting national standards shall be withdrawn at the latest by January 2015. 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 12493:2013“. This document includes Amendment 1 approved by CEN on 22 May 2014.
