LPG equipment and accessories - Welded steel pressure vessels for LPG road tankers - Design and manufacture

This European Standard specifies minimum requirements for materials, design, construction and workmanship procedures, and tests for welded LPG road tanker pressure vessels and their welded attachments manufactured from carbon, carbon/manganese and micro alloy steels. There is no upper size limit as this is determined by the gross vehicle weight limitation. This European Standard does not cover pressure vessels for pressure vessel containers.

Flüssiggas-Geräte und Ausrüstungsteile - Geschweißte Druckbehälter aus Stahl für Straßentankwagen für Flüssiggas (LPG) - Auslegung und Herstellung

Diese Europäische Norm legt Mindestanforderungen an Werkstoffe, Auslegung, Bau und Ausführungsverfahren sowie Prüfungen für geschweißte Druckbehälter für Straßentankwagen für Flüssiggas (LPG, en: liquefied petroleum gas) und deren angeschweißtes Zubehör fest, die aus Kohlenstoffstahl, Kohlenstoff Manganstahl und mikrolegiertem Stahl hergestellt werden.
Es besteht keine Obergrenze für die Größe, da diese durch die Begrenzung der Bruttomasse des Fahrzeuges festgelegt wird.
Diese Europäische Norm gilt nicht für Druckbehälter für Tankcontainer.
ANMERKUNG 1   Im Sinne dieser Norm ist der Begriff „Straßentankwagen“ entsprechend der Definition im ADR als „fest verbundene Tanks“ und „Aufsetztanks“ zu verstehen.
ANMERKUNG 2   Die Ausrüstung der Druckbehälter sowie die Inspektion und Prüfung nach dem Zusammenbau ist durch EN 12252 bzw. EN 14334 abgedeckt.
ANMERKUNG 3   Das Baumuster des Straßentankwagens unterliegt entsprechend der Anforderung des ADR einer Zulassung durch die zuständige Behörde.

Équipements pour GPL et leurs accessoires - Réservoirs sous pression en acier soudés des camions-citernes pour GPL - Conception et construction

La présente Norme européenne spécifie les exigences minimales relatives aux matériaux, à la conception, à la construction et à la qualité d’exécution, ainsi que les essais des réservoirs sous pression soudés de camions-citernes utilisés pour le transport du GPL et de leurs accessoires soudés fabriqués en acier au carbone, en acier au carbone/manganèse et en acier micro-allié.
La présente norme ne définit pas de taille limite supérieure pour le réservoir étant donné que celle-ci sera déterminée par la limite du poids total en charge du véhicule.
La présente Norme européenne ne couvre pas les réservoirs sous pression destinés à des conteneurs-citernes.
NOTE 1   Dans le cadre de la présente norme, le terme « camion-citerne » signifie « réservoirs fixes » et « réservoirs démontables » comme définis dans l'ADR.
NOTE 2   L'équipement des camions-citernes et leurs contrôles et essais après construction sont couverts respectivement par les normes EN 12252 et EN 14334.
NOTE 3   Le mode de conception du camion-citerne est sujet à l'approbation de l'autorité compétente comme prévu dans l'ADR.

Oprema in pribor za utekočinjeni naftni plin (UNP) - Varjene jeklene tlačne posode cestnih cistern za utekočinjeni naftni plin (UNP) - Konstruiranje in izdelava

Ta evropski standard določa minimalne zahteve za materiale, načrtovanje, konstrukcijo in postopke izvedbe ter preskuse za varjene tlačne posode za utekočinjen naftni plin (LPG) za cestne cisterne in njihove varjene priključke, izdelane iz ogljikovega, ogljikovega/manganovega in mikro legiranega jekla. Zgornje omejitve velikosti ni, ker je ta določena z omejitvijo bruto teže vozila. Ta evropski standard se ne uporablja za tlačne posode za zabojnike s tlačno posodo.

General Information

Status
Withdrawn
Publication Date
02-Sep-2014
Withdrawal Date
16-Oct-2018
Technical Committee
Current Stage
9900 - Withdrawal (Adopted Project)
Start Date
05-Oct-2018
Due Date
28-Oct-2018
Completion Date
17-Oct-2018

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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 trailers23.020.30MHNOHQNHPressure vessels, gas cylindersICS:Ta slovenski standard je istoveten z:EN 12493:2013+A1:2014SIST EN 12493:2013+A1:2014en,fr,de01-oktober-2014SIST EN 12493:2013+A1:2014SLOVENSKI
STANDARD



SIST EN 12493:2013+A1:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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
Équipements pour GPL et leurs accessoires - Réservoirs sous pression en acier soudés des camions-citernes pour GPL - Conception et construction
Flüssiggas-Geräte und Ausrüstungsteile - Geschweißte Druckbehälter aus Stahl für Straßentankwagen für Flüssiggas (LPG) - Auslegung und Herstellung This European Standard was approved 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 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
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 ESIST EN 12493:2013+A1:2014



EN 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 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 . 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 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 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 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 SIST EN 12493:2013+A1:2014



EN 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 . 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 Production 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 . 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 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 13.2 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 (informative)
Alternative reference temperatures for design . 28 C.1 Introduction . 28 C.2 General . 28 SIST EN 12493:2013+A1:2014



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 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 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 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 reinforcement 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 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 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 SIST EN 12493:2013+A1:2014



EN 12493:2013+A1:2014 (E) 5 G.2 Temperature control . 52 G.3 Temperature limit . 52 G.4 Temperature measurement . 52 Annex H (informative)
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 Internal 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
SIST EN 12493:2013+A1:2014



EN 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 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. The start and finish of text introduced or altered by amendment is indicated in 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 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 12493:2013+A1:2014



EN 12493:2013+A1:2014 (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 around the world. Protection of the environment in this document is understood in a very broad sense. The phrase is used, for example, in relation to the total life-cycle aspects of a product on the environment, including expenditure of energy, and during all phases of its existence, from mining of raw materials, to fabrication, packaging, distribution, use, scrapping, recycling of materials, etc. Annex L comprises an environmental checklist which highlights the clauses of this European Standard that address environmental aspects. It is recommended that manufacturers develop an environmental management policy. For guidance, see
EN ISO 14000 series (see [6], [7] and [8]). Provisions need to be restricted to a general guidance. Limit values are specified in national laws. It has been assumed in the drafting of
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