DIN EN 12807-2009 LPG equipment and accessories - Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) - Design and construction English version of DIN.pdf

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1、September 2009DEUTSCHE NORM English price group 14No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 23.020.30!$Yl“154738

2、8www.din.deDDIN EN 12807LPG equipment and accessories Transportable refillable brazed steel cylinders for liquefied petroleumgas (LPG) Design and constructionEnglish version of DIN EN 12807:2009-09Flssiggas-Gerte und Ausrstungsteile Ortsbewegliche, wiederbefllbare, hartgeltete Flaschen aus Stahl fr

3、Flssiggas (LPG) Konstruktion und HerstellungEnglische Fassung DIN EN 12807:2009-09SupersedesDIN EN 12807:2001-08www.beuth.deDocument comprises 34 pagesDIN EN 12807:2009-09 National foreword This standard has been prepared by Technical Committee CEN/TC 286 “Liquefied petroleum gas equipment and acces

4、sories” (Secretariat: NSAI, Ireland). The responsible German body involved in its preparation was the Normenausschuss Druckgasanlagen (Pressurized Gas Installations Standards Committee), Technical Committee NA 016-00-06 AA Flssiggas-Gerte und Ausrstung; Spiegelausschuss zu CEN/TC 286. Amendments Thi

5、s standard differs from DIN EN 12807:2001-08 as follows: a) The standard has been brought in line with the current rules of presentation. b) The range of materials permitted has been extended. c) References to European brazing standards have been updated. d) The minimum required burst pressure has b

6、een reduced from 50 bar to 35 bar. e) The marking requirements have been simplified by reference to EN 14894. Previous editions DIN EN 12807: 2001-08 2 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12807 June 2009 ICS 23.020.30 Supersedes EN 12807:2001 English Version LPG equipment and access

7、ories Transportable refillable brazed steel cylinders for liquefied petroleum gas (LPG) Design and construction Equipement et accessoires pour GPL Bouteilles transportables et rechargeables en acier bras pour gaz de ptrole liqufi (GPL) Conception et fabrication Flssiggas-Gerte und Ausrstungsteile Or

8、tsbewegliche, wiederbefllbare, hartgeltete Flaschen aus Stahl fr Flssiggas (LPG) Konstruktion und Herstellung This European Standard was approved by CEN on 14 May 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S

9、tandard 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 Management Centre or to any CEN member. This European Standard exists in three official versions (English, Fr

10、ench, German). A version in any other language made by translationunder 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, Cyprus

11、, 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT

12、 EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12807:2009: EEN 12807:2009 (E) 2 Contents PageForeword 4 Introductio

13、n .5 1 Scope 6 2 Normative references 6 3 Terms, definitions and symbols .6 3.1 Terms and definitions .6 3.2 Symbols 7 4 Materials .8 5 Design .9 5.1 General requirements 9 5.2 Calculation of cylindrical shell thickness 10 5.3 Design of torispherical and semi-ellipsoidal ends concave to pressure 10

14、5.4 Design of ends of shapes other than torispherical and semi-ellipsoidal . 14 5.5 Minimum wall thickness . 14 5.6 Design of openings. 15 5.7 Valve protection 15 5.8 Non-pressure containing attachments . 15 6 Construction and workmanship 15 6.1 Brazing qualification 15 6.2 Plates and pressed parts

15、. 16 6.3 Brazed joints . 16 6.4 Tolerances . 16 6.4.1 Out of roundness 16 6.4.2 Straightness 16 6.4.3 Verticality . 17 6.5 Heat treatment . 17 6.6 Protective coating . 17 6.7 Closure of openings . 17 7 Tests and examinations . 17 7.1 General . 17 7.2 Types of test and evaluation of the test results

16、17 7.3 Material testing 18 7.4 Tensile test 19 7.4.1 Parent material 19 7.4.2 Joints . 19 7.5 Bend test 20 7.5.1 Procedure 20 7.5.2 Requirements 21 7.6 Burst test under hydraulic pressure . 22 7.6.1 Procedure 22 7.6.2 Requirements 23 7.7 Pressure test . 24 7.7.1 Procedure 24 7.7.2 Requirements 24 7.

17、8 Ultrasonic examination 24 7.8.1 Procedure 24 7.8.2 Assessment . 24 7.8.3 Requirements 24 DIN EN 12807:2009-09 EN 12807:2009 (E) 3 7.9 Macro examination 24 7.9.1 Procedure . 24 7.9.2 Requirements . 24 7.10 Visual examination of the surface of the joint 25 7.10.1 Procedure . 25 7.10.2 Requirements .

18、 25 7.11 Fatigue test 25 7.11.1 Procedure . 25 7.11.2 Requirement . 25 8 Technical requirements for type approval 25 8.1 Extent of testing 25 8.2 Cylinder types 26 8.3 Type approval certificate 26 9 Production testing and examination requirements . 26 9.1 Tests and examinations applicable to all cyl

19、inders . 26 9.2 Ultrasonic examination . 27 9.3 Macro examination 27 9.4 Examination of the valve boss joint 27 9.5 Examination of non-pressure containing joints . 27 9.6 Unacceptable imperfections found by the ultrasonic or macro examinations . 27 9.7 Batch testing (Mechanical / Burst tests) . 28 9

20、.7.1 Batch . 28 9.7.2 Inspection lots . 28 9.7.3 Rate of sampling 28 9.7.4 Additional checks 29 9.8 Failure to meet mechanical and burst test requirements . 30 9.8.1 Mechanical . 30 9.8.2 Burst . 30 9.8.3 Re-test . 30 9.8.4 Resubmission of an inspection lot 30 10 Marking . 31 11 Certificates . 31 Bi

21、bliography 32 PageDIN EN 12807:2009-09 EN 12807:2009 (E) 4 Foreword This document (EN 12807:2009) 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 n

22、ational standard, either by publication of an identical text or by endorsement, at the latest by December 2009, and conflicting national standards shall be withdrawn at the latest by December 2009. This document supersedes EN 12807:2001. The main technical changes are a widening of the range of mate

23、rials permitted, reference to the latest EN brazing standards, a reduction in the minimum required burst pressure from 50 bar to 35 bar and simplification of the marking requirements by reference to EN 14894. This document has been prepared under a mandate given to CEN by the European Commission and

24、 the European Free Trade Association, and supports essential requirements of EU Directive(s). This European Standard has been submitted for reference into the RID and/or in the technical annexes of the ADR. Attention is drawn to the possibility that some of the elements of this document may be the s

25、ubject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium,

26、 Bulgaria, 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 the United Kingdom. DIN EN 12807:2009-09 E

27、N 12807:2009 (E) 5 Introduction This European Standard calls for the use of substances and procedures that may be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve the user from legal obligations relating to health and safety at a

28、ny stage. 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 gauge unless otherwise stated. NOTE This standard requires measurement of material properties, dimensions and

29、 pressures. All such measurements are subject to a degree of uncertainty due to tolerances in measuring equipment, etc. It may be beneficial to refer to the leaflet “measurement uncertainty leaflet (SP INFO 2000 27 uncertainty pdf)”. DIN EN 12807:2009-09 EN 12807:2009 (E) 6 1 Scope This European Sta

30、ndard specifies the minimum requirements for the design, construction and testing during manufacture of transportable refillable brazed steel Liquefied Petroleum Gas (LPG) cylinders, of water capacity from 0,5 l up to and including 15 l, exposed to ambient temperatures. This European Standard applie

31、s only to cylinders having a circular cross-section without any longitudinal joint. 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 th

32、e referenced document (including any amendments) applies. EN 1044, Brazing Filler metals EN 10002-1, Metallic materials - Tensile testing - Part 1: Method of test at ambient temperature EN 10120, Steel sheet and strip for welded gas cylinders EN 10204:2004, Metallic products - Types of inspection do

33、cuments EN 12797, Brazing Destructive tests of brazed joints EN 12799:2000, Brazing Non-destructive examination of brazed joints EN 13134, Brazing Procedure approval EN 14894, LPG equipment and accessories - Cylinder and drum marking EN ISO 11117:2008, Gas cylinders Valve protection caps and valve g

34、uards Design, construction and tests (ISO 11117:2008) 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1.1 yield strength upper yield strength ReHor 0,2 % proof strength (non-proportional elongation), Rp0,2, fo

35、r steels that do not exhibit a defined yield 3.1.2 normalised heated to a uniform temperature above the upper critical point (Ac3) of the steel and then cooled under controlled conditions in still air DIN EN 12807:2009-09 EN 12807:2009 (E) 7 3.2 Symbols a Calculated thickness of the cylindrical shel

36、l, in millimetres A Percentage elongation after fracture b Calculated thickness of the end of the cylinder, in millimetres C Shape factor for ends (see Table 2, Figure 2 and Figure 3) D Outside diameter of the cylinder as given in the design drawing (see Figure 1), in millimetres DpWidth of the bend

37、 test mandrel (see Figure 7), in millimetres e Actual thickness of the material in the finished cylinder (at the point under consideration), in millimetres h Height of the cylindrical part of the end (see Figure 1), in millimetres H Outside height of the domed part of the end (see Figure 1), in mill

38、imetres LoOriginal gauge length of the test piece, in accordance with EN 10002-1, in millimetres n Ratio of width of bend test mandrel to the thickness of the test piece at the joint (see Table 5) PcCalculation pressure (1 bar = 105Pa = 105N/m2), used to calculate the minimum required thickness of t

39、he cylindrical shell and ends, in bar PbMaximum pressure attained during the burst test, in bar PhActual test pressure applied to the cylinder by the manufacturer, in bar r Inside knuckle radius of the torispherical end, in millimetres R Inside spherical radius of the torispherical end, in millimetr

40、es RgMinimum value of tensile strength guaranteed by the cylinder manufacturer for the finished cylinder, in newtons per square millimetre RoMinimum value of yield strength guaranteed by the cylinder manufacturer for the finished cylinder, in newtons per square millimetre RmActual value of tensile s

41、trength determined by the tensile test specified in 7.4, in newtons per square millimetre ReH Upper yield strength, in newtons per square millimetre, as defined in EN 10002-1 Rp0,2 Proof strength, non proportional extension in newtons per square millimetre, as defined in EN 10002-1 t Thickness of th

42、e bend test specimen at the joint DIN EN 12807:2009-09 EN 12807:2009 (E) 8 The materials shall be suitable for a brazing temperature of 1 100 C for the duration of the brazing operation, without significant grain growth. NOTE “Materials“ refer to materials in the state before any specific transforma

43、tion occurring during the manufacturing process. 4.2 All parts brazed to the cylinder shall be brazable and made of material compatible with the cylinder material. 4.3 The brazing consumables (see EN 1044) in the form of wire or paste shall be such that they are capable of giving consistent joints w

44、ith minimum tensile strength at least equal to that specified for the parent materials in the finished cylinder. 4.4 The cylinder manufacturer shall obtain certificates showing the chemical analysis and details of the mechanical properties of the steel supplied for the construction of the pressure r

45、etaining parts. The certificates/reports shall be in accordance with EN 10204:2004, Type 3.1 or higher for shells and ends and Type 2.2 or higher for the valve boss. 4.5 The manufacturer shall maintain a system of identification for the materials used in the construction in order that all materials

46、for pressure parts in the completed cylinder can be traced to their origin. 4 Materials 4.1 Materials for shells and end pressings shall be in accordance with EN 10120 or other equivalent material specification or standard meeting the requirements of Table 1. Alternative material specifications shal

47、l, as a minimum, specify chemical composition, mechanical properties, heat treatment and delivery conditions. DIN EN 12807:2009-09 EN 12807:2009 (E) 9 Table 1 Material requirements Element Limits% Materials, other than EN 10120, used for the fabrication of cylinders shall be of brazable quality and

48、the following limits shall not be exceeded in the cast analysis: Carbon Silicon Manganese Phosphorus Sulphur Phosphorus plus sulphur 0,22 max. 0,50 max. 0,30 min. to 1,60 max. 0,025 max. 0,020 max. 0,040 max. Use of micro-alloying elements such as niobium, titanium and vanadium shall be limited to t

49、he following contents: Niobium Titanium Vanadium Niobium plus vanadium 0,05 max. 0,05 max. 0,05 max. 0,08 max. Where other micro-alloying elements are used, their presence and amounts shall be reported, together with the above, in the steel manufacturers certificate. Should check analyses be required, they shall be carried out either on specimens taken during manufacture from material in the form as supplied by the steel maker to the cylinder manufacturer or from finished cylinders. 5 Design 5.1 General requirements 5.1.1 The