BS EN 286-4-1995 Simple unfired pressure vessels designed to contain air or nitrogen - Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic e.pdf

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1、BRITISH STANDARD BS EN 286-4:1995 Simple unfired pressure vessels designed to contain air or nitrogen Part 4: Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock The European Standard EN 286-4:1995 has the status of a Britis

2、h Standard UDC 621.642.02-98-034.715:629.4-592:620.1:62-777BS EN 286-4:1995 This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes intoeffect on 15 February 1995 BSI 07-1999 The following BSI

3、 references relate to the work on this standard: Committee reference PVE/17 Draft for comment 90/81699 DC ISBN 0 580 21850 3 Cooperating organizations The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizatio

4、ns of the following Western European countries: Austria Oesterreichisches Normungsinstitut Belgium Institut belge de normalisation Denmark Dansk Standard Finland Suomen Standardisoimisliito, r.y. France Association franaise de normalisation Germany Deutsches Institut fr Normung e.V. Greece Hellenic

5、Organization for Standardization Iceland Technological Institute of Iceland Ireland National Standards Authority of Ireland Italy Ente Nazionale Italiano di Unificazione Luxembourg Inspection du Travail et des Mines Netherlands Nederlands Normalisatie-instituut Norway Norges Standardiseringsforbund

6、Portugal Instituto Portugus da Qualidade Spain Asociacin Espaola de Normalizacin y Certificacin Sweden Standardiseringskommissionen i Sverige Switzerland Association suisse de normalisation United Kingdom British Standards Institution Amendments issued since publication Amd. No. Date CommentsBS EN 2

7、86-4:1995 BSI 07-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN 286-4 5 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBS EN 286-4:1995 ii BSI 07-

8、1999 National foreword This British Standard has been prepared under the direction of the Pressure Vessel Standards Policy Committee and is the English language version of EN286-4:1994 Simple unfired pressure vessels designed to contain air or nitrogen Part4: Aluminium alloy pressure vessels designe

9、d for air braking equipment and auxiliary pneumatic equipment for railway rolling stock, published by the European Committee for Standardization (CEN). EN 286-4 was produced as a result of international discussions in which the UK took an active part. A British Standard does not purport to include a

10、ll the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i an

11、d ii, theEN title page, pages 2 to 38, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN286-

12、4 September1994 UDC 621.642.02-98-034.715:629.4-592:620.1:62-777 Descriptors: Railway rolling stock, brakes, pneumatic equipment, pressure vessels, tanks containers, aluminium alloys, design, computation, production control, weld defects, acceptability, assembling, certification, marking English ver

13、sion Simple unfired pressure vessels designed to contain air or nitrogen Part 4: Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock Rcipients pression simples, non soumis la flamme, destins contenir de lair ou de lazote Par

14、tie4: Rcipients pression en alliages daluminium destins aux quipements pneumatiques de freinage et aux quipements pneumatiques auxiliaires du matriel roulant ferroviaire Einfache unbefeuerte Druckbehlter fr Luft oder Stickstoff Teil 4: Druckbehlter aus Aluminiumlegierungen fr Druckluftbremsanlagen u

15、nd pneumatische Hilfseinrichtungen in Schienenfahrzeugen This European Standard was approved by CEN on1994-09-09. 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 a

16、lteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by tra

17、nslation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembo

18、urg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1994 Copyright reserved to CEN members Ref. No. EN 286-4

19、:1994 EEN 286-4:1994 BSI 07-1999 2 Foreword This European Standard was prepared by CEN/TC54, Unfired pressure vessels, of which the secretariat is held by BSI. This European Standard has been prepared under a Mandate given to CEN by the European Commission and the European Free Trade Association, an

20、d supports essential requirements of the EC Directive(s). CEN/TC 54 decided to submit the final draft for formal vote by its resolution. The result was positive. This part is one of a series of four. The other Parts are: Part 1: Design, manufacture and testing; Part 2: Pressure vessels for air braki

21、ng and auxiliary systems for motor vehicles and their trailers; Part 3: Steel pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock. This European Standard shall be given the status of a national standard, either by publication of an identica

22、l text or by endorsement, at the latest by March1995, and conflicting national standards shall be withdrawn at the latest by March1995. According to the CEN/CENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, France, Germany

23、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain and UnitedKingdom Contents Page Foreword 2 1 Scope 5 2 Normative references 5 3 Symbols 6 4 Materials 7 5 Design 7 6 Inspection and drainage bosses 15 7 Marking 15 8 Corrosion protection 16 9 Qualification of welding

24、 procedures 19 10 Qualification of welders and weldingoperators 19 11 Testing of the vessels 19 12 Certification procedures 25 13 Information to be supplied at the time ofinvitation to tender and time of order 25 14 Delivery 25 15 Documentation to accompany the vessel 25 Annex A (normative) Verifica

25、tion 26 Annex B (normative) Declaration of conformity Surveillance 26 Annex C (normative) Design and manufacturing schedules 28 Annex D (normative) Type examination 29 Annex E (normative) Content of the manufactured record 29 Annex F (informative) Assembly of the vehicles 30 Annex G (informative) Se

26、rvice surveillance of vessels 35 Figure 1 Position of longitudinal welds on the bottom of the shell 8 Figure 2 Position of longitudinal welds on the shell 8 Figure 3 Torispherical end 9 Figure 4 Theoretical curves for dished ends 10 Figure 5 Butt weld with centre lines aligned 10 Figure 6 Butt weld

27、with centre lines offset 11 Figure 7 Butt welds with centre lines offset and connecting slope 11 Figure 8 Weld of the shell ring to end withneckededge 11 Figure 9 Position of a hole in an end 14EN 286-4:1994 BSI 07-1999 3 Page Figure 10 Distance between two welds measured from the end of the edge pr

28、eparation 12 Figure 11 Reinforcement of opening 12 Figure 12 Fixing of a boss by an external weld 13 Figure 13 Fixing of a boss by internal and external welds 13 Figure 14 Fixing of a boss by internal and external fillet welds 13 Figure 15 Fixing of a drainage boss by an external weld 14 Figure 16 F

29、ixing of a drainage boss by internal and external welds 14 Figure 17 Fixing of a drainage boss with drainage groove 14 Figure 18 Dip tube fixed to an end 14 Figure 19 Dip tube fixed to the shell of a horizontal vessel 14 Figure 20 Dip tube fixed to the shell of a vertical vessel 14 Figure 21 Dip tub

30、e fixed to a top end of a vertical vessel 14 Figure 22 Dip tube fixed to the upper part oftheshell of a horizontal vessel 15 Figure 23 Fixing of a dip tube 15 Figure 24 Fixing of a dip tube to a boss 15 Figure 25 Recessed fixing of a dip tube to a boss 15 Figure 26 Location of openings 16 Figure 27

31、Location of identity and service marks 17 Figure 28 Marking plate 18 Figure 29 Identity and service marks 19 Figure 30 Reinforcement thickness 24 Figure F.1 Fixing by straps of a vessel in thehorizontal position 31 Figure F.2 Fixing by straps of a vessel in thevertical position 31 Figure F.3 End of

32、straps with angle brackets 32 Figure F.4 Ends with straps folded and reinforced 32 Figure F.5 Ends of straps with welded bolt 33 Figure F.6 Ends of straps with grooved welded bolt 33 Figure F.7 Fixing to the vehicle with a bolt 34 Figure F.8 Fixing to the vehicle with a nut 34 Page Table 1 Aluminium

33、 alloy materials 7 Table 2 Height of the cylindrical portion of ends 8 Table 3 Diameters and locations of bosses 9 Table 4 Amount of testing required for weldsmade by a non-automatic process 10 Table 5 Amount of testing required for welds made by an automatic procedure with PU 1,15P s 10 Table 6 Amo

34、unt of testing required for welds made by an automatic procedure with P U 1,15P s 11 Table 7 Acceptance levels of defects in butt-welds, detected by visual examination 11 Table 8 Acceptance levels of defects in butt-welds, detected by X-ray examination 11 Table 9 Maximum permissible reinforcementfor

35、longitudinal and circular welds 24 Table 10 Classification of vessels 12 Table F.1 Dimensions of straps 31 Table F.2 Tightening torques 31 Table G.1 Service surveillance of vessels used at P sk 6 bar 36 Table G.2 Service surveillance of vessels used at 6 bar P sk 10 bar 36 Table G.3 Annual sampling

36、examination 364 blankEN 286-4:1994 BSI 07-1999 5 1 Scope 1.1 This Part of this European Standard is applicable to simple unfired aluminium alloy pressure vessels, referred to as “vessel” in this standard, designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock

37、(see1.6). 1.2 The vessels to this standard are: a) made from a single shell; b) made from aluminium alloy; c) fabricated by welding; d) used at a maximum working pressure of10bar; e) the product of the maximum working pressure (in bar) and the volume (in litre): 500 bar litres PV u 10000 bar litres;

38、 f) made of a cylindrical part of circular cross-section called the shell with two outwardly dished torispherical ends, that is two dished ends with the same axis of rotation. This standard therefore does not apply to vessels with one or two flat ends or those made up of several compartments; g) cal

39、culated with a design pressure P (see5.1.4.2); h) designed for a working temperature of between50C and+100C +65C for certain grades of aluminium alloy (see4.1.1); j) fastened to the vehicles by straps; 1.3 In normal service, a momentary overpressure of1bar of the maximum working pressure is permitte

40、d (10% ofP s ). 1.4 This Part of this European Standard applies to the vessel proper, from the inlet connection to the outlet connection and to all other connections and fittings belonging to the vessel. 1.5 This Part of this European Standard gives the requirements to be met for the calculation, de

41、sign, fabrication, inspection during fabrication and certification of the vessel, and fittings for assembly to the vehicle. These requirements cannot be written in sufficient detail to ensure good workmanship or proper construction. Each manufacturer is therefore responsible for taking every necessa

42、ry step to make sure that the quality of workmanship and construction is such as to ensure compliance with good engineering practice. This Part of this standard gives: a) inAnnex F, recommendations for assembly to the vehicles; b) in Annex G, recommendations for the service surveillance of vessels.

43、1.6 The requirements of this Part of this European Standard apply to vessels designed to be fitted to rail vehicles used on the main national networks, urban networks, underground railways, trams, private networks (regional railways, company railways, .). 2 Normative references This European Standar

44、d incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to th

45、is European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 287-2, Approval testing of welders fusion welding Part 2: Aluminium and aluminium alloys. EN 288-1, Specifications and approval of welding

46、procedures for metallic materials Part 1: General rules for fusion welding. EN 288-2, Specification and approval of welding procedures for metallic materials Part 2: Welding procedure specification for arc welding. EN 288-4, Specification and approval of welding procedures for metallic materials Par

47、t 4: Welding procedure tests for the arc welding of aluminium and its alloy. EN 10025, Hot rolled products of non-alloy structural steels Technical delivery conditions. EN 26520, Classification of imperfections in metallic fusion welds, with explanations. ISO 209-1, Wrought aluminium and aluminium a

48、llos Chemical composition and forms of product Part 1: Chemical composition. ISO 209-2, Wrought aluminium and aluminium alloys Chemical composition and forms of product Part 2: Forms of products. ISO 228-1, Pipe threads where pressure-tight joints are not made on the threads Part 1: Designation, dim

49、ensions and tolerances. ISO 261, ISO general purpose metric screw threads General plan. ISO 1101, Technical drawings Geometrical tolerancing Tolerancing of form, orientation, location and run-out Generalities, definitions, symbols, indications on drawings. ISO 2081, Metallic coatings Electroplated coating of zinc on iron or steel. EN 286-4:1994 6 BSI 07-1999 ISO 2107, Aluminium, magnesium an