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1、CEN ENx28b-4-94 3404.589 0086835 394 BRITISH STANDARD 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
2、the status of a British Standard UDC 621 642.02-98-034 715 629.4-5yZ 620 1 62-777 BS EN 286-4: 1995 Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- BS EN 2864 : 1995 Standards
3、 Board and comes into Amd. NO. Date effect on 15 February 1995 0 BSI 1995 Cooperating organizations Rxt affected The European Committee for Standardization, under whose supervision this European Standard was prepared, comprises the national standards organizations of the following Western European c
4、ountries: Austria Belgium Denmark Finland France Germany Greece Iceland Ireland Italy Luxembourg Netherlands Norway Portugal Spain Sweden Switzerland United Kingdom Oesterreichisches Normungsinstitut Institut belge de normalisation Dansk Standard Suomen Standardisoimisliito, r.y. Association franais
5、e de normalisation Deutsches Institut fr Normung e.V. Hellenic Organization for Standardization Technological Institute of Iceland National Standards Authority of Ireland Ente Nazionale Italiano di Unificazione Inspection du Travail et des Mines Nederlands Nonnalisatie-instituut Norges Standardiseri
6、ngsforbund Instituto Portugus da Qualidade Asociacin Espaola de Normalizacin y Certificacin Standardiseringskommissionen i Sverige Association suisse de normalisation British Standards Institution The following BSI references relate to the work on this standard: Committee reference PVE17 Draft for c
7、omment 9081699 DC ISBN O 580 2186 3 Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- CEN EN*28b-4 94 W 3404589 O086837 Lb7 m BS EN 286-4 : 1995 Contents Page Cooperating organi
8、zations Inside front cover National foreword i Foreword 2 Text of EN 286-4 3 National annex NA (informative) Committees responsible National annex NB (informative) Cross-references Inside back cover Inside back cover National foreword This British Standard has been prepared under the direction of th
9、e Pressure Vessel Standards Policy Committee and is the English language version of EN 286-4 : 1994 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
10、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. Compliance with a British Standard does not of itself confer immunity from legal obligations. i Copyright European Committee for S
11、tandardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 286-4 September 1994 UDC 621.642.02-98-034.715 : 629.4-592 620.1 : 62-777 Descriptors: Railway rolling stock
12、, brakes, pneumatic equipment, pressure vessels, tanks containers, aluminium alloys, design, computation, production control, weld defects, acceptability, assembling, certification, marking English version Simple unfired pressure vessels designed to contain air or nitrogen - Part 4: Aluminium alloy
13、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 - Partie 4: Rcipients pression en alliages daluminium destins aux quipements pneumatiques de freinag
14、e et aux quipements pneumatiques auxiliaires du matriel roulant ferroviaire Einfache unbefeuerte Druckbehlter fr Luft oder Stickstoff - Teil 4: Druckbehlter aus Aluminiumlegierungen fr Druckluftbremsanlagen und pneumatische Hilfseinrichtungen in Schienenfahrzeugen This European Standard was approved
15、 by CEN on 1994-09-09. CEN members are bound to comply with the CENKENELEC 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 stan- da
16、rds may be obtained on application to the Central Secretariat or to any GEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a GEN member into its own language and notified to th
17、e Central Secretariat has the same status as the official versions. CEN members are the national standards bodies ofAustria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN Euro
18、pean 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 : 1994 E Copyright European Committee for Standardization Provided by IHS under license w
19、ith CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- w w w . b z f x w . c o m CEN EN*EBb-4 94 3404589 0 0 8 6 8 3 9 T 3 T = Page 2 EN 286-4 : 1994 Foreword This European Standard was prepared by CEN/TC 54, Unfired pressure vessels, of which the secretariat is
20、 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, and supports essential requirements of the EC Directive(s). CEN/TC 54 decided to submit the final draft for formal vote by its resolution. The resul
21、t 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 braking and auxiliary systems for motor vehicles and their trailers Part 3: Steel pressure vessels designed for air braking equipment and auxiliary pne
22、umatic equipment for railway rolling stock 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 March 1995, and conflicting national standards shall be withdrawn at the latest by March 1995. According
23、to the CENKENELEC Internal Regulations, the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain and United Kingdom Contents Foreword 1 Scope 2 Normative refere
24、nces 3 Symbols 4 Materials 5 Design Page 2 3 3 4 4 5 6 Inspection and drainage bosses 13 7 Marking 13 8 Corrosion protection 13 9 Qualification of welding procedures 14 10 Qualification of welders and welding operators 14 11 Testing of the vessels 17 12 Certification procedures 24 13 Information to
25、be supplied at the time of invitation to tender and time of order 24 14 Delivery 24 15 Documentation to accompany the vessel 24 Annex A (normative) Verification 25 Annex B (normative) Declaration of conformity - Surveillance 25 Annex C (normative) Design and manufacturing schedules 27 Annex D (norma
26、tive) Type examination 27 Annex E (normative) Content of the manufactured record 28 Annex F (informative) Assembly of the vehicles 28 Annex G (informative) Service surveillance of vessels 31 Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo repr
27、oduction or networking permitted without license from IHS -,-,- w w w . b z f x w . c o m CEN EN*Z86-4 74 W 3404589 0086840 751 W 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
28、 braking equipment and auxiliary pneumatic equipment for railway rolling stock (see 1.6). 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 of 10 bar; e) the product of the maximum workin
29、g pressure (in bar) and the volume (in litre): 500 bar litres e , + c ecs = K, 20f + P The minimum design stress shall be taken from table 1. NOTE. It has been established from the standards quoted in this part that 0,3Rm is always greater than 0,6R,. The values of P and K, to be taken into account
30、are : a) case no. 1: P 2 1,15P8 and K, = 1 for automatic welding and when tests are carried out in acordance with 1 1 . 1 . 2 . 1 ; b) case no. 2: P 2 1,3Ps and K, = 1 for automatic welding and when tests are carried out in accordance with 1 1 . 1 . 2 . 2 ; c) case no. 3: P 2 1,25Ps and K, = 1,15 fo
31、r welding using a non-automatic process and when tests are carried out according to 11.1.1. 5 . 1 . 4 . 3 Calculation of the thickness of the ends ech The end thickness shall be calculated in the following manner: a) Select the values off from table 1, and with P = P, calculate Pllof. Copyright Euro
32、pean Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- w w w . b z f x w . c o m CEN ENx28b-4 94 W 3404589 0086844 3T7 Page 7 EN 286-4 : 1994 R (nominal) = 0, 0,10, recess welded bosses (see figur
33、es lla and 1 lb); b) welded reinforcing plates and recess welded bosses (see figure llc). Adequate reinforcement shall be provided in all planes passing through the axis of the opening. 5 . 2 . 3 . 2 Reinforcement of opening Only bosses of the full penetration type as shown in figures lla and llb ma
34、y be used. / A P I I Figure lla. Reinforcement of cylindrical shell with boss Af b +I I 1 Figure llb. Reinforcement of spherical shell with boss Figure llc. Reinforcement of spherical shell by reinforcing plate and boss Figure 11. Reinforcement of opening Copyright European Committee for Standardiza
35、tion Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- The length of the boss reinforcement, used in equation (3) for determining Ab shall not be greater than I , , see equation (211: The value of erb used for determining Aa i
36、n equation (3) shall not be more than twice ers. The following condition shall also be complied with: contributing to the Irh 5 ITS (2) (3) 5.2.3.3 Reinforcement by reinforcing plate and boss One of the following two conditions shall be complied with: - the permissible stress f b is less than stress
37、 f: Pl10 (A, + 0,5(Afs +Ab + 0,7Af,) _ 500 mm) c) circularity of the cylindrical body d) straightness of any generating line of the cylindrical body * 0,O1Do;2 d) straightness of any generating line of the cylindrical body f o,01L;2 e) volume of the vessel in the as-delivered state f 3,5 %. In addit
38、ion, the wall of the vessels shall be free of localized defects such as sudden local irregularities, bumps, flats, cavities, folds, tool marks or visible symmetry defects. Cavities or bumps are permitted provided that they connect with the surrounding surface with gentle slopes f 7 mm; f 3 mm; 0,6 %
39、; 0,01D,;2 Page 23 EN 286-4 : 1994 not exceeding 25% (14”) and with rounding of radius greater than 50 mm. Their dimensions shall not exceed : f) radially - + 3 mm; g) longitudinally 0,25 L; h) transversely 71DJ20. In addition, surface scratches are permitted as long as they are less than 0,l mm dee
40、p. Acceptance of a concentration of scratches shall be the subject of agreement between the manufacturer and the client. 11.3 Pressure test Each vessel with all its fittings (bosses, brackets, etc.) shall be subjected to a hydrostatic test, prior to the application of the protective coating, equival
41、ent to a pressure of 1,5 times the design pressure, i.e.: a) 17,25 bar when the design pressure is taken as 11,5 bar (case no. 1 - 5.1.4.2); b) 19,5 bar when the design pressure is taken as 13 bar (case no. 2 - 5.1.4.2); c) 18,75 bar when the design pressure is taken as 12,5 bar (case no. 3 - 5.1.4.
42、2). in the presence of a person of recognized competence (see clause 12). This pressure shall be maintained for a sufficient length of time to permit a visual examination of all the surfaces and all the welded joints. The vessel shall show no sign of plastic deformation or leakage. Subject to agreem
43、ent, a pneumatic test may be carried out on each vessel, at the pressure defined above. WARNING. The pneumatic test is potentially a much more dangerous operation than the hydraulic test in that, irrespective of the size of the vessel, any failure during testing may result in an explosion. It should
44、 therefore only be carried out after consultation with the inspection body and having ensured that the safety measures taken comply with current legislation of the country in which the test is carried out. All vessels which fail the pressure test shall be rejected. Repairs may be permitted, with the
45、 agreement of the client network, but in this case the pressure test shall be repeated. 2The tolerances of shape and position are set out in IS0 1101. Copyright European Committee for Standardization Provided by IHS under license with CEN Not for ResaleNo reproduction or networking permitted without
46、 license from IHS -,-,- CEN ENx28b-4 94 3404589 0086861 486 Verification Verification or declaration of conformity” and surveillance (and special documents) Page 24 EN 286-4 : 1994 I See annex A See annex A See annex B 12 Certification procedures This standard specifies three classes of vessel to wh
47、ich the certification procedure set out in table 10 applies. Verification” or declaration of conformity (and special documents) 13 Information to be sup lied at the time of order The invitation to tender and order, to which is attached the final drawing of the vessel, shall indicate the number of th
48、is standard and specify the following, if they have not already been specified in the drawing or the documents attached to it: time of invitation to ten 8 er and the a) the dimensions and volume of the vessel; b) the aluminium alloy or alloys, together with the number of the reference standard, from
49、 which the shell and ends are to be made (see clause 4); c) the type of shell/end joints (see 5.1.5.2); d) the shape of the openings and their welding to the vessel (see 5.2.4); e) the location of the openings (see clause 6); f) whether the marking is stamped in the metal or on a plate (see clause 7); g) the marks which the vessel shall have and their location on it (see 7.