[www.staffempire.com]-BS EN 286-1-1998 Simple unfired pressure vessels designed to contain air or nitrogen — Part 1 Pressure vessels for general purposes.pdf

BRITISH STANDARDBS EN 286-1:1998Incorporating Corrigendum No.1 and Amendment No.1Simple unfired pressure vessels designed to contain air or nitrogen Part 1:Pressure vessels for general purposesThe European Standard EN 286-1:1998,with the incorporation of amendment A1:2002,has the status of a British StandardICS 23.020.30?BS EN 286-1:1998This British Standard,having been prepared under the direction of the Engineering Sector Board,was published under the authority of the Standards Board and comes into effect on 15 November 1998 BSI 12 December 2002ISBN 0 580 29163 4National forewordThis British Standard is the English language version of EN 286-1:1998,including amendment A1:2002 and Corrigendum July 2002.It supersedes BS EN 286-1:1991,which is withdrawn.Amendment No.1 14014 implements CEN amendment A1:2002 and CEN Corrigendum July 2002.The UK participation in its preparation was entrusted to Technical Committee PVE/17,Air receivers General,which has the responsibility to:A list of organizations represented on this committee can be obtained on request to its secretary.Cross-referencesThe British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled“International Standards Correspondence Index”,or by using the“Search”facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract.Users are responsible for its correct application.Compliance with a British Standard does not of itself confer immunity from legal obligations.aid enquirers to understand the text;present to the responsible European committee any enquiries on the interpretation,or proposals for change,and keep the UK interests informed;monitor related international and European developments and promulgate them in the UK.Summary of pagesThis document comprises a front cover,an inside front cover,the EN title page,pages 2 to 81 and a back cover.The BSI copyright date displayed in this document indicates when the document was last issued.Sidelining in this document indicates the most recent changes by amendment.Amendments issued since publicationAmd.No.DateComments10548 Corrigendum No.1May 19991401412 December 2002Indicated by a sideline EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORM EN 286-1February 1998+A1July 2002ICS 23.020.30Incorporating corrigendum July 2002Descriptors:pressure vessels,gas pressure vessels,tanks:containers,air,nitrogen,classifications,materials,steels,aluminium,aluminium alloys,design,manufacturing,welding,qualification,procedures,tests,technical notices,marking,certification English versionSimple unfired pressure vessels designed to contain air or nitrogen Part 1:Pressure vessels for general purposes(includes amendment A1:2002)Rcipients pression simples,non soumis la flamme,destins contenir de lair ou de lazote Partie 1:Rcipients pour usage gnral(inclut lamendement A1:2002)Einfache unbefeuerte Druckbehlter fr Luft oder Stickstoff Teil 1:Druckbehlter fr allgemeine Zwecke(enthlt nderung A1:2002)This European Standard was approved by CEN on 30 November 1997.Amendment A1 was approved by CEN on 11 April 2002.CEN members are bound to comply with the CEN/CENELEC InternalRegulations which stipulate the conditions for giving this European Standardthe status of a national standard without any alteration.Up-to-date lists andbibliographical references concerning such national standards may be obtainedon application to the Central Secretariat 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 theresponsibility of a CEN member into its own language and notified to theCentral Secretariat has the same status as the official versions.CEN members are the national standards bodies of Austria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switzerland andUnited Kingdom.CENEuropean Committee for StandardizationComit Europen de NormalisationEuropisches Komitee fr NormungCentral Secretariat:rue de Stassart 36,B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.Ref.No.EN 286-1:1998+A1:2002 E EN 286-1:1998 BSI 12 December 20022ForewordThis European Standard has been prepared by Technical Committee CEN/TC 54,Unfired pressure vessels,the secretariat of which is held by BSI.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 August 1998,and conflicting national standards shall be withdrawn at the latest by August 1998.It is the revision of the standard adopted by CEN in 1991.Main changes concern:scope;materials;weld joint design;calculations coefficient;flange calculations;reinforcement of openings;supports;testing and inspection;instruction and marking;corrosion allowance.Although the requirements of this standard support the essential safety requirements of the Simple pressure vessel Directive 87/404/EEC,that directive does not make compliance with this standard mandatory.This standard includes an interpretation of the conformity assessment requirements of the directive and thus the national implementing legislation.These interpretations cannot be taken as having any formal status and carry the risk of misinterpretation.Users of this standard should,therefore,refer to the applicable national legislation for the definitive conformity assessment requirements.A further revision of this standard is being prepared to remove any misleading provisions.This standard is one of four within the series Simple unfired pressure vessels designed to contain air or nitrogen.The other standards are:Part 2:Pressure vessels for air braking equipment 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;Part 4:Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock.This Part of this European Standard has been prepared for use in conjunction with the informative Annex G of this European Standard.No rules of construction can be written in sufficient detail to ensure good workmanship and construction.Each manufacturer is responsible for taking every necessary step to make sure that the quality of workmanship and construction is such as to ensure compliance with good engineering practice.Aspects of quality assurance are dealt with in various clauses and annexes of this standard;for example in Clause 10,Testing;and in Annex A,Verification;Annex B,Declaration of conformity Surveillance;Annex C,Design and manufacturing schedule;Annex D,Type examination;Annex E,Content of the manufacturing record,all of which form part of this standard.These are minimum requirements,having taken into account EN ISO 9002 Quality systems Model for quality assurance in production,installation and servicing and EN ISO 9003 Quality systems Model for quality assurance in final inspection and test,but it is not implied that a quality system in accordance with EN ISO 9002 and EN ISO 9003 is necessary.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 EU Directive(s).The general layout of the standard was not changed and accordingly is not in full conformity with the recent CEN rules for harmonized standards.According to the CEN/CENELEC Internal Regulations,the national standards organizations of the following countries are bound to implement this European Standard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switzerland and the United Kingdom.w w w.b z f x w.c o mEN 286-1:1998 BSI 12 December 20023Foreword to amendment A1This document(EN 286-1:1998/A1:2002)has been prepared by Technical Committee CEN/TC 54,Unfired pressure vessels,the Secretariat of which is held by BSI.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 2003,and conflicting national standards shall be withdrawn at the latest by January 2003.This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association,and supports essential requirements of EU Directive(s).According to the CEN/CENELEC Internal Regulations,the national standards organizations of the following countries are bound to implement this European Standard:Austria,Belgium,Czech Republic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Spain,Sweden,Switzerland and the United Kingdom.w w w.b z f x w.c o mEN 286-1:1998 BSI 12 December 20024Contents PageForeword21Scope52Normative references53Definitions,symbols and units73.1Definitions73.2General symbols and units94Classifications and certification procedures10 5Materials105.1Main pressurized parts(see also 5.2)105.2Accessories contributing towards the strength of vessels115.3Non-pressurized parts125.4Welding consumables126Design126.1General126.2Weld joint design126.3Determination of wall thicknesses166.4Calculation method176.5Experimental method526.6Access and inspection openings536.7Drainage openings566.8Supports567Fabrication597.1Manufacturing and testing equipment597.2Forming of ends and shell597.3Typical connections of main body597.4Welding608Qualification of welders and welding operators639Qualification of welding procedures639.1General639.2Additional requirements for steel vessels649.3Existing welding procedures6410Testing6410.1 Calibration6410.2 Vessels designed by calculation method6410.3 Vessels designed by experimental method7010.4 Testing records7110.5 Pressure test7111Instructions to accompany the vessel7212Marking72Annex A(normative)Verification73Annex B(normative)Declaration of conformity Surveillance73PageAnnex C(normative)Design and manufacturing schedules76Annex D(normative)Type examination76Annex E(normative)Content of the manufacturing record77Annex F(normative)Test of the protection against corrosion77Annex G(informative)Essential safety requirements79 w w w.b z f x w.c o mEN 286-1:1998 BSI 12 December 200251 Scope1.1 This part of this European Standard applies to the design and manufacture of welded,simple unfired pressure vessels manufactured in series,with a single compartment,hereinafter referred to as vessels,the essential safety requirements of which are given in Annex G.It only applies to vessels that:a)include fabrication by welding,but some designs can entail the use of bolts;b)have a simple geometry enabling simple-to-use production procedures;this is achieved by either:1)a cylindrical part of circular cross-section closed by outwardly dished and/or flat ends which revolve around the same axis as the cylindrical part;or2)two outwardly dished ends revolving around the same axis;c)have branches not larger in diameter than 0,5 of the diameter of the cylinder to which they are welded.1.2 It applies to vessels which are intended to contain air or nitrogen which are not intended to be fired and which operate within the following constraints:a)subjected to an internal gauge pressure greater than 0,5 bar;b)the parts and assemblies contributing to the strength of the vessel under pressure to be made either of non-alloy quality steel or of non-alloy aluminium or non-age-hardening aluminium alloys;NOTEIn this part of the standard,the term“aluminium”covers non-alloy aluminium and aluminium alloys.c)the maximum working pressure is not greater than 30 bar.The product of the maximum working pressure and the capacity of the vessel(PS?V)is greater than 50 bar?l but does not exceed 10 000 bar?l.Below 50 bar?l,use of this standard is considered to fulfil the requirements of sound engineering practice;d)the minimum working temperature is not lower than?50?C,and the maximum working temperature is not higher than 300?C for steel and 100?C for aluminium or aluminium alloy vessels.It does not apply to vessels specifically designed for nuclear use,to vessels specifically intended for installation in,or the propulsion of,ships and aircraft,nor to fire extinguishers.The standard does not apply to transportation vessels nor to vessels which also contain substances other than air or nitrogen which could adversely affect their safety.For vessels designed to contain compressed air for the braking systems of road vehicles and their trailers,see also EN 286-2.For vessels designed to contain compressed air for the braking systems of rail-mounted vehicles,see also EN 286-3 and EN 286-4.1.3 It applies to the vessel proper,from the inlet connection to the outlet connection and to all other connections required for valves and fittings.If bosses/pipes are used,the requirements specified herein begin or end at the weld where flanges,if used,would have been fitted.1.4 For the purposes of calculations required to be made in accordance with this standard,dimensions are in millimetres,pressures are in bars(except where otherwise specified),stresses are in newtons per square millimetre and temperatures are in degrees Celsius.2 Normative referencesThis European Standard 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 this European Standard only when incorporated in it by amendment or revision.For undated references the latest edition of the publication referred to applies.EN 287-1,Approval testing of welders:Fusion welding Part 1:Steels.EN 287-2,Approval testing of welders:Fusion welding Part 2:Aluminium and aluminium alloys.EN 288-2,Specification and approval of welding procedures for metallic materials Part 2:Welding procedure specification for arc welding.EN 288-3,Specification and approval of welding procedures for metallic materials Part 3:Welding procedure tests for arc welding of steels.w w w.b z f x w.c o mEN 286-1:19986 BSI 12 December 2002EN 288-4,Specification and approval of welding procedures for metallic materials Part 4:Welding procedure tests for arc welding of aluminium and its alloys.EN 473,Qualification and certification of NDT personnel General principles.EN 485-2,Aluminium and aluminium alloys Sheet,strip and plates Part 4:Tolerances on shape and dimensions for cold rolled products.EN 573-3,Aluminium and aluminium alloys Chemical composition and form of wrought products Part 3:Chemical composition.EN 573-