1、BRITISH STANDARDBS EN 12516-1:2005Industrial valves Shell design strength Part 1:Tabulation method for steel valve shellsThe European Standard EN 12516-1:2005 has the status of a British StandardICS 23.060.01Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 G
2、MT+00:00 2006,Uncontrolled Copy,(c)BSIBS EN 12516-1:2005This British Standard was published under the authority of the Standards Policy and Strategy Committee on 4 May 2005 BSI 4 May 2005ISBN 0 580 45984 5National forewordThis British Standard is the official English language version of EN 12516-1:2
3、005.The UK participation in its preparation was entrusted by Technical Committee PSE/7,Valves,to Subcommittee PSE/7/1,Valves Basic standards,which has the responsibility to:A list of organizations represented on this subcommittee can be obtained on request to its secretary.Cross-referencesThe Britis
4、h 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.Th
5、is 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 interna
6、tional/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
7、,pages 2 to 111 and a back cover.The BSI copyright notice displayed in this document indicates when the document was last issued.Amendments issued since publicationAmd.No.Date CommentsLicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontroll
8、ed Copy,(c)BSIEUROPEANSTANDARDNORMEEUROPENNEEUROPISCHENORMEN125161April2005ICS23.060.01EnglishversionIndustrialvalvesShelldesignstrengthPart1:TabulationmethodforsteelvalveshellsRobinetterieindustrielleRsistancemcaniquedesenveloppesPartie1:Mthodetabulairerelativeauxenveloppesdappareilsderobinetteriee
9、nacierIndustriearmaturenGehusefestigkeitTeil1:TabellenverfahrenfrdrucktragendeGehusevonArmaturenausStahlThisEuropeanStandardwasapprovedbyCENon15March2005.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope anStandardthestatusofanationalstanda
10、rdwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslationundertheresponsibilit
11、yofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherla
12、nds,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEUROPENDENORMALISATIONEUROPISCHESKOMITEEFRNORMUNGManagementCentre:ruedeStassart,36B1050Brussels2005CEN AllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnat
13、ionalMembers.Ref.No.EN125161:2005:ELicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)2 Contents Page Foreword.5 Introduction.6 Table 1 Pressure used to calculate tabulated thickness.6 Table 2 Ratio for
14、determining pressure/temperature ratings.7 1 Scope.9 2 Normative references.9 3 Terms,definitions and symbols.12 Table 3-Symbols and units.13 4 Size.14 5 Material groups and material temperature limitations.14 6 Pressure/temperature(p/t)ratings.14 7 Temperature effects.15 8 Dimensions.15 Table 4 Min
15、imum wall thickness for socket welding and threaded ends.18 9 Auxiliary connections.20 Table 5 Auxiliary connection size.20 Table 6 Minimum effective thread length for auxiliary connections.20 Table 7 Dimensions of socket welded auxiliary connections.21 Table 8 Minimum diameter of bosses for auxilia
16、ry connections.22 10 Requirements for special rating.22 Table 9 Sampling criteria for castings produced using sampling method.23 11 End dimensions.26 12 Marking.26 Table 10 Valve body minimum wall thickness values,emin.35 Table 11 Material groups and temperature limitations for ASTM based non-alloy
17、and low alloy steels.39 Table 12 Material groups and temperature limitations for ASTM based high alloy steels.40 Table 12(continued).41 Table 13 Material groups for EN standard steels.42 Table 14 Ratings for group 1C1 materials.43 Table 15 Ratings for group 1C2 materials.44 Table 16 Ratings for grou
18、p 1C3 materials.45 Table 17 Ratings for group 1C4 materials.46 Table 18 Ratings for group 1C5 materials.47 Table 19 Ratings for group 1C6 materials.48 Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)3
19、 Table 20 Ratings for group 1C7 materials.49 Table 21 Ratings for group 1C8 materials.50 Table 22 Ratings for group 1C9 materials.51 Table 23 Ratings for group 1C10 materials.52 Table 24 Ratings for group 1C11 materials.53 Table 25 Ratings for group 1C12 materials.54 Table 26 Ratings for group 1C13
20、materials.55 Table 27 Ratings for group 1C14 materials.56 Table 28 Ratings For Group 1C15.57 Table 29 Ratings for group 2C1 materials.58 Table 30 Ratings for group 2C2 materials.59 Table 31 Ratings for group 2C3 materials.60 Table 32 Ratings for group 2C4 materials.61 Table 33 Ratings for group 2C5
21、materials.62 Table 34 Ratings for group 2C6 materials.63 Table 35 Ratings for group 2C7 materials.64 Table 36 Ratings for group 2C8 materials.65 Table 37 Ratings for group 1E0 materials.66 Table 38 Ratings for group 1E1 materials.67 Table 39 Ratings for group 2E0 materials.68 Table 40 Ratings for gr
22、oup 3E0 materials.69 Table 41 Ratings for group 3E1 materials.70 Table 42 Ratings for group 4E0 materials.71 Table 43 Ratings for group 5E0 materials.72 Table 44 Ratings for group 6E0 materials.73 Table 45 Ratings for group 6E1 materials.74 Table 46 Ratings for group 7E0 materials.75 Table 47 Rating
23、s for group 7E1 materials.76 Table 48 Ratings for group 7E2 materials.77 Table 49 Ratings for group 7E3 materials.78 Table 50 Ratings for group 8E0 materials.79 Table 51 Ratings for group 8E1 materials.80 Table 52 Ratings for group 8E2 materials.81 Table 53 Ratings for group 8E3 materials.82 Table 5
24、4 Ratings for group 9E0 materials.83 Table 55 Ratings for group 10E0 materials.84 Table 56 Ratings for group 10E1 materials.85 Table 57 Ratings for group 11E0 materials.86 Table 58 Ratings for group 12E0 materials.87 Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 0
25、1:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)4 Table 59 Ratings for group 13E0 materials.88 Table 60 Ratings for group 13E1 materials.89 Table 61 Ratings for group 14E0 materials.90 Table 62 Ratings for group 15E0 materials.91 Table 63 Ratings for group 16E0 materials.92 Annex A(
26、informative)Relationship between DN,NPS,pipe inside diameter Dni and pipe outside diameter.93 Table A.1 Pipe inside and outside diameters Dni and OD.93 Annex B(normative)Radiography procedure and acceptance standards.94 Table B.1 Radiographic acceptance criteria.95 Annex C(normative)Magnetic particl
27、e examination procedure and acceptance standards.96 Annex D(normative)Liquid penetrant examination procedure and acceptance standards.98 Annex E(normative)Ultrasonic examination procedure and acceptance standards.100 Annex F(informative)Methods used for establishing pressure-temperature ratings.101
28、Table F.1 Pressure used to calculate tabulated thickness.101 Table F.2 Constant,c,used to calculate tabulated minimal thickness.101 Table F.3 Ratio for determining pressure/temperature ratings.102 Table F.4 Standard and special Class 4500 ceiling pressures.103 Annex G(normative)Requirement for Limit
29、ed Class valves in sizes DN 65 and smaller.105 Table G.1 Pressure rating index.106 Table G.2 Temperature coefficient.106 Annex H(informative)Material groups.108 Annex ZA(informative)Relationship between this European Standard and the Essential Requirements of EU Directives 97/23/EC.110 Table ZA.1 Co
30、rrespondence between this European Standard and Directive 97/23/EC.110 Bibliography.111 Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)5 Foreword This document(EN 12516-1:2005)has been prepared by Te
31、chnical Committee CEN/TC 69“Industrial valves”,the secretariat of which is held by AFNOR.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 October 2005,and conflicting national standards shall be with
32、drawn at the latest by October 2005.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.For relationship with EU Directive,see informative Annex ZA,which is an integral par
33、t of this document.EN 12516 consists of four parts:Part 1:Tabulation method for steel valve shells;Part 2:Calculation method for steel valve shells;Part 3:Experimental method;Part 4:Calculation method for valve shells in metallic materials other than steel.According to the CEN/CENELEC Internal Regul
34、ations,the national standards organizations of the following countries are bound to implement this European Standard:Austria,Belgium,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,
35、Slovakia,Slovenia,Spain,Sweden,Switzerland and United Kingdom.Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)6 Introduction EN 12516,Industrial Valves Shell Design strength,is in four parts.Parts 1 a
36、nd 2 specify methods for determining the thickness of steel valve shells by tabulation or calculation methods respectively.Part 3 establishes an experimental method for assessing the strength of valve shells in steel,cast iron and copper alloy as a type test by applying an elevated hydrostatic press
37、ure at ambient temperature.Part 4 specifies a method for calculating the thickness for valve shells in metallic material other than steel.The tabulation method,Part 1 is similar in approach to ASME B16.34 in that the designer can look up the required minimum wall thickness dimension of the valve bod
38、y from a table.The internal diameter of the straight pipe,into which the valve is to be mounted,gives the reference dimension from which the tabulated wall thickness of the body are calculated.It applies only to valve bodies,bonnets and covers with essentially circular cross-section.For valve shells
39、 with oval or rectangular shapes and for additional loads,EN 12516-2 should be used(see 8.6).The calculation method,Part 2 is similar in approach to DIN 3840 where the designer is required to calculate the wall thickness for each point on the pressure temperature curve using the allowable stress at
40、that temperature for the material he has chosen(see 2).The allowable stress is calculated from the material properties using the safety factors that are defined in Part 2.The equations in Part 2 consider the valve as a pressure vessel and ensure that there is no excessive deformation or plastic inst
41、ability.Part 1 specifies standard and special pressure temperature ratings for valve shells with bodies having the tabulated thickness.The tabulation method gives one thickness for the body for each Body(see 3.1)or Class designation depending only on the inside diameter,Di,of the body at the point w
42、here the thickness is to be determined.Each tabulated pressure temperature rating is given a reference pressure designation to identify it.The B(Body)pressure designation is used to differentiate it from the PN designation that is used for flanges because the rules for determining the pressure tempe
43、rature ratings for the B and PN designations are different.The thicknesses in Table 10 are calculated using the thin cylinder equation that is also used in Part 2.The allowable stress used in the equation is equal to 118 N/mm2 and the operating pressure varies for each B and Class designation.The eq
44、uation uses a calculation pressure,pc,in N/mm2(e.g.75,86 N/mm2 for Class 4500;5,06 N/mm2 for Class 300 and 3,00 N/mm2 for B 25).Table 1 gives these values for all the tabulated B and Class designations.Table 1 Pressure used to calculate tabulated thickness Designation B 2,5 B 6 B 10 B 16 B 20 B 25 B
45、 40 Class 300 Pressure,pc N/mm2 0,33 0,78 1,30 2,08 2,60 3,00 4,40 5,06 Class Class Class Class Class Designation B 63 B 100 600 900 1500 2500 4500 Pressure,pc N/mm2 6,30 10,00 10,11 15,17 25,29 42,14 75,86 The equation for calculating the thickness is()()constant2,1 118 25,1cmin+=cipD pe(1)For the
46、Class designations,except Class 150,the rules for determining the pressure/temperature ratings are the same for both valve shells and flanges.Hence,only one designation is required.The rules for determining Class 150 flange pressure/temperature ratings are different to those for the valve shell and
47、therefore B 20 is used for the designation of the valve shell.Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)7 The Special Class pressure temperature rating for Class 4500 is calculated using the equ
48、ation:allowable pressure at temperature t=selected Special stress at temperature 000 7500 4 t(2)The Standard Class pressure temperature rating for Class 4500 is calculated using the equation:allowable pressure at temperature 000 7500 4=1,25temp.at stress standard selected tt(3)NOTE In ASME B16.34,7
49、000 times 1,25 is shown as 8750.This appears to show that allowable pressures for standard rating valves are always 80%of the equivalent special rating values.However,the rules for determining the selected stress for standard and special ratings are different.Therefore at low temperatures,the differ
50、ence in allowable pressures is nil or very small and it is only at high temperatures where the full 80%difference can be seen.The selected stresses are applicable for a group of materials and are determined from the material properties of ASME Section IID(see 3)The reason for the down rating of stan
