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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 23.060.01?Licensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22

2、GMT+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:

3、2005.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 Briti

4、sh 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.T

5、his 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 intern

6、ational/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 pag

7、e,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.DateCommentsLicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:17:22 GMT+00:00 2006,Uncontroll

8、ed Copy,(c)BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12516-1April 2005ICS 23.060.01English versionIndustrial valves-Shell design strength-Part 1:Tabulationmethod for steel valve shellsRobinetterie industrielle-Rsistance mcanique desenveloppes-Partie 1:Mthode tabulaire relative auxenvelopp

9、es dappareils de robinetterie en acierIndustriearmaturen-Gehusefestigkeit-Teil 1:Tabellenverfahren fr drucktragende Gehuse vonArmaturen aus StahlThis European Standard was approved by CEN on 15 March 2005.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c

10、onditions for giving this EuropeanStandard the status of a national standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three

11、official versions(English,French,German).A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria,Belg

12、ium,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIO

13、NEUROPISCHES KOMITEE FR NORMUNGManagement Centre:rue de Stassart,36 B-1050 Brussels 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref.No.EN 12516-1:2005:ELicensed Copy:Institute Of Technology Tallaght,Institute of Technology,Sun Dec 17 01:

14、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 determining pressure/temperature ratings.7 1 Scope.9 2 Normative references.9 3 Terms,definitions and symbols.12 Table 3

15、-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 Minimum wall thickness for socket welding and threaded ends.18 9 Auxiliary connections.20 Table 5 Auxiliary connection size

16、.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 auxiliary connections.22 10 Requirements for special rating.22 Table 9 Sampling criteria for castings produced using sampling m

17、ethod.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 and low alloy steels.39 Table 12 Material groups and temperature limitations for ASTM based high alloy steels.40 Table 1

18、2(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 group 1C3 materials.45 Table 17 Ratings for group 1C4 materials.46 Table 18 Ratings for group 1C5 materials.47 Table 19 Rati

19、ngs 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 Table 20 Ratings for group 1C7 materials.49 Table 21 Ratings for group 1C8 materials.50 Table 22 Ratings for group 1C9

20、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 materials.55 Table 27 Ratings for group 1C14 materials.56 Table 28 Ratings For Group 1C15.57 Table 29 Ratings for group

21、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 materials.62 Table 34 Ratings for group 2C6 materials.63 Table 35 Ratings for group 2C7 materials.64 Table 36 Ratings fo

22、r 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 group 3E0 materials.69 Table 41 Ratings for group 3E1 materials.70 Table 42 Ratings for group 4E0 materials.71 Table 43 Ra

23、tings 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 Ratings for group 7E1 materials.76 Table 48 Ratings for group 7E2 materials.77 Table 49 Ratings for group 7E3 materials.78 Tab

24、le 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 54 Ratings for group 9E0 materials.83 Table 55 Ratings for group 10E0 materials.84 Table 56 Ratings for group 10E1 materi

25、als.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 01:17:22 GMT+00:00 2006,Uncontrolled Copy,(c)BSIEN 12516-1:2005(E)4 Table 59 Ratings for group 13E0 materials.88 Table 60

26、 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(informative)Relationship between DN,NPS,pipe inside diameter Dni and pipe outside diameter.93 Table A.1 Pipe inside and

27、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 particle examination procedure and acceptance standards.96 Annex D(normative)Liquid penetrant examination procedure and accepta

28、nce standards.98 Annex E(normative)Ultrasonic examination procedure and acceptance standards.100 Annex F(informative)Methods used for establishing pressure-temperature ratings.101 Table F.1 Pressure used to calculate tabulated thickness.101 Table F.2 Constant,c,used to calculate tabulated minimal th

29、ickness.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 Limited Class valves in sizes DN 65 and smaller.105 Table G.1 Pressure rating index.106 Table G.2 Temperature coefficient.106

30、 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 Correspondence between this European Standard and Directive 97/23/EC.110 Bibliography.111 Licensed Copy:Institute Of Techn

31、ology 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 Technical Committee CEN/TC 69“Industrial valves”,the secretariat of which is held by AFNOR.This European Standard shall be

32、 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 withdrawn at the latest by October 2005.This document has been prepared under a mandate given to CEN by the European Commiss

33、ion 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 part of this document.EN 12516 consists of four parts:Part 1:Tabulation method for steel valve shells;Part 2:Calculation me

34、thod 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 Regulations,the national standards organizations of the following countries are bound to implement this European Standard:Aus

35、tria,Belgium,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland and United Kingdom.Licensed Copy:Institute Of Technology Tallaght,Institute o

36、f 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 and 2 specify methods for determining the thickness of steel valve shells by tabulation or calculation methods respective

37、ly.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 pressure at ambient temperature.Part 4 specifies a method for calculating the thickness for valve shells in metallic material

38、 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 body from a table.The internal diameter of the straight pipe,into which the valve is to be mounted,gives the reference dime

39、nsion 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 with oval or rectangular shapes and for additional loads,EN 12516-2 should be used(see 8.6).The calculation method,Part

40、 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 that temperature for the material he has chosen(see 2).The allowable stress is calculated from the material properties u

41、sing 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 instability.Part 1 specifies standard and special pressure temperature ratings for valve shells with bodies having the tabul

42、ated 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 where the thickness is to be determined.Each tabulated pressure temperature rating is given a reference pressure designat

43、ion 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 temperature ratings for the B and PN designations are different.The thicknesses in Table 10 are calculated using the thin cyl

44、inder 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 equation 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 fo

45、r 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 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

46、 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()()constant2,111825,1cmin+=cipDpe(1)For the Class designations,except Class 150,the rules for determining the pressure/temperature ratings are the same for both valve

47、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 therefore B 20 is used for the designation of the valve shell.Licensed Copy:Institute Of Technology Tallaght,Institute of T

48、echnology,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 equation:allowable pressure at temperature t=selected Special stress at temperature 00075004t (2)The Standard Class pressure t

49、emperature rating for Class 4500 is calculated using the equation:allowable pressure at temperature 00075004=1,25temp.atstressstandardselectedtt(3)NOTE In ASME B16.34,7 000 times 1,25 is shown as 8750.This appears to show that allowable pressures for standard rating valves are always 80%of the equiv

50、alent special rating values.However,the rules for determining the selected stress for standard and special ratings are different.Therefore at low temperatures,the difference in allowable pressures is nil or very small and it is only at high temperatures where the full 80%difference can be seen.The s