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1、BRITISH STANDARDBS EN 12516-4:2008Industrial valves Shell design strength Part 4:Calculation method for valve shells manufactured in metallic materials other than steelICS 23.060.01?Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSIBS EN 12516-4:2008Th
2、is British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 May 2008 BSI 2008ISBN 978 0 580 55408 7National forewordThis British Standard is the UK implementation of EN 12516-4:2008.The UK participation in its preparation was entrusted to Technical Comm
3、ittee PSE/7,Industrial valves.A list of organizations represented on this committee can be obtained on request to its secretary.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
4、 cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDateCommentsLicensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 12516-4January 2008ICS 23.060.01 English Versio
5、nIndustrial valves-Shell design strength-Part 4:Calculationmethod for valve shells manufactured in metallic materials otherthan steelRobinetterie industrielle-Rsistance mcanique desenveloppes-Partie 4:Mthode de calcul relative auxenveloppes dappareils de robinetterie en matriauxmtalliques autres que
6、 lacierIndustriearmaturen-Gehusefestigkeit-Teil 4:Berechnungsverfahren fr drucktragende Gehuse vonArmaturen aus anderen metallischen Werkstoffen als StahlThis European Standard was approved by CEN on 14 December 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which sti
7、pulate the conditions 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 CEN Management Centre or to any CEN member.This European Standard ex
8、ists in three 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies
9、 of Austria,Belgium,Bulgaria,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZA
10、TIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre:rue de Stassart,36 B-1050 Brussels 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref.No.EN 12516-4:2008:ELicensed Copy:Manchester ATHENS,University of Manche
11、ster,22/10/2008 12:29,Uncontrolled Copy,(c)BSIEN 12516-4:2008(E)2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Symbols and units.5 4 Interrelation of thickness definitions.6 5 Requirements.6 5.1 General.6 5.2 Materials Cast iron.7 5.2.1 General.7 5.2.2 Calculation parameters.7 5.2.3
12、 Pressure/temperature ratings for cast iron.8 5.2.4 Welding.8 5.3 Materials Wrought copper alloys.9 5.3.1 General.9 5.3.2 Calculation parameters.10 5.3.3 Pressure/temperature ratings for wrought copper alloy.12 5.4 Materials Wrought aluminium alloys.13 5.4.1 Calculation parameters.13 5.4.2 Pressure/
13、temperature ratings for wrought aluminium alloys.13 5.5 Allowable stresses.15 Annex ZA(informative)Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC.16 Bibliography.17 BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2
14、008 12:29,Uncontrolled Copy,(c)BSIEN 12516-4:2008(E)3 Foreword This document(EN 12516-4:2008)has been prepared by Technical 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 o
15、f an identical text or by endorsement,at the latest by July 2008,and conflicting national standards shall be withdrawn at the latest by July 2008.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.CEN shall not be held responsible for
16、 identifying any or all such patent rights.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 97/23.For relationship with EU Directive(s),see informative Annex ZA,which is
17、 an integral part of this document.EN 12516,Industrial valves Shell design strength,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 manufactured in metallic m
18、aterials 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:Austria,Belgium,Bulgaria,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Irela
19、nd,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,Switzerland and the United Kingdom.BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSI标准分享网 w w w.b z f x w.c o mEN 12
20、516-4:2008(E)4 1 Scope This part of EN 12516 specifies the calculation method for valve shells manufactured in metallic materials other than steel.The loadings to be accounted for are in accordance with EN 12516-2.Design methods are in accordance with EN 12516-2,design by formulae according to the r
21、elevant clauses.2 Normative references The following referenced documents are indispensable for the application of this document.For dated references,only the edition cited applies.For undated references,the latest edition of the referenced document(including any amendments)applies.EN 485-2,Aluminiu
22、m and aluminium alloys Sheet,strip and plate Part 2:Mechanical properties EN 573-3:2007,Aluminium and aluminium alloys-Chemical composition and form of wrought products-Part 3:Chemical composition and form of products EN 586-2,Aluminium and aluminium alloys Forgings Part 2:Mechanical properties and
23、additional property requirements EN 754-2,Aluminium and aluminium alloys-Cold drawn rod/bar and tube-Part 2:Mechanical properties EN 755-2,Aluminium and aluminium alloys-Extruded rod/bar,tube and profiles-Part 2:Mechanical properties EN 1092-2:1997,Flanges and their joints Circular flanges for pipes
24、,valves,fittings and accessories,PN-designated Part 2:Cast iron flanges EN 1092-3:2003,Flanges and their joints-Circular flanges for pipes,valves,fittings and accessories,PN designated-Part 3:Copper alloy flanges EN 1092-4:2002,Flanges and their joints-Circular flanges for pipes,valves,fittings and
25、accessories,PN designated-Part 4:Aluminium alloy flanges EN 1561:1997,Founding Grey cast irons EN 1562:1997,Founding Malleable cast irons EN 1563:1997,Founding Spheroidal graphite cast irons EN 1653:1997,Copper and copper alloys Plate,sheet and circles for boilers,pressure vessels and hot water stor
26、age units EN 1759-3:2003,Flanges and their joints Circular flanges for pipes,valves,fittings and accessories,Class designated Part 3:copper alloy flanges EN 1982:1998,Copper and copper alloys Ingots and castings EN 12163:1998,Copper and copper alloys Rod for general purposes EN 12420:1999,Copper and
27、 copper alloys Forgings EN 12449:1999,Copper and copper alloys Seamless,round tubes for general purposes BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSI标准分享网 w w w.b z f x w.c o mEN 12516-4:2008(E)5 EN 12516-2:2004,Industrial valve
28、s Shell design strength Part 2:Calculation method for steel valve shells EN 12982:2000,Industrial valves-End-to-end and centre-to-end dimensions for butt welding end valves ISO 7005-2,Metallic flanges Part 2:Cast iron flanges ISO 7005-3,Metallic flanges Part 3:Copper alloy and composite flanges 3 Sy
29、mbols and units Table 1 Symbols and units SymbolCharacteristic Unit c1 tolerance mm c2 corrosion allowance mm e wall thickness mm f nominal design stress MPa or N/mm2 fd Maximum value of the nominal design stress for normal operation load cases MPa or N/mm2 fd/t nominal design stress for design cond
30、itions at temperature t C MPa or N/mm2 Rm minimum tensile strength N/mm2,MPa Rm/t tensile strength at temperature t C MPa or N/mm2 Rp0,1 minimum 0,1%-proof strength at temperature t C N/mm2,MPa Rp0,2 minimum 0,2%-proof strength N/mm2,MPa Rp0,2/t 0,2%proof strength at temperature t C MPa or N/mm2 Rp1
31、,0/t 1,0%proof strength at temperature t C MPa or N/mm2 TS maximum/minimum allowable temperature C extra thickness due to casting process mm casting tolerance mm BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSI标准分享网 w w w.b z f x w.
32、c o mEN 12516-4:2008(E)6 4 Interrelation of thickness definitions Key ec calculated wall thickness emin minimum wall thickness including corrosion allowance c2 corrosion allowance c1=+manufacturer allowance c1 e0,e1 total wall thickness Figure 1 Interrelation of thicknesses definitions The manufactu
33、rer shall decide the thickness allowance for corrosion or other chemical attack.5 Requirements 5.1 General When materials specified in following tables are not available,other suitable materials may be used when the technical documentation defining the characteristics of these materials has been acc
34、epted in accordance with the requirements for European Approval for Materials(EAM)or Particular Material Appraisal(PMA).The calculation method for a valve shell in materials other than steel shall be in accordance with EN 12516-2.The choice of materials and their parameters shall be taken from the f
35、ollowing clauses of this European Standard.BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSI标准分享网 w w w.b z f x w.c o mEN 12516-4:2008(E)7 5.2 Materials Cast iron 5.2.1 General Materials shall be in accordance with Table 2.Table 2 Al
36、lowable material grades Designation Graphite structure Standard Rm N/mm2 Symbol Number Grey cast iron EN 1561 EN 1561 200a 250 EN-GJL-200 EN-GJL-250 EN-JL1030 EN-JL1040 Spheroidal graphite cast iron EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 EN 1563 350 350 350 4
37、00 400 400 400 400 500 600 700 EN-GJS-350-22-LT EN-GJS-350-22U-LT EN-GJS-350-22-RT EN-GJS-400-18 EN-GJS-400-18-LT EN-GJS-400-18-RT EN-GJS-400-15 EN-GJS-400-18U-LT EN-GJS-500-7 EN-GJS-600-3 EN-GJS-700-2 EN-JS1015 EN-JS1019 EN-JS1014 EN-JS1020 EN-JS1025 EN-JS1024 EN-JS1030 EN-JS1049 EN-JS1050 EN-JS106
38、0 EN-JS1070 Malleable cast iron EN 1562 EN 1562 300 350 EN-GJMB-300-6 EN-GJMB-350-10 EN-JM1110 EN-JM1130 a Grade 200 shall not be used for valves with flanged connections PN 25 or above.Material properties shall be taken from the material standards listed in Table 2.5.2.2 Calculation parameters Calc
39、ulation parameters shall be in accordance with Table 3 to Table 4 Table 3 Strength values for wall thickness up to 60 mm Strength characteristics Rp0,2 at operating temperature in C 20 100 150 200 250 300 350 Material grade Characteristic value N/mm2 EN-GJS-700-2/2U Rp0,2 420 400 390 370 350 320 280
40、 EN-GJS-600-3/3U Rp0,2 370 350 340 320 300 270 220 EN-GJS-500-7/7U Rp0,2 320 300 290 270 250 230 200 ENGJS-400-15/15U Rp0,2 250 240 230 210 200 180 160 EN-GJS-400-18/18U-LT Rp0,2 240 230 220 200 190 170 150 EN-GJS-350-22/22U-LT Rp0,2 220 210 200 180 170 150 140 BS EN 12516-4:2008Licensed Copy:Manche
41、ster ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSIEN 12516-4:2008(E)8 Table 4 Strength values for wall thickness 60 mm up to 200 mm Strength characteristics Rp0,2 at operating temperature in C 20 100 150 200 250 300 350 Material grade Characteristic value N/mm2 EN-GJS-700
42、-2/2U Rp0,2 380 340 330 320 300 280 250 EN-GJS-600-3/3U Rp0,2 340 300 290 280 260 240 190 EN-GJS-500-7/7U Rp0,2 290 250 240 220 200 180 160 ENGJS-400-15/15U Rp0,2 240 220 210 190 180 170 150 EN-GJS-400-18/18U-LT Rp0,2 220 210 200 180 170 160 140 Tensile strength values for grey cast iron shall be ta
43、ken from EN 1561.5.2.3 Pressure/temperature ratings for cast iron 5.2.3.1 The pressure/temperature ratings shall comply with EN 1092-2 or ISO 7005-2.5.2.3.2 The use of valves at temperatures lower than those given in the tables for pressure/temperature ratings of EN 1092-2 is permitted,provided that
44、 their shells and bonnets are manufactured in spheroidal graphite cast iron of grades EN-GJS-350-22-LT or EN-GJS-400-18-LT,see Table 5.For temperatures below the lowest temperature given in the tables of ratings,the maximum allowable pressure shall not be higher than the pressure associated to the l
45、owest temperature in the tables.The lowest design temperature shall not be less than the temperature specified for Charpy impact testing in accordance with EN 1563.Table 5 Allowable material grades for low temperature(LT)design conditions Symbol Number Design temperature limits C EN-GJS-350-22-LT EN
46、-JS 1015-40 TS 350 EN-GJS-350-22U-LTa EN-JS 1019-40 TS 350 EN-GJS-400-18-LT EN-JS 1025-20 TS 350 EN-GJS-400-18U-LTa EN-JS 1049-20 TS 350 a Mechanical properties verified on test pieces from cast-on samples.These grades should be chosen in preference to the material grades with the separately cast sa
47、mples when the unit mass of the casting 2 000 kg or when the relevant wall thickness varies between 30 mm and 200 mm.5.2.4 Welding Repair welding on spheroidal and malleable cast iron may be carried out at the foundry only if it is approved by the customer.Production or repair welding shall not be c
48、arried out on parts manufactured from grey cast iron.BS EN 12516-4:2008Licensed Copy:Manchester ATHENS,University of Manchester,22/10/2008 12:29,Uncontrolled Copy,(c)BSIEN 12516-4:2008(E)9 5.3 Materials Wrought copper alloys 5.3.1 General Materials shall be in accordance with Table 6.Table 6 Allowab
49、le material grades Material number Material symbol EN Material composition in accordance with Temperature limitsa SF-Cu CW024A EN 1653 269 C to 250 C CuZn40 CW509L CR 13388 1 196 C to 250 C CuZn39Pb0,5 CW610N EN 1653 196 C to 250 C CuZn20Al2 CW702R EN 1653 10 C c to 250 Cb CuZn28Sn1 CW706R CR 13388
50、1 269 C to 250 Cb CuZn32Pb2AsFeSic CW709R EN 12163 10 C to 200 C CuZn38Sn1 CW717R EN 1653 10 C c to 250 C CuZn38SnAl CW715R EN 1653 196 C to 250 C CuNi10Fe1Mn CW352H EN 1653 269 C to 300 C CuNi30Mn1Fe CW354H EN 1653 269 C to 350 C CuAl10Ni5Fe4 CW307G EN 1653 10 C c to 250 C CuNi30Fe2Mn2 CW353H CR 13