1、BSI Standards PublicationBS EN 12516-4:2014Industrial valves Shell designstrengthPart 4: Calculation method for valve shellsmanufactured in metallic materials otherthan steelBS EN 12516-4:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12516-4:2014.It super
2、sedes BS EN 12516-4:2008 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PSE/18/1, Industrial valves, steam traps, actuators andsafety devices against excessive pressure - Valves - Basic standards.A list of organizations represented on this committee ca
3、n beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 75906 2ICS 23.060.01Complian
4、ce with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2014.Amendments issued since publicationDate Text affectedBS EN 12516-4:2014EUROPEAN STANDARD NORME EUROPENNE E
5、UROPISCHE NORM EN 12516-4 October 2014 ICS 23.060.01 Supersedes EN 12516-4:2008English Version Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel Robinetterie industrielle - Rsistance mcanique des enveloppes - P
6、artie 4: Mthode de calcul relative aux enveloppes dappareils de robinetterie en matriaux mtalliques autres que lacier Industriearmaturen - Gehusefestigkeit - Teil 4: Berechnungsverfahren fr drucktragende Gehuse von Armaturen aus anderen metallischen Werkstoffen als StahlThis European Standard was ap
7、proved by CEN on 9 August 2014. CEN members are bound to comply with the CEN/CENELEC 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 nationa
8、l standards may be obtained on application to the CEN-CENELEC Management Centre 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 the responsibility of a CEN member into its own language
9、 and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hu
10、ngary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CE
11、NELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12516-4:2014 EBS EN 12516-4:2014EN 12516-4:2014 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Sym
12、bols and units .5 4 Interrelation of thickness definitions .5 5 Requirements .5 5.1 General 5 5.2 Materials Cast iron 5 5.2.1 Allowable grades .5 5.2.2 Strength values 6 5.2.3 Pressure/temperature ratings for cast iron .8 5.2.4 Welding .8 5.3 Materials Wrought copper alloys.8 5.3.1 General 8 5.3.2 S
13、trength values . 10 5.3.3 Pressure/temperature ratings for wrought copper alloy 13 5.4 Materials Wrought aluminium alloys . 13 5.4.1 General . 13 5.4.2 Strength values . 13 5.4.3 Pressure/temperature ratings for wrought aluminium alloys 19 5.5 Allowable stresses 19 5.5.1 Aluminium and aluminium allo
14、ys - wrought materials . 19 5.5.2 Materials other than aluminium . 19 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC (PED) 20 Bibliography . 21 BS EN 12516-4:2014EN 12516-4:2014 (E) 3 Foreword This document (EN 12516-4:2014)
15、 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 of an identical text or by endorsement, at the latest by April 2015 and conflicting natio
16、nal standards shall be withdrawn at the latest by April 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes
17、 EN 12516-4:2008. 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/EC. For relationship with EU Directive 97/23/EC, see informative Annex ZA, which is an integral
18、 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 ma
19、terials other than steel (the present document). The main changes compared to the previous edition are: a) normative references have been updated; b) Clause 4 has been revised; c) additional ductile iron materials were added to Table 2; d) Subclause 5.2.2 has been revised; e) Safety factors in Table
20、 17 have been corrected to be in line with other practicable standards; f) Annex ZA has been revised. 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, Croatia,
21、 Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the U
22、nited Kingdom. BS EN 12516-4:2014EN 12516-4:2014 (E) 4 1 Scope This European Standard 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 12
23、516-2, design by formulae according to the relevant clauses. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the l
24、atest edition of the referenced document (including any amendments) applies. EN 485-2:2013, Aluminium and aluminium alloys Sheet, strip and plate Part 2: Mechanical properties EN 586-2:1994, Aluminium and aluminium alloys Forgings Part 2: Mechanical properties and additional property requirements EN
25、 754-2:2013, Aluminium and aluminium alloys Cold drawn rod/bar and tube Part 2: Mechanical properties EN 755-2:2013, Aluminium and aluminium alloys Extruded rod/bar, tube and profiles Part 2: Mechanical properties EN 1092-2, Flanges and their joints Circular flanges for pipes, valves, fittings and a
26、ccessories, PN designated Part 2: Cast iron flanges EN 1092-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN designated Part 3: Copper alloy flanges EN 1092-4, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, PN design
27、ated Part 4: Aluminium alloy flanges EN 1561:2011, Founding Grey cast irons EN 1562:2012, Founding Malleable cast irons EN 1563:2011, Founding Spheroidal graphite cast irons EN 1653:1997, Copper and copper alloys Plate, sheet and circles for boilers, pressure vessels and hot water storage units EN 1
28、759-3, Flanges and their joints Circular flanges for pipes, valves, fittings and accessories, Class designated Part 3: Copper alloy flanges EN 1982:2008, Copper and copper alloys Ingots and castings EN 12163:2011, Copper and copper alloys Rod for general purposes EN 12420:2014, Copper and copper all
29、oys Forgings EN 12449:2012, Copper and copper alloys Seamless, round tubes for general purposes EN 12516-2:2014, Industrial valves Shell design strength Part 2: Calculation method for steel valve shells BS EN 12516-4:2014EN 12516-4:2014 (E) 5 CEN/TS 13388:2013, Copper and copper alloys Compendium of
30、 compositions and products EN 13445-8:2009, Unfired pressure vessels Part 8: Additional requirements for pressure vessels of aluminium and aluminium alloys ISO 7005-3, Metallic flanges Part 3: Copper alloy and composite flanges 3 Symbols and units Table 1 Symbols and units Symbol Characteristic Unit
31、 f nominal design stress MPa fd/tnominal design stress for design conditions at temperature t C MPa fd/20nominal design stress for design conditions at 20 C MPa Rmminimum tensile strength MPa Rm/20Tensile strength at 20 C MPa Rm/ttensile strength at temperature t C MPa Rp0,1minimum 0,1 %-proof stren
32、gth MPa Rp0,2minimum 0,2 %-proof strength MPa Rp0,2/t0,2 % proof strength at temperature t C MPa Rp1,0/t1,0 % proof strength at temperature t C MPa 4 Interrelation of thickness definitions For interrelation of thickness definitions refer to EN 12516-2:2014, Clause 4. 5 Requirements 5.1 General The c
33、alculation 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 following clauses of this European Standard. 5.2 Materials Cast iron 5.2.1 Allowable grades Materials shall be in accordance
34、with Table 2. BS EN 12516-4:2014EN 12516-4:2014 (E) 6 Table 2 Allowable cast iron material types and grades Cast iron material type EN-standard Designation Symbol Number Grey cast iron EN 1561 EN-GJL-200aEN-GJL-250 5.1300 5.1301 Malleable cast iron EN 1562 EN-GJMB-300-6 EN-GJMB-350-10 5.4100 5.4101
35、Spheroidal graphite cast iron EN 1563 EN-GJS-350-22-LT EN-GJS-350-22-RT EN-GJS-400-18-LT EN-GJS-400-18-RT EN-GJS-400-18 EN-GJS-400-15 EN-GJS-500-7 EN-GJS-600-3 EN-GJS-700-2 5.3100 5.3101 5.3103 5.3104 5.3105 5.3106 5.3200 5.3201 5.3300 aGrade EN-GJL-200 shall not be used for valves with flanged conn
36、ections PN 25 or above. Material properties shall be taken from the standards listed in Table 2. 5.2.2 Strength values Tensile strength values for grey cast iron shall be taken from EN 1561. For the tensile strength value of malleable iron grade EN-GJMB-300-6, to be used in the calculation, 300 MPa
37、shall be taken. The strength values for malleable cast iron grade EN-GJMB-350-10 shall be in accordance with Table 3. Table 3 Malleable cast iron Strength values Material designation Strength characteristics Rp0,2/tat calculation temperature in C 20 100 150 200 250 300 350 MPa EN-GJMB-350-10 200 190
38、 180 160 150 140 120 The strength values for spheroidal graphite cast iron grades shall be in accordance with Table 4, 5 or 6. BS EN 12516-4:2014EN 12516-4:2014 (E) 7 Table 4 Spheroidal graphite cast iron Strength values for wall thickness up to 30 mm Material designation Strength characteristics Rp
39、0,2/tat calculation temperature in C 20 100 150 200 250 300 350 MPa EN-GJS-350-22 LT 220 210 200 180 170 150 140 EN-GJS-350-22 RT 220 210 200 180 170 150 140 EN-GJS-400-18 LT 240 230 220 200 190 170 150 EN-GJS-400-18 RT 250 240 230 210 200 180 160 EN-GJS-400-18 250 240 230 210 200 180 160 EN-GJS-400
40、-15 250 240 230 210 200 180 160 EN-GJS-500-7 320 300 290 270 250 230 200 EN-GJS-600-3 370 350 340 320 300 270 220 EN-GJS-700-2 420 400 390 370 350 320 280 Table 5 Spheroidal graphite cast iron Strength values for wall thickness 30 mm up to 60 mm Material designation Strength characteristics Rp0,2/ta
41、t calculation temperature in C 20 100 150 200 250 300 350 MPa EN-GJS-350-22 LT 210 200 190 170 160 145 130 EN-GJS-350-22 RT 220 210 200 180 170 150 140 EN-GJS-400-18 LT 230 220 210 190 180 165 145 EN-GJS-400-18 RT 250 240 230 210 200 180 160 EN-GJS-400-18 250 240 230 210 200 180 160 EN-GJS-400-15 25
42、0 240 230 210 200 180 160 EN-GJS-500-7 300 275 265 245 225 205 180 EN-GJS-600-3 360 325 315 300 280 255 205 EN-GJS-700-2 400 370 360 345 325 300 265 BS EN 12516-4:2014EN 12516-4:2014 (E) 8 Table 6 Spheroidal graphite cast iron Strength values for wall thickness 60 mm up to 200 mm Material designatio
43、n Strength characteristics Rp0,2/tat calculation temperature in C 20 100 150 200 250 300 350 MPa EN-GJS-350-22 LT 200 190 180 160 150 140 120 EN-GJS-350-22 RT 200 190 180 160 150 140 120 EN-GJS-400-18 LT 220 210 200 200 170 160 140 EN-GJS-400-18 RT 240 220 210 210 180 170 150 EN-GJS-400-18 240 220 2
44、10 210 180 170 150 EN-GJS-400-15 240 220 210 210 180 170 150 EN-GJS-500-7 290 250 240 220 200 180 160 EN-GJS-600-3 340 300 290 280 260 240 190 EN-GJS-700-2 380 340 330 320 300 280 250 5.2.3 Pressure/temperature ratings for cast iron 5.2.3.1 The pressure/temperature ratings shall comply with EN 1092-
45、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 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 7. For temp
46、eratures below the lowest temperature given in the tables of ratings, the maximum allowable pressure shall not be higher than the pressure associated to the lowest temperature in the tables. The lowest calculation temperature shall not be less than the temperature specified for Charpy impact testing
47、 in accordance with EN 1563. Table 7 Allowable material grades for low temperature (LT) design conditions Symbol Number Temperature limits EN-GJS-350-22-LT 5.3100 - 40 C to 350 C EN-GJS-400-18-LT 5.3103 - 20 C to 350 C 5.2.4 Welding Repair welding on spheroidal and malleable cast iron may be carried
48、 out at the foundry only if it is approved by the customer. Production or repair welding shall not be carried out on parts manufactured from grey cast iron. 5.3 Materials Wrought copper alloys 5.3.1 General Materials shall be in accordance with Table 8. BS EN 12516-4:2014EN 12516-4:2014 (E) 9 Table
49、8 Allowable material grades Material symbol Material number Material composition in accordance with Temperature limitsaEN SF-Cu CW024A EN 1653 269 C to 250 C CuZn40 CW509L CEN/TS 13388 196 C to 250 C CuZn39Pb0,5 CW610N EN 1653 196 C to 250 C CuZn20Al2 CW702R EN 1653 10 C cto 250 CbCuZn28Sn1 CW706R CEN/TS 13388 269 C to 250 CbCuZn32Pb2AsFeSicCW709R EN 12163 10 C to 200 C CuZn38Sn1 CW717R EN 1653 10 C cto 250 C CuZn38SnAl CW715
