SIST EN 12516-4:2015
(Main)Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel
Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel
Addition of cast iron grades which are missing. Addition of safety factor for malleable cast iron. Correction of safety factors for ferritic grades. Consideration of the comments from CEN Consultant on PED on previous edition.
Industriearmaturen - Gehäusefestigkeit - Teil 4: Berechnungsverfahren für drucktragende Gehäuse von Armaturen aus anderen metallischen Werkstoffen als Stahl
Dieser Teil der EN 12516 legt das Berechnungsverfahren für drucktragende Gehäuse von Armaturen aus anderen metallischen Werkstoffen als Stahl fest. Die zu berücksichtigenden Beanspruchungen müssen EN 12516-2 entsprechen. Konstruktionsverfahren müssen EN 12516-2 und die Konstruktionsberechnung den jeweiligen zutreffenden Abschnitten entsprechen.
Robinetterie industrielle - Résistance mécanique des enveloppes - Partie 4: Méthode de calcul relative aux enveloppes d'appareils de robinetterie en matériaux métalliques autres que l'acier
La présente partie de l'EN 12516 spécifie la méthode de calcul relative aux enveloppes d'appareils de
robinetterie en matériaux métalliques autres que l’acier. Les cas de charge à prendre en compte sont
conformes à l’EN 12516-2.
Les méthodes de conception sont conformes à l’EN 12516-2, pour la conception par formules selon les
paragraphes appropriés.
Industrijski ventili - Trdnost ohišja - 4. del: Metoda za izračun ohišij ventilov iz nejeklenih kovinskih materialov
Dodani so manjkajoči razredi litega železa. Dodan je varnostni faktor za temprano železovo litino. Popravljeni so varnostni faktorji za feritne razrede. Upoštevani so komentarji svetovalca CEN glede direktive o tlačni opremi (PED) v prejšnji izdaji.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Industriearmaturen - Gehäusefestigkeit - Teil 4: Berechnungsverfahren für drucktragende Gehäuse von Armaturen aus anderen metallischen Werkstoffen als StahlRobinetterie industrielle - Résistance mécanique des enveloppes - Partie 4: Méthode de calcul relative aux enveloppes d'appareils de robinetterie en matériaux métalliques autres que l'acierIndustrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 12516-4:2014SIST EN 12516-4:2015en,fr,de01-januar-2015SIST EN 12516-4:2015SLOVENSKI
STANDARDSIST EN 12516-4:20081DGRPHãþD
SIST EN 12516-4:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE 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 - Résistance mécanique des enveloppes - Partie 4: Méthode de calcul relative aux enveloppes d'appareils de robinetterie en matériaux métalliques autres que l'acier
Industriearmaturen - Gehäusefestigkeit - Teil 4: Berechnungsverfahren für drucktragende Gehäuse von Armaturen aus anderen metallischen Werkstoffen als StahlThis European Standard was approved 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 national 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 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, Hungary, 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
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC 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 ESIST EN 12516-4:2015
EN 12516-4:2014 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Symbols 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 Strength 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 alloys - 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
SIST EN 12516-4:2015
EN 12516-4:2014 (E) 3 Foreword This document (EN 12516-4:2014) 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 national 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 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 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 materials 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 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, 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 United Kingdom. SIST EN 12516-4:2015
EN 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 12516-2, 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 latest 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 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 accessories, 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 designated — 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 1759-3, 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 alloys — 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 SIST EN 12516-4:2015
EN 12516-4:2014 (E) 5 CEN/TS 13388:2013, Copper and copper alloys — Compendium of 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 f nominal design stress MPa fd/t nominal design stress for design conditions at temperature t °C MPa fd/20 nominal design stress for design conditions at 20 °C MPa Rm minimum tensile strength MPa Rm/20 Tensile strength at 20 °C MPa Rm/t tensile strength at temperature t °C MPa Rp0,1 minimum 0,1 %-proof strength MPa Rp0,2 minimum 0,2 %-proof strength MPa Rp0,2/t 0,2 % — proof strength at temperature t °C MPa Rp1,0/t 1,0 % — 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 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 following clauses of this European Standard. 5.2 Materials — Cast iron 5.2.1 Allowable grades Materials shall be in accordance with Table 2. SIST EN 12516-4:2015
EN 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-200a EN-GJL-250 5.1300 5.1301 Malleable cast iron EN 1562 EN-GJMB-300-6 EN-GJMB-350-10 5.4100 5.4101 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 a Grade EN-GJL-200 shall not be used for valves with flanged connections 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 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/t at calculation temperature in °C 20 100 150 200 250 300 350 MPa EN-GJMB-350-10 200 190 180 160 150 140 120
The strength values for spheroidal graphite cast iron grades shall be in accordance with Table 4, 5 or 6. SIST EN 12516-4:2015
EN 12516-4:2014 (E) 7 Table 4 — Spheroidal graphite cast iron — Strength values for wall thickness up to 30 mm Material designation Strength characteristics Rp0,2/t at 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-400-15 250 240 230 210 200 180 160 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/t at 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-400-15 250 240 230 210 200 180 160 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
SIST EN 12516-4:2015
EN 12516-4:2014 (E) 8 Table 6 — Spheroidal graphite cast iron — Strength values for wall thickness > 60 mm up to 200 mm Material designation Strength characteristics Rp0,2/t at 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-400-18 240 220 210 210 180 170 150 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 1092-2. 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 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 lowest temperature in the tables. The lowest calculation temperature shall not be less than the temperature specified for Charpy impact testing 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 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. SIST EN 12516-4:2015
EN 12516-4:2014 (E) 9 Table 8 — Allowable material g
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