EN 12516-4:2014

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

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.
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Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC (PED) . 20 Bibliography . 21
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

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

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
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