EN 12516-3:2002
(Main)Valves - Shell design strength - Part 3: Experimental method
Valves - Shell design strength - Part 3: Experimental method
This standard specifies requirements for an experimental method, to prove by type test that the design of shells and their body ends, made in cast iron, steel or copper alloy materials, possess the required pressure containing capability, with an adequate margin of safety. This standard is not applicable to valves designed on the basis of time dependent strength values. e.g. pulsating pressure applications and/or creep range temperatures.
Armaturen - Gehäusefestigkeit - Teil 3: Experimentelles Verfahren
Diese Norm legt die Anforderung für ein experimentelles Verfahren fest, mit dem über eine Typprüfung nachgewiesen werden kann, daß die Auslegung der drucktragenden Gehäuse und deren Endöffnungen, hergestellt aus Gußeisen, Stahl oder Kupferlegierung, die erforderliche Druckfestigkeit mit einer angemessenen Sicherheitsspanne besitzt. Diese Norm ist nicht anwendbar auf Armaturen, die auf der Basis von zeitabhängigen Festigkeitskennwerten ausgelegt sind, z.B. für Anwendung bei Druckstößen und/oder bei Temperaturen im Kriechbereich.
Appareils de robinetterie - Résistance mécanique des enveloppes - Partie 3: Méthode expérimentale
La présente norme spécifie les prescriptions d'une méthode expérimentale desti- née à prouver que des enveloppes et leurs extrémités, fabriquées dans des matériaux tels que fonte, acier, ou alliage de cuivre ont la résistance à la pression exigée avec une marge de sécurité appropriée. Cette norme ne s'applique pas aux appareils de robinetterie conçus sur la base de valeurs de résistance à la rupture fonction du temps, telles que des applications d'une pression pulsatoire et/ou des gammes de température de fluage.
Ventili - Trdnost ohišja - 3. del: Eksperimentalna metoda
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Valves - Shell design strength - Part 3: Experimental methodVentili - Trdnost ohišja - 3. del: Eksperimentalna metodaAppareils de robinetterie - Résistance mécanique des enveloppes - Partie 3: Méthode expérimentaleArmaturen - Gehäusefestigkeit - Teil 3: Experimentelles VerfahrenTa slovenski standard je istoveten z:EN 12516-3:2002SIST EN 12516-3:2003en23.060.01ICS:SLOVENSKI
STANDARDSIST EN 12516-3:200301-julij-2003
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 12516-3October 2002ICS 23.060.01English versionValves - Shell design strength - Part 3: Experimental methodAppareils de robinetterie - Résistance mécanique desenveloppes - Partie 3: Méthode expérimentaleArmaturen - Gehäusefestigkeit - Teil 3: ExperimentellesVerfahrenThis European Standard was approved by CEN on 1 August 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate 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 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2002 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 12516-3:2002 E
Information on the origin of the experimental test factor, C.9Annex ZA (informative)
Clauses of this European Standard addressing essential requirements or otherprovisions of EU Directives.11Bibliography.12
= Cb ´ Xb max ´ Yb(3)Kbc = Cbc ´ Xbc
max ´ Ybc (4)The experimental test pressure pt, exp shall be calculated from the equations :—for the body,pt, exp b/RT = Kb ´ PSRT(5)—for the bonnet/cover,pt, exp bc/RT = Kbc ´ PSRT(6)The lower of the two experimental test pressures calculated in equations (5) or (6) shall be applied. After testing atthis pressure for the minimum test duration (see 6.6), the pressure shall be increased to the higher pressurecalculated in equations (5) and (6). The higher pressure shall be applied for the minimum test duration.As an alternative to testing at both pressures, the test may be conducted using the higher pressure only applied forthe minimum duration.When a component has already been shown, according to any part of EN 12516, to have the required pressurecontaining capability, at an allowable pressure at least equal to that of the shell to be tested, then the experimental testpressure calculated for this component shall not be a
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