EN 1267:2012

Industrial valves - Test of flow resistance using water as test fluid

This European Standard specifies a method for determining valve pressure loss coefficient and fluid flow coefficient using water as test fluid. This method is suitable
for valves with low zeta values but higher than 0,1 by determining pressure loss, with respect to fluid flow rate and specific gravity, and
for valves with equal inlet and outlet nominal size.
Industrial process control valves are excluded from this European Standard.
NOTE 1   For zeta values above 6, the pressure loss coefficient inaccuracy is higher than the pressure loss caused by the test tubes. It becomes the same configuration of tests as in EN 60534-2-3.
NOTE 2   If using air as test fluid, other standards e.g. EN 60534-2-3 and ISO 6358 should be referred to.

Industriearmaturen - Messung des Strömungswiderstandes mit Wasser als Prüfmedium

Diese Europäische Norm legt ein Verfahren zur Bestimmung der Koeffizienten für Druckverlust und Durch-fluss¬menge von Armaturen fest, wobei Wasser als Prüfmedium verwendet wird. Dieses Ver¬fahren ist geeignet
-   für Armaturen mit niedrigen -Werten, jedoch über 0,1, bei Bestimmung des Druckverlustes in Abhängig-keit vom Durchfluss und vom spezifischen Gewicht des Prüfmediums sowie
-   für Armaturen mit gleichen Nennweiten auf der Ein- und Austrittsseite.
Industriestellgeräte fallen nicht in den Anwendungsbereich dieser Europäischen Norm.
ANMERKUNG 1   Bei Armaturen mit   6 ist die Messunsicherheit des Druckverlustkoeffizienten höher als der durch die Prüfrohre verursachte Druck¬verlust. Dabei entspricht die Prüfkonfiguration EN 60534-2-3.
ANMERKUNG 2   Bei Verwendung von Luft als Prüfmedium sollten andere Normen in Bezug genommen werden, z. B. EN 60534 2-3 und ISO 6358.

Robinetterie industrielle - Essai de résistance à l'écoulement utilisant l'eau comme fluide d'essai

La présente Norme européenne spécifie une méthode de détermination du coefficient de perte de charge et
du coefficient de débit du fluide d’un appareil de robinetterie en utilisant l'eau comme fluide d'essai. Cette
méthode est applicable
- aux appareils de robinetterie à faible coefficient de perte de charge zeta, mais plus grand que 0,1 par
détermination de la perte de charge, en fonction du débit et de la densité du fluide, et
- aux appareils de robinetterie dont les diamètres nominaux d'entrée et de sortie sont identiques.
Les robinets de régulation de procédés industriels sont exclus de la présente Norme européenne.
NOTE 1 Pour les valeurs de zêta supérieures à 6, l'imprécision du coefficient de perte de charge est supérieure à la
perte de charge provoquée par les tubes d'essai. Il en résulte la même configuration d'essai que celle de l'EN 60534-2-3.
NOTE 2 Si l'air est utilisé comme fluide d'essai, il convient que d'autres normes telles que l'EN 60534-2-3 et l'ISO 6358
soient mentionnées.

Industrijski ventili - Preskušanje pretočne upornosti z vodo kot preskusnim medijem

Ta evropski standard določa metodo za ugotavljanje koeficienta izgube tlaka za ventile in koeficienta pretoka tekočine z vodo vode kot preskusno tekočino. Ta metoda je ustrezna za ventile z nizkimi vrednostmi zeta, vendar višjimi od 0,1, tako da se določi izguba tlaka, ob upoštevanju stopnje pretoka tekočine in specifične težnosti, ter za ventile z enako nazivno dovodno in odvodno velikostjo. Ta evropski standard ne zajema regulacijskih ventilov za industrijske procese.

General Information

• Status: Published
• Publication Date: 17-Jan-2012
• Withdrawal Date: 30-Jul-2012
• ICS: 23.060.01 - Valves in general
• Technical Committee: CEN/TC 69 - Industrial valves
• Drafting Committee: CEN/TC 69/WG 1 - Basic standards
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 20-Jun-2023
• Directive: 97/23/EC - Directive 97/23/EC of the European Parliament and of the Council of 29 May 1997 on the approximation of the laws of the Member States concerning pressure equipment
• Mandate: M/071 - Mandate to CEN for standardization in the field of Pressure equipment
• Ref Project: SIST EN 1267:2012 - Industrial valves - Test of flow resistance using water as test fluid

Relations

• Replaces: EN 1267:1999 - Valves - Test of flow resistance using water as test fluid
• Effective Date: 08-Jun-2022

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SUHVNXVQLPPHGLMHPIndustriearmaturen - Messung des Strömungswiderstandes mit Wasser als PrüfmediumRobinetterie industrielle - Essai de résistance à l'écoulement utilisant l'eau comme fluide d'essaiIndustrial valves - Test of flow resistance using water as test fluid23.060.01Ventili na splošnoValves in generalICS:Ta slovenski standard je istoveten z:EN 1267:2012SIST EN 1267:2012en,fr,de01-marec-2012SIST EN 1267:2012SLOVENSKI
STANDARDSIST EN 1267:20001DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1267
January 2012 ICS 23.060.01 Supersedes EN 1267:1999English Version
Industrial valves - Test of flow resistance using water as test fluid
Robinetterie industrielle - Essai de résistance à l'écoulement utilisant l'eau comme fluide d'essai
Industriearmaturen - Messung des Strömungswiderstandes mit Wasser als Prüfmedium This European Standard was approved by CEN on 26 November 2011.
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, 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
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1267:2012: ESIST EN 1267:2012

Lower ζζζζ limit considerations . 18Annex B (informative)
Flow rate and physical phenomena of flow through a valve . 19B.1 General . 19B.2 Normal flow conditions . 20B.3 Cavitation . 21B.4 Flashing (self-vaporizations) . 21Annex C (informative)
Uncertainty on measurement . 22C.1 Introduction . 22C.2 Permissible measurement fluctuations . 22C.2.1 General . 22C.2.2 Direct visual observation of signals delivered by the systems . 22C.2.3 Automatic recording of signals delivered by measurement systems . 23C.2.4 Automatic integration of signals delivered by the measurement systems . 24C.3 Measured value stability on physical quantities . 25C.4 Determining flow rate and pressure loss coefficients in turbulent rating condition . 26Annex D (informative)
Evaluation of uncertainty of flow rate coefficient (Kv) and pressure losses coefficient (ζζζζ) . 27D.1 Generality . 27D.2 Evaluation of measurement uncertainty of the Kv (Cv) . 27SIST EN 1267:2012
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