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IEC 60534-2-1-ed.2.0
Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions
STANDARD published on 30.3.2011
The information about the standard:
Designation standards: IEC 60534-2-1-ed.2.0
Publication date standards: 30.3.2011
SKU: NS-410547
The number of pages: 111
Approximate weight : 364 g (0.80 lbs)
Country: International technical standard
Category: Technical standards IEC
The category - similar standards:
Pressure regulatorsIndustrial process measurement and control
Annotation of standard text IEC 60534-2-1-ed.2.0 :
IEC 60534-2-1:2011 includes equations for predicting the flow of compressible and incompressible fluids through control valves. The equations for incompressible flow are based on standard hydrodynamic equations for Newtonian incompressible fluids. They are not intended for use when non-Newtonian fluids, fluid mixtures, slurries or liquid-solid conveyance systems are encountered. The equations for incompressible flow may be used with caution for non-vaporizing multi-component liquid mixtures. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. It includes the following significant technical changes with respect to the previous edition: - the same fundamental flow model, but changes the equation framework to simplify the use of the standard by introducing the notion of ?psizing; - changes to the non-turbulent flow corrections and means of computing results; - multi-stage sizing as an Annex. The contents of the corrigendum of April 2015 have been included in this copy. La CEI 60534-2-1:2011 comprend des equations permettant de prevoir le debit de fluides compressibles et incompressibles dans les vannes de regulation. Les equations relatives a lecoulement des fluides incompressibles sont fondees sur les equations de base applicables aux fluides newtoniens incompressibles. Elles ne sont pas destinees a etre utilisees pour des fluides non newtoniens, des melanges de fluides, des boues ou des systemes transportant des particules solides en suspension dans un liquide. Les equations relatives a lecoulement des fluides incompressibles peuvent etre utilisees, mais avec prudence, pour les melanges liquides a composants multiples non volatils. Cette deuxieme edition annule et remplace la premiere edition parue en 1998. Cette edition constitue une revision technique. Elle inclut les modifications techniques majeures suivantes par rapport a ledition precedente: - les memes modeles fondamentaux de debit mais modifie lorganisation des equations pour simplifier lutilisation de la norme en introduisant la notion de ?pdim; - des changements dans les corrections pour les fluides non turbulents et dans les moyens dobtention des resultats; - le passage des calculs multi-etages en Annexe. Le contenu du corrigendum davril 2015 a ete pris en consideration dans cet exemplaire.
These corrections apply to this standard:
IEC 60534-2-1-ed.2.0/Cor.1
Correction
Show all technical information.
Corrigendum 1 - Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions
(Corrigendum 1 - Vannes de regulation des processus industriels - Partie 2-1: Capacite d´ecoulement - Equations de dimensionnement pour l´ecoulement des fluides dans les conditions d´installation)
Correction published on 23.4.2015
Selected format:Show all technical information.
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