EN 60534-2-5:2003

Industrial-process control valves - Part 2-5: Flow capacity - Sizing equations for fluid flow through multistage control valves with interstage recovery

Gives equations for predicting the flow of compressible and incompressible fluids through multistage control valves. Is based on standard hydrodynamic equations for Newtonian incompressible fluids. Is applicable only to those designs of multistage multipath control valves and multistage single path control valves.

Stellventile für die Prozessregelung - Teil 2-5: Durchflusskapazität - Bemessungsgleichungen für Fluide durch Mehrstufenregelventile mit Druckrückgewinn zwischen den Stufen

Vannes de régulation des processus industriels - Partie 2-5: Capacité d'écoulement - Equations de dimensionnement pour l'écoulement des fluides dans les vannes de régulation multi-étagées avec récupération entre étages

Fournit les équations permettant de prédire le débit de fluides compressibles et incompressibles dans les vannes de régulation multi-étagées. Est fondée sur les équations de base pour les fluides newtoniens incompressibles. S'applique uniquement aux conceptions de vannes de régulation multi-étagées à chemins multiples et multi-étagées à chemin unique.

Industrial-process control valves - Part 2-5: Flow capacity - Sizing equations for fluid flow through multistage control valves with interstage recovery

General Information

• Status: Withdrawn
• Publication Date: 13-Oct-2003
• Withdrawal Date: 30-Sep-2006
• ICS: 23.060.40 - Pressure regulators
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: CLC/TC 65X - Industrial-process measurement, control and automation
• Drafting Committee: IEC/SC 65B - IEC_SC_65B
• Parallel Committee: IEC/SC 65B - IEC_SC_65B
• Ref Project: SIST EN 60534-2-5:2004 - Industrial-process control valves -- Part 2-5: Flow capacity - Sizing equations for fluid flow through multistage control valves with interstage recovery

Standards Content (Sample)

SLOVENSKI SIST EN 60534-2-5:2004

STANDARD
marec 2004
Industrial-process control valves - Part 2-5: Flow capacity - Sizing equations for fluid
flow through multistage control valves with interstage recovery
ICS 23.060.40; 25.040.40 Referenčna številka
SIST EN 60534-2-5:2004(en)
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

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EUROPEAN STANDARD EN 60534-2-5
NORME EUROPÉENNE
EUROPÄISCHE NORM October 2003

ICS 23.060.40 ; 25.040.40


English version


Industrial-process control valves
Part 2-5: Flow capacity –
Sizing equations for fluid flow
through multistage control valves
with interstage recovery
(IEC 60534-2-5:2003)


Vannes de régulation des processus Stellventile für die Prozessregelung
industriels Teil 2-5: Durchflusskapazität –
Partie 2-5: Capacité d'écoulement – Bemessungsgleichungen für Fluide
Equations de dimensionnement durch Mehrstufenregelventile
pour l'écoulement des fluides mit Druckrückgewinn
dans les vannes de régulation zwischen den Stufen
multi-étagées avec récupération (IEC 60534-2-5:2003)
entre étages
(CEI 60534-2-5:2003)


This European Standard was approved by CENELEC on 2003-10-01. CENELEC 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 Central Secretariat or to any CENELEC 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 CENELEC member into its own language and
notified to the Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels


© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 60534-2-5:2003 E

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EN 60534-2-5:2003 - 2 -
Foreword
The text of document 65B/488/FDIS, future edition 1 of IEC 60534-2-5, prepared by SC 65B, Devices,
of IEC TC 65, Industrial-process measurement and control, was submitted to the IEC-CENELEC
parallel vote and was approved by CENELEC as EN 60534-2-5 on 2003-10-01.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-10-01

Annexes designated "normative" are part of the body of the standard.
Annexes designated "informative" are given for information only.
In this standard, annex ZA is normative and annexes A and B are informative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60534-2-5:2003 was approved by CENELEC as a
European Standard without any modification.
__________

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- 3 - EN 60534-2-5:2003
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60534-1 1987 Industrial-process control valves EN 60534-1 1993
Part 1: Control valve terminology and
general considerations

IEC 60534-2-1 1998 Part 2-1: Flow capacity - Sizing EN 60534-2-1 1998
equations for fluid flow under installed
conditions

IEC 60534-2-3 1997 Part 2-3: Flow capacity - Test EN 60534-2-3 1998
procedures

...