SIST EN 60534-2-3:2016
(Main)Industrial-process control valves -- Part 2-3: Flow capacity - Test procedures (IEC 60534-2-3:2015)
Industrial-process control valves -- Part 2-3: Flow capacity - Test procedures (IEC 60534-2-3:2015)
This part of IEC 60534 is applicable to industrial-process control valves and provides the flow
capacity test procedures for determining the following variables used in the equations given in
IEC 60534-2-1:
a) flow coefficient C;
b) liquid pressure recovery factor without attached fittings FL;
c) combined liquid pressure recovery factor and piping geometry factor of a control valve
with attached fittings FLP;
d) piping geometry factor FP;
e) pressure differential ratio factors xT and xTP;
f) valve style modifier Fd;
g) Reynolds number factor FR.
Stellventile für die Prozessregelung - Teil 2-3: Durchflusskapazität - Prüfverfahren (IEC 60534-2-3:2015)
Vannes de régulation des processus industriels - Partie 2-3: Capacité d'écoulement - Procédures d'essais (IEC 60534-2-3:2015)
L’IEC 60534-2-3:2015 est applicable aux vannes de régulation des processus industriels. Elle donne les procédures d'essai relatives à la capacité d'écoulement pour la détermination des variables énoncées ci-après, utilisées dans les équations de
l’IEC 60534-2-1:
a) coefficient de débit C;
b) facteur de récupération de pression du liquide sans raccords adjacents FL;
c) facteur combiné de récupération de pression du liquide et de géométrie de la tuyauterie d’une vanne de régulation avec raccords adjacents FLP;
d) facteur résultant de la géométrie de la tuyauterie FP;
e) facteurs de rapport de pression différentielle xT et xTP;
f) coefficient de correction générique de vanne Fd;
g) facteur du nombre de Reynolds FR.
Regulacijski ventili za industrijske procese - 2-3. del: Kapaciteta pretoka - Preskusni postopki (IEC 60534-2-3:2015)
Ta del standarda IEC 60534 se uporablja za regulacijske ventile za industrijske procese in podaja preskusne postopke kapacitete pretoka za naslednje spremenljivke, ki se uporabljajo v enačbi, podani v standardu IEC 60534-2-1:
a) koeficient pretoka C;
b) faktor rekuperacije tlaka tekočine brez pritrjenih fitingov FL;
c) kombiniran faktor rekuperacije tlaka tekočine in faktor geometrije cevi regulacijskega ventila
s pritrjenimi fitingi FLP;
d) faktor geometrije cevi FP;
e) faktorja razmerja med diferenčnim tlakom xT in xTP;
f) modifikator sloga ventila Fd;
g) faktor Reynoldsovega števila FR.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 60534-2-3:2016
01-julij-2016
1DGRPHãþD
SIST EN 60534-2-3:1998
Regulacijski ventili za industrijske procese - 2-3. del: Kapaciteta pretoka -
Preskusni postopki (IEC 60534-2-3:2015)
Industrial-process control valves -- Part 2-3: Flow capacity - Test procedures (IEC 60534
-2-3:2015)
Stellventile für die Prozessregelung - Teil 2-3: Durchflusskapazität - Prüfverfahren (IEC
60534-2-3:2015)
Vannes de régulation des processus industriels - Partie 2-3: Capacité d'écoulement -
Procédures d'essais (IEC 60534-2-3:2015)
Ta slovenski standard je istoveten z: EN 60534-2-3:2016
ICS:
23.060.40 7ODþQLUHJXODWRUML Pressure regulators
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
SIST EN 60534-2-3:2016 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60534-2-3:2016
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SIST EN 60534-2-3:2016
EUROPEAN STANDARD EN 60534-2-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2016
ICS 23.060.40; 25.040.40 Supersedes EN 60534-2-3:1998
English Version
Industrial-process control valves -
Part 2-3: Flow capacity - Test procedures
(IEC 60534-2-3:2015)
Vannes de régulation des processus industriels - Stellventile für die Prozessregelung -
Partie 2-3: Capacité d'écoulement - Procédures d'essais Teil 2-3: Durchflusskapazität - Prüfverfahren
(IEC 60534-2-3:2015) (IEC 60534-2-3:2015)
This European Standard was approved by CENELEC on 2016-01-20. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60534-2-3:2016 E
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SIST EN 60534-2-3:2016
EN 60534-2-3:2016
European foreword
The text of document 65B/1025/FDIS, future edition 3 of IEC 60534-2-3, prepared by
SC 65B “Measurement and control devices” of IEC/TC 65 “Industrial-process measurement, control
and automation" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN 60534-2-3:2016.
The following dates are fixed:
• latest date by which the document has to be (dop) 2016-10-20
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2019-01-20
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60534-2-3:1998.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60534-2-3:2015 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60751:2008 NOTE Harmonized as EN 60751:2008 (not modified).
2
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SIST EN 60534-2-3:2016
EN 60534-2-3:2016
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu
Publication Year Title EN/HD Year
IEC 60534-1 - Industrial-process control valves - EN 60534-1 -
Part 1: Control valve terminology and
general considerations
IEC 60534-2-1 2011 Industrial-process control valves - EN 60534-2-1 2011
Part 2-1: Flow capacity - Sizing equations
for fluid flow under installed conditions
IEC 60534-8-2 - Industrial-process control valves - EN 60534-8-2 -
Part 8-2: Noise considerations - Laboratory
measurement of noise generated by
hydrodynamic flow through control valves
IEC 61298-1 - Process measurement and control devices EN 61298-1 -
- General methods and procedures for
evaluating performance -
Part 1: General considerations
IEC 61298-2 - Process measurement and control devices EN 61298-2 -
- General methods and procedures for
evaluating performance -
Part 2: Tests under reference conditions
3
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SIST EN 60534-2-3:2016
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SIST EN 60534-2-3:2016
IEC 60534-2-3
®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
colour
inside
Industrial-process control valves –
Part 2-3: Flow capacity – Test procedures
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 23.060.40; 25.040.40 ISBN 978-2-8322-3055-8
Warning! Make sure that you obtained this publication from an authorized distributor.
® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 7 ----------------------
SIST EN 60534-2-3:2016
– 2 – IEC 60534-2-3:2015 © IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols . 7
5 Test system . 8
5.1 Test specimen . 8
5.2 Test section . 8
5.3 Throttling valves . 9
5.4 Flow measurement . 10
5.5 Pressure taps . 10
5.6 Pressure measurement . 10
5.7 Temperature measurement . 10
5.8 Valve travel . 11
5.9 Installation of test specimen . 11
6 Accuracy of tests . 12
7 Test fluids . 12
7.1 Incompressible fluids . 12
7.2 Compressible fluids . 12
8 Test procedure for incompressible fluids . 12
8.1 Test procedure for flow coefficient C . 12
8.2 Test procedure for liquid pressure recovery factor F and combined liquid
L
pressure recovery factor and piping geometry factor F . 14
LP
8.3 Test procedure for piping geometry factor F . 15
p
8.4 Test procedure for liquid critical pressure ratio factor F . 15
F
8.5 Test procedure for Reynolds number factor F for incompressible flow . 15
R
8.6 Test procedure for valve style modifier F . 15
d
9 Data evaluation procedure for incompressible fluids . 16
9.1 Non-choked flow . 16
9.2 Choked flow . 16
9.3 Calculation of flow coefficient C . 17
9.4 Calculation of liquid pressure recovery factor F and the combined liquid
L
pressure recovery factor and piping geometry factor F . 17
LP
9.5 Calculation of piping geometry factor F . 18
P
9.6 Calculation of liquid critical pressure ratio factor F . 18
F
9.7 Calculation of Reynolds number factor F . 18
R
9.8 Calculation of valve style modifier F . 18
d
10 Test procedure for compressible fluids . 19
10.1 Test procedure for flow coefficient C . 19
10.2 Test procedure for pressure differential ratio factors x and x . 20
T TP
10.3 Test procedure for piping geometry factor F . 21
p
10.4 Test procedure for Reynolds number factor F . 22
R
10.5 Test procedure for valve style modifier F . 22
d
10.6 Test procedure for small flow trim . 22
11 Data evaluation procedure for compressible fluids . 23
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SIST EN 60534-2-3:2016
IEC 60534-2-3:2015 © IEC 2015 – 3 –
11.1 Flow equation . 23
11.2 Calculation of flow coefficient C . 23
11.3 Calculation of pressure differential ratio factor x . 23
T
11.4 Calculation of pressure differential ratio factor x . 24
TP
11.5 Calculation of piping geometry factor F . 24
p
11.6 Calculation of Reynolds number factor F for compressible fluids . 24
R
11.7 Calculation of valve style modifier F . 24
d
11.8 Calculation of flow coefficient C for small flow trim . 24
Annex A (normative) Typical examples of test specimens showing appropriate
pressure tap locations . 26
Annex B (informative) Engineering data . 28
Annex C (informative) Derivation of the valve style modifier, F . 31
d
Annex D (informative) Laminar flow test discussion. 35
Annex E (informative) Long form F test procedure . 36
L
E.1 General . 36
E.2 Test procedure . 36
E.3 Graphical data reduction . 36
Annex F (informative) Calculation of F to help determine if pipe/valve port diameters
P
are adequately matched . 39
Bibliography . 41
Figure 1 – Basic flow test system . 8
Figure 2 – Test section piping requirements . 9
Figure 3 – Recommended pressure tap connection . 11
Figure A.1 – Typical examples of test specimens showing appropriate pressure tap
locations . 27
Figure B.1 – Dynamic viscosity of water . 28
Figure C.1 – Single seated, parabolic plug (flow tending to open) . 34
Figure C.2 – Swing-through butterfly valve . 34
Figure E.1 – Typical flow results . 37
Table 1 – Test specimen alignment . 11
Table 2 – Minimum inlet absolute test pressure in kPa (bar) as related to F and ∆p . 13
L
Table 3 – Numerical constants N . 25
Table B.1 – Properties for water . 28
Table B.2 – Properties of air . 29
Table B.3 – Test section piping . 30
Table C.1 – Numerical constant, N . 34
Table F.1 – Tabulated values of F if upstream and downstream pipe the same size . 40
P
Table F.2 – Tabulated values of F if downstream pipe larger than valve . 40
P
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SIST EN 60534-2-3:2016
– 4 – IEC 60534-2-3:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INDUSTRIAL-PROCESS CONTROL VALVES –
Part 2-3: Flow capacity – Test procedures
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60534-2-3 has been prepared by subcommittee 65B: Measurement
and control devices, of IEC technical committee 65: Industrial-process measurement, control
and automation.
The third edition cancels and replaces the second edition published in 1997, of which it
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Addition of informative Annexes B, C, D, E and F.
b) Organizational and formatting changes were made to group technically related subject
matter.
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SIST EN 60534-2-3:2016
IEC 60534-2-3:2015 © IEC 2015 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
65B/1025/FDIS 65B/1028/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60534 series, published under the general title Industrial-process
control valves, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
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SIST EN 60534-2-3:2016
– 6 – IEC 60534-2-3:2015 © IEC 2015
INDUSTRIAL-PROCESS CONTROL VALVES –
Part 2-3: Flow capacity – Test procedures
1 Scope
This part of IEC 60534 is applicable to industrial-process control valves and provides the flow
capacity test procedures for determining the following variables used in the equations given in
IEC 60534-2-1:
a) flow coefficient C;
b) liquid pressure recovery factor without attached fittings F ;
L
c) combined liquid pressure recovery factor and piping geometry factor of a control valve
with attached fittings F ;
LP
d) piping geometry factor F ;
P
e) pressure differential ratio factors x and x ;
T TP
f) valve style modifier F ;
d
g) Reynolds number factor F .
R
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60534-1, Industrial-process control valves – Part 1: Control valve terminology and
general considerations
IEC 60534-2-1:2011, Industrial-process control valves – Part 2-1: Flow capacity – Sizing
equations for fluid flow under installed conditions
IEC 60534-8-2, Industrial-process control valves – Part 8-2: Noise considerations –
Laboratory measurement of noise generated by hydrodynamic flow through control valves
IEC 61298-1, Process measurement and control devices – General methods and procedures
for evaluating performance – Part 1: General considerations
IEC 61298-2, Process measurement and control devices – General methods and procedures
for evaluating performance – Part 2: Tests under reference conditions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60534-1,
IEC 60534-2-1, IEC 61298-1, and IEC 61298-2 apply.
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SIST EN 60534-2-3:2016
IEC 60534-2-3:2015 © IEC 2015 – 7 –
4 Symbols
Symbol Description Unit
C Flow coefficient (K , C ) Various (see IEC 60534-1)
v v
C Flow coefficient at rated travel Various (see IEC 60534-1)
R
d Nominal valve size (DN) mm
F Valve style modifier 1
d
F Liquid critical pressure ratio factor 1
F
F Liquid pressure recovery factor of a control valve without attached 1
L
fittings
F Combined liquid pressure recovery factor and piping geometry factor of 1
LP
a control valve with attached fittings
F Piping geometry factor 1
P
F Reynolds number factor 1
R
F Specific heat ratio factor 1
γ
M Molecular mass of flowing fluid kg/kmol
N Numerical constants (see Table 3) Various (see Note 1)
p Thermodynamic critical pressure kPa or bar (see Note 2)
c
p Vapour pressure of liquid at inlet temperature kPa or bar
v
p Inlet absolute static pressure measured at the upstream pressure tap kPa or bar
1
p Outlet absolute static pressure measured at the downstream pressure kPa or bar
2
tap
Differential pressure (p – p ) between upstream and downstream kPa or bar
∆p
1 2
pressure taps
Maximum pressure differential kPa or bar
∆p
max
kPa or bar
∆p Maximum effective ∆p without attached fittings
max(L)
kPa or bar
∆p Maximum effective ∆p with attached fittings
max(LP)
3
Q Volumetric flow rate m /h (see Note 3)
3
Q Maximum volumetric flow rate (choked flow conditions) m /h
max
3
Q Maximum volumetric flow rate for incompressible fluids (choked flow m /h
max(L)
conditions without attached fittings)
3
Q Maximum volumetric flow rate for incompressible fluids (choked flow m /h
max(LP)
conditions with attached fittings)
3
Q Maximum volumetric flow rate for compressible fluids (choked flow m /h
max(T)
conditions without attached fittings)
3
Q Maximum volumetric flow rate for compressible fluids (choked flow m /h
max(TP)
conditions with attached fittings)
Re Valve Reynolds number 1
v
T Inlet absolute temperature K
1
t Reference temperature for standard conditions
°C
s
X 1
Ratio of pressure differential to inlet absolute pressure (∆p/p )
1
x Pressure differential ratio factor of a control valve without attached 1
T
fittings for choked flow
x Pressure differential ratio factor of a control valve with attached fittings 1
TP
for choked flow
Y Expansion factor 1
Z Compressibility factor (Z = 1 for gases that exhibit ideal gas behaviour) 1
Specific heat ratio 1
γ
2
ν
Kinematic viscosity m /s (see Note 4)
ζ Velocity head loss coefficient of a reducer, expander or other fitting 1
attached to a control valve
1
ρ /ρ Relative density (ρ /ρ = 1 for water at 15 °C)
1 o 1 o
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SIST EN 60534-2-3:2016
– 8 – IEC 60534-2-3:2015 © IEC 2015
NOTE 1 To determine the units for the numerical constants, dimensional analysis may be performed on the
appropriate equations using the units given in Table 1.
2 5
NOTE 2 1 bar = 10 kPa = 10 Pa.
3
NOTE 3 Compressible fluid volumetric flow rates in m /h, identified by the symbol Q, refer to standard
conditions which are an absolute pressure of 101,325 kPa (1,013 25 bar) and a temperature of either 0 °C or
15 °C (see Table 3).
–6 2
NOTE 4 1 centistoke = 10 m /s.
5 Test system
5.1 Test specimen
The test specimen is any valve or combination of valve, pipe reducer, and expander or other
devices attached to the valve body for which test data are required. See Annex A for
additional examples of test specimens representative of typical field installations.
Additional considerations apply when testing certain styles of high-capacity control valves,
e.g., ball or butterfly valves. These valves may produce free jets in the downstream test
section impacting the location of the pressure recovery zone. See Clause 6 for expected
accuracies.
Fractional C valves (valves where C << N ) are addressed in 8.1.2.
18
Physical or computer-based modelling of control valves as the basis for flow coefficient
determination is permissible but is outside the scope of this standard. When modelling, it is
incumbent on the practitioner to employ suitable modelling techniques to validate the model
and scaling relationships to actual flow data, and to document the nature of the model.
5.2 Test section
A basic flow test system is shown in Figure 1.
IEC
Figure 1 – Basic flow test system
The upstream and downstream piping adjacent to the test specimen should conform to the
nominal size of the test specimen connection and to the straight length requirements of
Figure 2. The inlet and outlet piping shall be suitable for the maximum respective pressures
that can be applied by the test system (Table B.3 provides data for commonly used pipe).
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SIST EN 60534-2-3:2016
IEC 60534-2-3:2015 © IEC 2015 – 9 –
The inside diameter (ID) of the pipe normally should be within ± 2 % of the actual inside
2
diameter of the inlet and outlet of the test specimen for all valve sizes. As the C/d ratio (of
the test valve) increases, the mismatch in diameters becomes more problematic. Potential
pressure losses associated with the inlet and outlet joints become significant in comparison to
the loss associated the valve. Also, a significant discontinuity at the valve outlet could affect
the downstream (p ) pressure measurement. One indication of the significance of mismatched
2
diameters is the value of the piping geometry factor (F ) based on the internal diameters. This
P
value approaches unity for a standard test, i.e., for equal line and specimen inside diameters.
Therefore, to e
...
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