IEC 60534-2-3:2015
(Main)Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
IEC 60534-2-3:2015 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.
This 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.
Vannes de régulation des processus industriels - Partie 2-3: Capacité d’écoulement - Procédures d’essai
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.
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IEC 60534-2-3 ®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
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inside
Industrial-process control valves –
Part 2-3: Flow capacity – Test procedures
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About the IEC
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International Standards for all electrical, electronic and related technologies.
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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
– 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
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
– 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
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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
...
IEC 60534-2-3 ®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial-process control valves –
Part 2-3: Flow capacity – Test procedures
Vannes de régulation des processus industriels –
Partie 2-3: Capacité d’écoulement – Procédures d’essai
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
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IEC publications issued since 2002. Some entries have been
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If you wish to give us your feedback on this publication or CISPR.
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IEC 60534-2-3 ®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Industrial-process control valves –
Part 2-3: Flow capacity – Test procedures
Vannes de régulation des processus industriels –
Partie 2-3: Capacité d’écoulement – Procédures d’essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 23.060.40; 25.040.40 ISBN 978-2-8322-8666-1
– 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
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 . 25
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 . 38
Bibliography . 40
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 .
...
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