IEC 60534-2-3:2015

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.

General Information

• Status: Published
• Publication Date: 15-Dec-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 23.060.40 - Pressure regulators
• ICS: 25.040.40 - Industrial process measurement and control
• Technical Committee: SC 65B - Measurement and control devices
• Drafting Committee: WG 9 - TC 65/SC 65B/WG 9
• Current Stage: PPUB - Publication issued
• Start Date: 31-Dec-2015
• Completion Date: 16-Dec-2015

Relations

• Revises: IEC 60534-2-3:1997 - Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60534-2-3 ®
Edition 3.0 2015-12
INTERNATIONAL
STANDARD
colour
inside
Industrial-process control valves –
Part 2-3: Flow capacity – Test procedures
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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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
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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
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International Standards for all electrical, electronic and related technologies.

About IEC publications
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latest edition, a corrigendum or an amendment might have been published.

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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 .
...