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BS EN 60534-2-3:2016 – TC:2020 Edition

BS EN 60534-2-3:2016 – TC:2020 Edition

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Tracked Changes. Industrial-process control valves – Flow capacity. Test procedures

Published By Publication Date Number of Pages
BSI 2020 103
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IEC 60534-2-3:2015(E) 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.

PDF Catalog

PDF Pages PDF Title
61 CONTENTS
63 FOREWORD
65 1 Scope
2 Normative references
3 Terms and definitions
66 4 Symbols
67 5 Test system
5.1 Test specimen
5.2 Test section
Figures
Figure 1 – Basic flow test system
68 5.3 Throttling valves
Figure 2 – Test section piping requirements
69 5.4 Flow measurement
5.5 Pressure taps
5.6 Pressure measurement
5.7 Temperature measurement
70 5.8 Valve travel
5.9 Installation of test specimen
Figure 3 – Recommended pressure tap connection
Tables
Table 1 – Test specimen alignment
71 6 Accuracy of tests
7 Test fluids
7.1 Incompressible fluids
7.2 Compressible fluids
8 Test procedure for incompressible fluids
8.1 Test procedure for flow coefficient C
72 Table 2 – Minimum inlet absolute test pressure in kPa (bar) as related to FL and Δp
73 8.2 Test procedure for liquid pressure recovery factor FL and combined liquid pressure recovery factor and piping geometry factor FLP
74 8.3 Test procedure for piping geometry factor Fp
8.4 Test procedure for liquid critical pressure ratio factor FF
8.5 Test procedure for Reynolds number factor FR for incompressible flow
8.6 Test procedure for valve style modifier Fd
75 9 Data evaluation procedure for incompressible fluids
9.1 Non-choked flow
9.2 Choked flow
9.2.1 For choked flow, two conditions shall be considered:
9.2.2 Without attached fittings
9.2.3 With attached fittings
76 9.3 Calculation of flow coefficient C
9.4 Calculation of liquid pressure recovery factor FL and the combined liquid pressure recovery factor and piping geometry factor FLP
9.4.2 Without attached fittings
9.4.3 With attached fittings
77 9.5 Calculation of piping geometry factor FP
9.6 Calculation of liquid critical pressure ratio factor FF
9.7 Calculation of Reynolds number factor FR
9.8 Calculation of valve style modifier Fd
78 10 Test procedure for compressible fluids
10.1 Test procedure for flow coefficient C
79 10.2 Test procedure for pressure differential ratio factors xT and xTP
80 10.3 Test procedure for piping geometry factor Fp
81 10.4 Test procedure for Reynolds number factor FR
10.5 Test procedure for valve style modifier Fd
10.6 Test procedure for small flow trim
82 11 Data evaluation procedure for compressible fluids
11.1 Flow equation
11.2 Calculation of flow coefficient C
11.3 Calculation of pressure differential ratio factor xT
83 11.4 Calculation of pressure differential ratio factor xTP
11.5 Calculation of piping geometry factor Fp
11.6 Calculation of Reynolds number factor FR for compressible fluids
11.7 Calculation of valve style modifier Fd
11.8 Calculation of flow coefficient C for small flow trim
84 Table 3 – Numerical constants N
85 Annex A (normative) Typical examples of test specimens showing appropriate pressure tap locations
86 Figure A.1– Typical examples of test specimens showing appropriate pressure tap locations
87 Annex B (informative) Engineering data
Figure B.1 – Dynamic viscosity of water
Table B.1 – Properties for water
88 Table B.2 – Properties of air
89 Table B.3 – Test section piping
90 Annex C (informative) Derivation of the valve style modifier, Fd
93 Figure C.1 – Single seated, parabolic plug(flow tending to open)
Figure C.2 – Swing-through butterfly valve
Table C.1 – Numerical constant, N
94 Annex D (informative) Laminar flow test discussion
95 Annex E (informative) Long form FL test procedure
E.1 General
E.2 Test procedure
E.3 Graphical data reduction
96 Figure E.1 – Typical flow results
98 Annex F (informative) Calculation of FP to help determine if pipe/valve port diameters are adequately matched
99 Table F.1 – Tabulated values of FP if upstream and downstream pipe the same size
Table F.2 – Tabulated values of FP if downstream pipe larger than valve
100 Bibliography

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BS EN 60534-2-3:2016 - TC
$246.62