IEC 60534-2-3:2015


Language: EN Industrial-process control valves - Part 2-3: Flow capacity - Test procedures


Language: EN 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.

Language: EN
Date of issue
TC 65/SC 65B
ICS Codes
23.060.40, 25.040.40
Publication number

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€ 218,20 (Download and hardcopy)
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postal download (42 Pages)




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Mandatory Standard according current regulation Mandatory Standard according current regulation

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