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sklademVydáno: 2011-06-30
BS EN 60534-8-3:2011
Industrial-process control valves Noise considerations. Control valve aerodynamic noise prediction method
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Označení normy: | BS EN 60534-8-3:2011 |
Počet stran: | 52 |
Vydáno: | 2011-06-30 |
ISBN: | 978 0 580 67340 5 |
Status: | Standard |
DESCRIPTION
BS EN 60534-8-3:2011
This standard BS EN 60534-8-3:2011 Industrial-process control valves is classified in these ICS categories:
- 33.100.01 Electromagnetic compatibility in general
- 25.040.40 Industrial process measurement and control
- 17.140.20 Noise emitted by machines and equipment
- 23.060.40 Pressure regulators
- globe (straight pattern and angle pattern),
- butterfly,
- rotary plug (eccentric, spherical),
- ball, and
- valves with cage trims.
Specifically excluded are the full bore ball valves where the product FpC exceeds 50 % of the rated flow coefficient. This third edition cancels and replaces the second edition published in 2000. This edition constitutes a technical revision. The significant technical changes with respect to the previous edition are as follows:
- predicting noise as a function of frequency;
- using laboratory data to determine the acoustical efficiency factor.