NF EN 60534-2-5

Industrial-process control valves - Part 2-5 : flow capacity - Sizing equations for fluid flow through multistage control valves with interstage recovery

Le présent document comprend des équations permettant de prédire le débit de fluides compressibles et incompressibles dans les vannes de régulation multi-étagées. Les équations relatives aux fluides incompressibles sont fondées sur les équations de base pour les fluides newtoniens incompressibles. Elles ne sont pas destinées à être utilisées pour des fluides non newtoniens, des mélanges de fluides, des boues ou des systèmes de transport de particules solides en suspension dans un liquide. Le présent document s'applique uniquement aux conceptions de vannes de régulation multi-étagées à chemins multiples et multi-étagées à chemin unique.

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