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IEC 60534-2-1:1998 ed1.0

Заменен
Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions — 52 стр.
Includes equations for predicting the fow of compressible and incompressible fluids through control valves. Not intended for use when non-Newtonian fluids, fluid mixtures, slurries, or liquid-solid conveyance systems are encoutnererd. Equations for compressible fluids are for use with gas or vapour and are not inteded for use with multiphase streams such as gas-liquid, vapour-liquid or gas-solid mixtures. Valid for valves with xT smaller or equal to 0,84. The contents of the corrigendum of February 2000 have been included in this copy.
ICS
23.060.40 Pressure. Including pressure-reducers / Регуляторы давления. Включая редукторы
25.040.40 Industrial process measurement and control / Измерение и контроль производственного процесса