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IEC 60534-2-2:1980 ed1.0

Заменен
Industrial-process control valves. Part 2: Flow capacity. Section Two: Sizing equations for compressible fluid flow under installed conditions — 35 стр.
Covers equations suitable for use in sizing industrial process control valves when the flowing media are compressible fluids. The equations are for use with gas or vapour and are not intended for use with multiphase streams.
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