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IEC 60534-2-3:2015 ed3.0
Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
42 стр.
Действует
Электронный (pdf)Печатная копия
393.12 CHF (включая НДС 20%)
Разработчик:
Зарубежные/IEC
ICS:
23.060.40 Pressure. Including pressure-reducers / Регуляторы давления. Включая редукторы25.040.40 Industrial process measurement and control / Измерение и контроль производственного процесса
Описание
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.