RO
SR EN 60534-2-4:2010
Industrial-process control valves -- Part 2-4: Flow capacity - Inherent flow characteristics and rangeability
IEC 60534-2-4:2009 applies to all types of industrial-process control valves. It defines how to state typical control valve inherent flow characteristics and inherent rangeabilities. It also defines how to establish criteria for adherence to manufacturer-stated flow characteristics. This edition constitutes a technical revision. The main changes with respect to the previous edition are: - update the normative references; - delete the terminology included in IEC 60534-1; - transform the previous Note 1 in Clause 6; - redraw the graphics; - delete the previous Figure 3.
Status :
Valid
Approval date : 1/31/2010
Publish date : 2/2/2010
Number of pages : 26
ICS : 23.060.40 Pressure regulators,25.040.40 Industrial process measurement and control
Technical Committee : 23 - Industrial -process measurement and control