BS EN 60534-2-4:2009 2010
$86.31
Industrial-process control valves – Flow capacity. Inherent flow characteristics and rangeability
| Published By | Publication Date | Number of Pages |
| BSI | 2010 | 14 |
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.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | 1 Scope 2 Normative references 3 Terms and definitions |
| 7 | 4 Symbols Table 1 – Symbols |
| 8 | 5 Typical inherent flow characteristics |
| 9 | Figure 1 – Example of an equal percentage characteristic valve specimen compared to manufacturer-stated flow characteristic |
| 10 | Figure 2 – Example of linear characteristic valve specimen compared to manufacturer-stated flow characteristic |
| 11 | 6 Inherent rangeability 7 Permissible deviations between actual and manufacturer-stated inherent flow characteristics Table 2 – Limiting values of flow coefficients |
| 12 | Table 3 – Allowable flow coefficient deviations |
