DIN EN 60534-2-5:2004-03
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
INDUSTRIAL PROCESS CONTROL VALVES - PART 2-5: FLOW CAPACITY - SIZING EQUATIONS FOR FLUID FLOW THROUGH MULTISTAGE CONTROL VALVES WITH INTERSTAGE RECOVERY
01-02-2014
12-01-2013
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Installation
5 Symbols
6 Sizing equations for incompressible fluids
6.1 Turbulent flow
7 Sizing equations for compressible fluids
7.1 Turbulent flow
8 Determination of correction factors
8.1 Piping geometry factor, F[p]
8.2 Liquid pressure recovery factors F[L] or F[LP]
8.3 Liquid critical pressure ratio factor F[F]
8.4 Expansion factor Y
8.5 Pressure differential ratio factor x[T] or x[TP]
8.6 Specific heat ratio factor F[gamma]
8.7 Compressibility factor Z
8.8 Stage interaction factor k
8.9 Reheat factor r
Annex A (informative) Physical constants [a]
Annex B (informative) Examples of sizing calculations
Annex ZA (normative) Normative references to international
publications with their corresponding European
publications
Bibliography
Provides equations for predicting the flow of compressible and incompressible fluids through multistage control valves.
| DevelopmentNote |
Supersedes DIN IEC 60534-2-5 (03/2004)
|
| DocumentType |
Standard
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Withdrawn
|
| Supersedes |
| Standards | Relationship |
| NF EN 60534-2-5 : 2004 | Identical |
| SN EN 60534-2-5 : 2003 | Identical |
| IEC 60534-2-5:2003 | Identical |
| BS EN 60534-2-5:2003 | Identical |
| I.S. EN 60534-2-5:2003 | Identical |
| EN 60534-2-5:2003 | Identical |
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