IEC 60534-2-5:2003
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.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
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
31-12-2021
English - French
05-09-2003
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FOREWORD
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
Bibliography
Gives equations for predicting the flow of compressible and incompressible fluids through multistage control valves. Is based on standard hydrodynamic equations for Newtonian incompressible fluids. Is applicable only to those designs of multistage multipath control valves and multistage single path control valves.
| DocumentType |
Standard
|
| Pages |
55
|
| PublisherName |
International Electrotechnical Committee
|
| Status |
Withdrawn
|
| Standards | Relationship |
| NF EN 60534-2-5 : 2004 | Identical |
| NEN EN IEC 60534-2-5 : 2003 | Identical |
| I.S. EN 60534-2-5:2003 | Identical |
| PN EN 60534-2-5 : 2004 | Identical |
| SN EN 60534-2-5 : 2003 | Identical |
| UNE-EN 60534-2-5:2003 | Identical |
| BS EN 60534-2-5:2003 | Identical |
| CEI EN 60534-2-5 : 2004 | Identical |
| EN 60534-2-5:2003 | Identical |
| DIN IEC 60534-2-5:2001-08 (Draft) | Identical |
| DIN EN 60534-2-5:2004-03 | Identical |
| CEI EN 60534-7 : 2012 | INDUSTRIAL-PROCESS CONTROL VALVES - PART 7: CONTROL VALVE DATA SHEET |
| EN 1349:2009 | Industrial process control valves |
| BS EN 1349:2009 | Industrial process control valves |
| BS EN 60534-7:2010 | Industrial-process control valves Control valve data sheet |
| I.S. EN 1349:2009 | INDUSTRIAL PROCESS CONTROL VALVES |
| UNI EN 1349 : 2010 | INDUSTRIAL PROCESS CONTROL VALVES |
| 07/30174895 DC : DRAFT DEC 2007 | BS EN 60534-7 ED.2 - INDUSTRIAL-PROCESS CONTROL VALVE - PART 7: CONTROL VALVE DATA SHEET |
| NF EN 60534-7 : 2012 | INDUSTRIAL-PROCESS CONTROL VALVES - PART 7: CONTROL VALVE DATA SHEET |
| 09/30201712 DC : 0 | BS EN 60534-7 - INDUSTRIAL-PROCESS CONTROL VALVE - PART 7: CONTROL VALVE DATA SHEET |
| 08/30179182 DC : DRAFT MAY 2008 | BS EN 1349 - INDUSTRIAL PROCESS CONTROL VALVES |
| I.S. EN 60534-7:2010 | INDUSTRIAL-PROCESS CONTROL VALVES - PART 7: CONTROL VALVE DATA SHEET |
| IEC 60534-7:2010 | Industrial-process control valves - Part 7: Control valve data sheet |
| EN 60534-7:2010 | Industrial-process control valves - Part 7: Control valve data sheet |
| IEC 60534-2-3:2015 | Industrial-process control valves - Part 2-3: Flow capacity - Test procedures |
| IEC 60534-2-1:2011 | Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions |
| IEC 60534-1:2005 | Industrial-process control valves - Part 1: Control valve terminology and general considerations |
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