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IEC 60534-2:1978

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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Industrial-process control valves. Part 2: Flow capacity. Section One: Sizing equations for incompressible fluid flow under installed conditions

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

23-07-2013

Superseded by

IEC 60534-2-1:2011

Language(s)

English - French

Published date

01-01-1978

€41.59
Excluding VAT

Contents
Foreword
Preface
Clause
1. Scope
2. Definitions
3. Installation
4. Nomenclature
5. General sizing equations
6. Determination of correction factors

Deals with a general sizing equation for incompressible fluid flow under installed conditions. Factors are introduced which permit accurate sizing when choked conditions exist due to either cavitation or flashing. Procedures and factors are incorporated to handle installations where the valve is installed between fittings such as reducers, expanders, etc. A Reynolds number factor allows for applications where non-turbulent flow conditions exist caused by low differential pressure and/or high viscosity fluids. Numerical constants are presented permitting the use of three recognized flow coefficients: Av, Kv, and Cv.

DocumentType
Standard
Pages
21
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy

Standards Relationship
DIN IEC 60534-2-1:1984-06 Identical
NFE 29 312 : 1984 Similar to
NFC 46 503 : 1988 Identical
NEN 10534-2-1 : 1993 Identical
DIN IEC 60534-2-1:1984-06 Corresponds

BS EN 60534-3-2:2001 Industrial-process control valves. Dimensions Face-to-face dimensions for rotary control valves except butterfly valves
DIN IEC 60534-2-4:1990-11 INDUSTRIAL-PROCESS CONTROL VALVES; FLOW CAPACITY; INHERENT FLOW CHARACTERISTICS AND RANGEABILITY
06/30155498 DC : DRAFT AUG 2006 ISO 4126-10 - SAFETY DEVICES FOR PROTECTION AGAINST EXCESSIVE PRESSURE - PART 10: SIZING OF SAFETY VALVES AND CONNECTED INLET AND OUTLET LINES FOR GAS/LIQUID TWO-PHASE FLOW
IEC 60534-3-2:2001 Industrial-process control valves - Part 3-2: Dimensions - Face-to-face dimensions for rotary control valves except butterfly valves
EN 60534-3-2:2001 Industrial-process control valves - Part 3-2: Dimensions - Face-to-face dimensions for rotary control valves except butterfly valves

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