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BS EN 1267:2012

Current

Current

The latest, up-to-date edition.

Industrial valves. Test of flow resistance using water as test fluid

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-01-2012

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Test facility
5 Test procedure
6 Calculation
7 Test report
Annex A (informative) - Lower zeta limit
        considerations
Annex B (informative) - Flow rate and
        physical phenomena of flow
        through a valve
Annex C (informative) - Uncertainty on
        measurement
Annex D (informative) - Evaluation of
        uncertainty of flow rate
        coefficient (K[v]) and pressure
        losses coefficient (zeta)
Bibliography

Defines a method for determining valve pressure loss coefficient and fluid flow coefficient using water as test fluid.

This European Standard specifies a method for determining valve pressure loss coefficient and fluid flow coefficient using water as test fluid. This method is suitable

  • for valves with low zeta values but higher than 0,1 by determining pressure loss, with respect to fluid flow rate and specific gravity, and

  • for valves with equal inlet and outlet nominal size.

Industrial process control valves are excluded from this European Standard.

NOTE 1 For zeta values above 6, the pressure loss coefficient inaccuracy is higher than the pressure loss caused by the test tubes. It becomes the same configuration of tests as in EN 60534-2-3.

NOTE 2 If using air as test fluid, other standards e.g. EN 60534-2-3 and ISO 6358 should be referred to.

Committee
PSE/18/1
DevelopmentNote
Supersedes 93/716754 DC. (08/2005) Supersedes 09/30202711 DC. (02/2012)
DocumentType
Standard
Pages
38
PublisherName
British Standards Institution
Status
Current
Supersedes

Standards Relationship
EN 1267:2012 Identical
NBN EN 1267 : 2012 Identical
UNI EN 1267 : 2012 Identical
I.S. EN 1267:2012 Identical
DIN EN 1267:2012-04 Identical
SN EN 1267 : 2012 Identical
NS EN 1267 : 2012 Identical
NEN EN 1267 : 2012 Identical
NF EN 1267 : 2012 Identical
UNE-EN 1267:2012 Identical

EN 1057:2006+A1:2010 Copper and copper alloys - Seamless, round copper tubes for water and gas in sanitary and heating applications
EN 24006:1993 Measurement of fluid flow in closed conduits - Vocabulary and symbols (ISO 4006:1991)
ISO 6358:1989 Pneumatic fluid power Components using compressible fluids Determination of flow-rate characteristics
ISO 6708:1995 Pipework components Definition and selection of DN (nominal size)
EN ISO 1127:1996 Stainless steel tubes - Dimensions, tolerances and conventional masses per unit length (ISO 1127:1992)
EN ISO 6708:1995 Pipework components - Definition and selection of DN (nominal size) (ISO 6708:1995)
ISO 7-1:1994 Pipe threads where pressure-tight joints are made on the threads Part 1: Dimensions, tolerances and designation
ISO 4200:1991 Plain end steel tubes, welded and seamless — General tables of dimensions and masses per unit length
EN 60534-2-1:2011/AC:2015 INDUSTRIAL-PROCESS CONTROL VALVES - PART 2-1: FLOW CAPACITY - SIZING EQUATIONS FOR FLUID FLOW UNDER INSTALLED CONDITIONS (IEC 60534-2-1:2011)
ISO 65:1981 Carbon steel tubes suitable for screwing in accordance with ISO 7-1
EN 60534-2-3:2016 Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
ISO 7194:2008 Measurement of fluid flow in closed conduits — Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot static tubes
IEC 60534-2-3:2015 Industrial-process control valves - Part 2-3: Flow capacity - Test procedures
ISO 7598:1988 Stainless steel tubes suitable for screwing in accordance with ISO 7-1
IEC 60534-2-1:2011 Industrial-process control valves - Part 2-1: Flow capacity - Sizing equations for fluid flow under installed conditions
ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
EN 736-3:2008 Valves - Terminology - Part 3: Definition of terms
ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
ISO 1127:1992 Stainless steel tubes Dimensions, tolerances and conventional masses per unit length

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