BS EN 1267:2012
Current
The latest, up-to-date edition.
Industrial valves. Test of flow resistance using water as test fluid
Hardcopy , PDF
English
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.
| 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 |
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.
| Standards | Relationship |
| EN 1267:2012 | Identical |
| NBN EN 1267 : 2012 | Identical |
| I.S. EN 1267:2012 | Identical |
| DIN EN 1267:2012-04 | Identical |
| NS EN 1267 : 2012 | Identical |
| NEN EN 1267 : 2012 | Identical |
| NF EN 1267 : 2012 | Identical |
| UNE-EN 1267:2012 | Identical |
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