NEN EN ISO 5167-2 : 2003
Current
The latest, up-to-date edition.
MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 2: ORIFICE PLATES
12-01-2013
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principles of the method of measurement and computation
5 Orifice plates
5.1 Description
5.2 Pressure tappings
5.3 Coefficients and corresponding uncertainties of
orifice plates
5.4 Pressure loss, delta[omega]
6 Installation requirements
6.1 General
6.2 Minimum upstream and downstream straight lengths
for installation between various fittings and the
orifice plate
6.3 Flow conditioners
6.4 Circularity and cylindricality of the pipe
6.5 Location of orifice plate and carrier rings
6.6 Method of fixing and gaskets
Annex A (informative) Tables of discharge coefficients
and expansibility [expansion] factors
Annex B (informative) Flow conditioners
Bibliography
Defines the geometry and method of use (installation and operating conditions) of orifice plates when they are inserted in a conduit running full to determine the flow-rate of the fluid flowing in the conduit.
| DocumentType |
Standard
|
| PublisherName |
Netherlands Standards
|
| Status |
Current
|
| Standards | Relationship |
| EN ISO 5167-2:2003 | Identical |
| DIN EN ISO 5167-2:2004-01 | Identical |
| I.S. EN ISO 5167-2:2003 | Identical |
| BS EN ISO 5167-2:2003 | Identical |
| SN EN ISO 5167-2 : 2003 | Identical |
| ISO 5167-2:2003 | Identical |
| NF EN ISO 5167-2 : 2003 | Identical |
| ONORM EN ISO 5167-2 : 2003 | Identical |
| UNI EN ISO 5167-2 : 2004 | Identical |
| UNE-EN ISO 5167-2:2003 | Identical |
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