SN EN ISO 5167-2 : 2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 2: ORIFICE PLATES
08-08-2022
01-12-2013
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
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