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NS EN ISO 5167-2 : 1ED 2003

Current

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

Published date

12-01-2013

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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
Norwegian Standards (Norges Standardiseringsforbund)
Status
Current

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