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NEN EN ISO 5167-3 : 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 3: NOZZLES AND VENTURI NOZZLES

Published date

12-01-2013

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles of the method of measurement and computation
5 Nozzles and Venturi nozzles
  5.1 ISA 1932 nozzle
  5.2 Long radius nozzles
  5.3 Venturi nozzles
6 Installation requirements
  6.1 General
  6.2 Minimum upstream and downstream straight lengths
      for installation between various fittings and the
      primary device
  6.3 Flow conditioners
  6.4 Circularity and cylindricality of the pipe
  6.5 Location of primary device and carrier rings
  6.6 Method of fixing and gaskets
Annex A (informative) Tables of discharge coefficients
         and expansibility [expansion] factors
Bibliography

Defines the geometry and method of use (installation and operating conditions) of nozzles and Venturi nozzles when they are inserted in a conduit running full to determine the flow-rate of the fluid flowing in the conduit.

DevelopmentNote
Supersedes NEN EN ISO 5167-1(1995) (12/2003)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Current

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