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I.S. EN ISO 5167-4:2003

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 4: VENTURI TUBES
Available format(s)

Hardcopy , PDF

Superseded date

03-04-2023

Language(s)

English

Published date

01-01-2003

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles of the method of measurement and computation
5 Classical Venturi tubes
   5.1 Field of application
   5.2 General shape
   5.3 Material and manufacture
   5.4 Pressure tappings
   5.5 Discharge coefficient, C
   5.6 Expansibility [expansion] factor, [epsilon]
   5.7 Uncertainty of the discharge coefficient, C
   5.8 Uncertainty of the expansibility [expansion]
        factor [epsilon]
   5.9 Pressure loss
6 Installation requirements
   6.1 General
   6.2 Minimum upstream and downstream straight lengths
        for installation between various fittings and the
        Venturi tube
   6.3 Flow conditioners
   6.4 Additional specific installation requirements
        for classical Venturi tubes
Annex A (informative) Table of expansibility [expansion]
         factor
Annex B (informative) Classical Venturi tubes used
         outside the scope of ISO 5167-4
Annex C (informative) Pressure loss in a classical
         Venturi tube
Bibliography

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

DocumentType
Standard
Pages
38
PublisherName
National Standards Authority of Ireland
Status
Superseded
SupersededBy

ISO/TR 5168:1998 Measurement of fluid flow Evaluation of uncertainties
ISO/TR 3313:1998 Measurement of fluid flow in closed conduits Guidelines on the effects of flow pulsations on flow-measurement instruments
ISO/TR 9464:2008 Guidelines for the use of ISO 5167:2003
ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols

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