I.S. EN ISO 5167-4:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRCULAR CROSS-SECTION CONDUITS RUNNING FULL - PART 4: VENTURI TUBES
Hardcopy , PDF
04-03-2023
English
01-01-2003
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.
Dates of withdrawal of national standards are available from NSAI.
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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 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Superseded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 |
| Standards | Relationship |
| ONORM EN ISO 5167-4 : 2003 | Identical |
| NBN EN ISO 5167-4 : 2003 | Identical |
| SN EN ISO 5167-4 : 2003 | Identical |
| UNE-EN ISO 5167-4:2003 | Identical |
| EN ISO 5167-4:2003 | Identical |
| NEN EN ISO 5167-4 : 2003 | Identical |
| NF EN ISO 5167-4 : 2003 | Identical |
| BS EN ISO 5167-4:2003 | Identical |
| UNI EN ISO 5167-4 : 2004 | Identical |
| NS EN ISO 5167-4 : 1ED 2003 | Identical |
| ISO 5167-4:2003 | Identical |
| DIN EN ISO 5167-4:2004-01 | Identical |
| 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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