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ONORM 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Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

MEASUREMENT OF FLUID FLOW BY MEANS OF PRESSURE DIFFERENTIAL DEVICES INSERTED IN CIRUCLAR CROSS-SECTION CONDUITS RUNNING FULL - PART 4: VENTURI TUBES

Superseded date

23-02-2023

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 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
PublisherName
Osterreichisches Normungsinstitut/Austrian Standards
Status
Superseded
SupersededBy

ONORM EN 1366-10 : 2011 FIRE RESISTANCE TESTS FOR SERVICE INSTALLATIONS - PART 10: SMOKE CONTROL DAMPERS
ONORM EN 13053 : 2011 VENTILATION FOR BUILDINGS - AIR HANDLING UNITS - RATING AND PERFORMANCE FOR UNITS, COMPONENTS AND SECTIONS
ONORM EN 1366-1 : 2014 FIRE RESISTANCE TESTS FOR SERVICE INSTALLATIONS - PART 1: VENTILATION DUCTS
ONORM EN 1822-5 : 2011 HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 5: DETERMINING THE EFFICIENCY OF FILTER ELEMENTS
ONORM EN 1366-12 : 2014 FIRE RESISTANCE TESTS FOR SERVICE INSTALLATIONS - PART 12: NON-MECHANICAL FIRE BARRIER FOR VENTILATION DUCTWORK
ONORM EN 1822-1 : 2011 HIGH EFFICIENCY AIR FILTERS (EPA, HEPA AND ULPA) - PART 1: CLASSIFICATION, PERFORMANCE TESTING, MARKING
ONORM EN 1751 : JUN 2014 VENTILATION FOR BUILDINGS - AIR TERMINAL DEVICES - AERODYNAMIC TESTING OF DAMPER AND VALVES

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