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SR EN ISO 5167-4:2004
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full - Part 4: Venturi tubes (ISO 5167-4:2003)
ISO 5167-4:2003 specifies 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. ISO 5167-4:2003 also provides background information for calculating the flow-rate and is applicable in conjunction with the requirements given in ISO 5167-1. ISO 5167-4:2003 is applicable only to Venturi tubes in which the flow remains subsonic throughout the measuring section and where the fluid can be considered as single-phase. In addition, each of these devices can only be used within specified limits of pipe size, roughness, diameter ratio and Reynolds number. ISO 5167-4:2003 is not applicable to the measurement of pulsating flow. It does not cover the use of Venturi tubes in pipes sized less than 50 mm or more than 1 200 mm, or for where the pipe Reynolds numbers are below 20 000. ISO 5167-4:2003 deals with the three types of classical Venturi tubes: cast, machined and rough welded sheet-iron. A Venturi tube is a device which consists of a converg
Status :
Withdrawn
Approval date : 11/26/2004
Publish date : 11/27/2004
Withdrawal date : 7/29/2022
Number of pages : 36
ICS : 17.120.10 Flow in closed conduits
Technical Committee : 109 - Measurement of fluid flow
- Replaces SR EN ISO 5167-1+A1:2002
- Normative reference SR EN 24006:2001
- Normative reference SR EN ISO 5167-1:2004
- Replaced by SR EN ISO 5167-4:2022
- Amended by SR EN ISO 5167-4:2004/C91:2005