ISO 5167-4:2003
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
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Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full — Part 4: Venturi tubes
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
English, French
24-02-2003
09-04-2025
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 convergent inlet connected to a cylindrical throat which is in turn connected to a conical expanding section called the "divergent". The differences between the values of the uncertainty of the discharge coefficient for the three types of classical Venturi tube show, on the one hand, the number of results available for each type of classical Venturi tube and, on the other hand, the more or less precise definition of the geometric profile. The values are based on data collected many years ago. Venturi nozzles (and other nozzles) are dealt with in ISO 5167-3.
| Committee |
ISO/TC 30/SC 2
|
| DevelopmentNote |
Supersedes ISO/DIS 5167-4 (02/2003) Together with ISO 5167-1, ISO 5167-2 and ISO 5167-3 supersedes the 1st Edition of ISO 5167-1 (03/2003)
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| DocumentType |
Standard
|
| Pages |
24
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy |
| Standards | Relationship |
| JIS Z 8762-4:2007 | Identical |
| NF EN ISO 5167-4 : 2003 | Identical |
| NBN EN ISO 5167-4 : 2003 | Identical |
| NEN EN ISO 5167-4 : 2003 | Identical |
| NS EN ISO 5167-4 : 1ED 2003 | Identical |
| I.S. EN ISO 5167-4:2003 | Identical |
| PN EN ISO 5167-4 : 2005 | Identical |
| BIS IS 14615-4:2018 | Identical |
| BS EN ISO 5167-4:2003 | Identical |
| EN ISO 5167-4:2003 | Identical |
| DIN EN ISO 5167-4:2004-01 | Identical |
| UNE-EN ISO 5167-4:2003 | Identical |
A newer version of this standard is available.
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