BH GSO ISO 5167-4:2024
ISO 5167-4:2003
Bahraini Standard
Current Edition
·
Approved on
21 November 2024
Measurement of fluid flow by mesa of pressure differential devices inserted in circular cross-section conduits running full- Part 4 Venturi tubes
BH GSO ISO 5167-4:2024 Files
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BH GSO ISO 5167-4:2024 Scope
This part of ISO 5167 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. This part of ISO 5167 also provides background information for calculating the flowrate and is applicable in conjunction with the requirements given in ISO 5167-1. This part of ISO 5167 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. This part of ISO 5167 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 where the pipe Reynolds numbers are below 2 × 105.
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