API MPMS Chapter 22.2 (R2022) PDF
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Manual of Petroleum Measurement Standards, Chapter 22-Testing Protocol Section 2-Differential Pressure Flow Measurement Devices, Second Edition
American Petroleum Institute , 04/01/2017
API MPMS Chapter 22.2 (R2022) PDF
The testing protocol is limited to single-phase Newtonian fluid flow, and no consideration is given to pulsation effects. Further revisions of this document may include the testing of such meters in wet gas or multi-phase service and the effects of pulsation. This standard does not address testing protocols of those devices that operate on the principle of critical or choked flow condition of fluids.
The testing protocol covers any flow meter operating on the principle of a local change in flow velocity caused by the meter geometry, giving a corresponding change of pressure between two reference locations. There are several types of differential pressure meters available to industry. It is the purpose of this standard to illustrate the range of applications of each meter design and not to endorse any specific meter. The basic principle of operation of the flow measuring devices follows the physical laws relating to the conservation of energy and mass for the fluid flows through the device.
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