![]() ![]() The general equation for calculating the flow rate ![]() Calculation of Flow Rate from Orifice, Venturi or Flow Nozzle Meter Data If the flow meter is an orifice meter with one of the ISO standard pressure tap configurations, then the third Excel template can be used to calculate a value for the orifice discharge coefficient. In case the flowing fluid is a gas, the second Excel template allows calculation of the gas density from its molecular weight and values for the gas temperature and pressure, using the Ideal Gas Law. The first Excel template is for calculating the flow rate, based on a measured pressure difference and information about the meter, the fluid, and the pipeline. The following sections in this article present three Excel templates for such calculations. Orifice and Venturi Meter Calculations with Excel Spreadsheet FormulasĮxcel spreadsheet formulas can be conveniently used to make calculation for differential pressure flow meters, like an orifice flow meter, a venturi meter, or a flow nozzle meter. ![]()
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