Calculation of the pressure drop across a flow conditioner uses basic fluid dynamic principles and experimental data from different fluid scenarios. There is no typical pressure drop value as the pressure drop behavior is always fluid application dependent; changes in flow velocity, viscosity and density can all cause large changes in the resulting values. The pressure loss coefficient (K) is also dependent on the process conditions of the application, but cannot be theoretically calculated using textbook equations; it must be experimentally determined through testing for each unique element geometry.
Sample Flow Conditioner K Factors vs Pipe Reynolds Number.
CPA can perform a custom pressure drop calculation for any flow conditioner upon request. As these calculations are dependent on the fluid properties of the metering scenario, the process conditions will be required to carry out the calculation. Please complete and submit the attached pressure drop request form in order to receive the most accurate calculation results.
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When submitting, please include any specification sheets that describe application process conditions. Please note that the pressure drops calculations assume fully developed flow. Installation effects, swirl or any other type of flow disturbance can change the flow conditioner behavior, K factor and pressure drop calculation results. If a more detailed calculation is required, please contact CPA to discuss modeling the meter station using computational fluid dynamic analysis.