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Power Number Calculator

Calculates the power number Np from shaft power, fluid density, rotational speed, and impeller diameter — used for agitator sizing and scale-up.

Inputs

Shaft Power

Fluid Density

Rotational Speed

Impeller Diameter

Results

Power Number

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Results are based on standard engineering correlations for preliminary process design reference only. Please verify with test data and a qualified process engineer before finalizing equipment selection.

FAQ

Frequently asked about the Power Number Calculator

What is the Power Number Calculator?

Calculates the power number Np from shaft power, fluid density, rotational speed, and impeller diameter — used for agitator sizing and scale-up.

Can this result be used directly for engineering design?

Results are based on standard engineering correlations for preliminary reference only; please verify with test data and a qualified engineer before finalizing your design.

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Power Number Calculator

Inputs

Results

Frequently asked about the Power Number Calculator

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Power Number Calculator

Inputs

Results

Frequently asked about the Power Number Calculator

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Need a high-shear disperser sized for your process?

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