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Engineering blueprint comparing Specific Speed (Ns) impeller geometries (Radial vs Axial) and Suction Specific Speed (Nss) cavitation risks.
Specific Speed (Ns) & Suction Specific Speed (Nss): Formulas & Calculation Guide hydraulic design impeller geometry nss 11000 rule pump reliability specific speed ns suction specific speed nss Jan 21, 2026

Engineers often reach for a single index when they want to predict a centrifugal pump’s “personality” before seeing a drawing. That index is specific speed, and it becomes far more useful once it is t...

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