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Selecting a Seawater Pump: Material, Sizing & NPSH

IndustrialMind · 2026-06-20 · 5 min read

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Why material comes first

For high-chloride seawater, specify duplex / super-duplex stainless wet-ends — bronze impellers pit.

Sizing to the best-efficiency point

Match flow & head to the BEP — example: 100 m³/h @ 80 m head.

The NPSH trap

Always verify NPSHr vs your suction conditions before quoting.