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Plant Engineering Calculator

Pump Impeller Tip Speed Calculator — Diameter, RPM & Peripheral Velocity

Calculate impeller peripheral tip speed from rotational speed and diameter, with revolutions per second and circumference as audit outputs.

Inputs

Results

Tip speed 46.34 m/s
Tip speed 152.03 ft/s
Revolutions 49.17 r/s
Circumference 0.942 m

Formula

u=πDN/60.

Worked example

A 300 mm impeller at 2,950 rpm has a peripheral tip speed near 46.3 m/s.

Assumptions & limits

  • Tip speed is not a standalone cavitation, stress or material limit.
  • Use OEM limits and applicable mechanical design standards for final selection.

FAQs

What does this Pump Impeller Tip Speed Calculator calculate?

Calculate impeller peripheral tip speed from rotational speed and diameter, with revolutions per second and circumference as audit outputs.

What should I verify before using the result?

Check units, operating point, measured site data and OEM limits. This calculator is a transparent screening tool, not a substitute for equipment selection or code-required design.

Why are intermediate results included?

Intermediate values expose the engineering chain so you can audit assumptions, compare scenarios and catch unrealistic inputs.

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Last updated: 2026-09-17