Vane Pump Calculator

Calculate flow and pressure performance for fixed and variable displacement vane pumps.

Input Parameters

Results

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Displacement
in³/rev
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Flow Rate
GPM
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Eccentricity
in
--
Vane Tip Speed
ft/min
Note: Vane tip speed should not exceed 4000 ft/min. Balanced vane designs handle higher pressures (up to 3000 psi).

Reference

Eccentricity e = R_ring - R_rotor Displacement ≈ 2π × e × (R_ring + R_rotor) × Width Flow = (Disp × RPM × η_vol) / 231 Tip Speed = 2π × R_ring × RPM / 12