Pump Power & Motor
LiveHydraulic and shaft power, margin and the standard motor size for a duty
m
%
From the pump curve at the duty point
Water = 1.0 · Seawater ≈ 1.03
%
The Pump Selector uses 15%
Formula
P_hyd = ρ · g · Q · H / 1000
P_shaft = P_hyd / η
P_motor ≥ P_shaft × (1 + margin)
P = kW · ρ = density (kg/m³) = SG × 1000 · g = 9.81 m/s² · Q = m³/s · H = m · η = pump efficiency
Shaft (Absorbed) Power
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Enter flow, head and pump efficiency