FK 40 - Tri-Canada

Centrifugal pumps
Power consumption
of the pump
pump efficiency
Step 3:
Find t he power consumpt ion of t he pump at t he point in t he diagram where t he power
curve of t he impeller used meet s t he design f low rat e.
Select the motor with the next higher power rating.
Power consumption according to the diagram: N = 26 kW
selected motor: 30.0 kW
Step 4:
Check t he ef f iciency
η
= Q H
η =
× × ρ
367 × N
90 × 75 × 1
367 × 26
Q [m≈/h]
H [m]
N [kW]
ρ [kg/dm≈]
ρ water = 1 kg/dm≈