Pump Speed vs Power (\( \frac{N1^3}{N2^3} = \frac{Hp1}{Hp2} \)):

Where:

• \( N1 \) is the initial pump speed, in revolutions per minute (rpm).
• \( N2 \) is the final pump speed, in revolutions per minute (rpm).
• \( Hp1 \) is the initial pump power, in horsepower (hp).
• \( Hp2 \) is the final pump power, in horsepower (hp).