Useful info on specific speed & suction specific speed
Centrifugal Pump Affinity Laws Calculation - Chemical Engineering Site
FAN Calculations | FAN Calculations (Fan Pulley Diameter, Motor Pulley Doameter, Fan RPM, Motore RPM, Adjusted Air Flow Rate) #HVACR #HVAC #FAN #PULLEYSIZE #RPM | By HVAC&R | Facebook
Pump Calculations, Flow Rate, RPM, Head Pressure, & Impeller Diameter
How to Calculate Pump Specific Speed | Pumps & Systems