Centrifugal Pumps
Rotodynamic pumps that move water by converting motor energy into kinetic energy in an impeller and then into pressure as the fluid leaves the volute or diffuser. Head, flow, and efficiency are related through the pump characteristic curve published by the manufacturer.
Engineering Application
Water supply, transfer, booster, circulation, and process pumping duties. Selection matches the system duty point (head at required flow) to a point near the pump’s best efficiency point (BEP), then checks the motor for the absorbed power.
Key Parameters
| Parameter | Unit |
|---|---|
| Total dynamic head | m |
| Flow rate | m³/h |
| Pump efficiency at BEP | % |
| Motor input power | kW |
| NPSH required | m |
Related Engineering Tools
Pump Power Calculator
Calculate hydraulic power, shaft power, and motor electrical power from head and flow rate.
HPump = ρ × g × Q × H / η Pipe Flow & Friction Loss Calculator
Determine pipe velocity, friction head loss, and pressure drop via Darcy-Weisbach or Hazen-Williams.
v = Q / A · hf = 10.67 × L × Q^1.852 / (C^1.852 × D^4.871) Pump Head / Total Dynamic Head Calculator
Compose total dynamic head from static lift, friction losses, minor losses, and residual pressure.
TDH = H_stat + h_friction + h_minor + h_residual Water Tank Storage Calculator
Size cylindrical and rectangular water storage tanks from dimensions or daily demand and residence time.
V = π/4 × D² × H · V = L × W × H