Depending on how the pump impeller pumps the water w.r.t to the plane of motor shaft, centrifugal pumps are classified as radial, axial and mixed flow.
Radial Flow- High Pressure, Low Flow rate pumps
Axial Flow- Low pressure, High Flow rate pumps
Mixed Flow - Balanced pressure & flow rate.
Now that you know the classifications, you can decide;
Radial Flow - High Pressure Applications like drip, sprinkler, rain gun etc
Axial Flow - Low pressure Applications like storage tank, flood irrigation etc
Mixed Flow - If the numbers of your pressure & flow required meets the models offered
Hope this helps!