The Free Online Aquaculture Dictionary

Axial flow pumps

Lineshaft Pump

Axial flow pumps can come very large ; This 72" (1.8m) diameter model can deliver 600m3 per minute at a head of 7m.

 

This smaller low head pump is used in the outlet of a trout farm, where it recircualtes water to the ponds in times of low river flow (approx. 500m3hr-1 at 3m head)