Vortex Impellers

Carol Mund

If you been in the market for a new pond pump, it’s possible that you’ve noticed some pumps having a vortex impeller.   While commonly used in the sewage industry because of their ability to pump solids, vortex impellers work well in the ponding industry for the same reason.

TidalWave2 from Atlantic Water Gardens

Vortex impeller’s design allows for the recessed impeller to create a 2 stage process:

  • First, the impeller produces a swirling whirlpool action, or a liquid vortex, in the water in and around the vanes.
  • Second, a secondary vortex is created in the volute that pushes the water out to discharge.

The likelihood of wear to the impeller is severely dimensioned because very little of what’s being pumped comes into contact with it.  This also makes it easy to pump stringy materials.

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