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draft tube

the flared passage leading vertically from a water turbine to its tailrace.
Origin of draft tube
1840-50 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for draft tube
  • Total removal of draft tube piers may not be a possibility due to structural reasons.
  • Water from the turbine exits through the draft tube to the tailrace.
  • Raw water and chemicals mix with previously formed lime slurry in a centrally located draft tube with impeller.
  • Some problems were experienced with the gear boxes for the draft tube mixers, however that problem has been resolved.
  • If tabs are being used at the exit of the draft tube, they must be removed prior to this measurement.
  • The culture was agitated either by use of a draft tube or by a turbine agitator and baffle system.
  • The mixture of solids and water flows down a draft tube.

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