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Annular Multi-Nozzle Eductors

Principle of Operation of Annular Multi-Nozzle Eductors

Fig. 235 Annular Multi-Nozzle Water Jet Eductors are designed to handle solids and semi-solids. Nozzles on the periphery of the throat introduce the pressure water. The pressure water creates a vacuum which draws in and entrains the material being handled and all flow discharges through the discharge connection. All suction flow is in a straight line through the eductor.

Sectional drawing of Figure 235 Annular Multi-Nozzle Eductor with sil-brazed connection
Figure 235 Annular Multi-Nozzle Eductor used to handle solids and semi-solids.

Fig. 235 Annular Multi-Nozzle Eductors operate at highest efficiency in large sizes and at low discharge heads. Because these eductors have high air handling capacities, they are particularly well suited for priming large pumps such as dredging pumps which frequently encounter air pockets.

  • Annular Multi-Nozzle Eductor used in mixing dry powder.
Tank Mixing Eductor mixing dry powder
Fig. 235 Eductor Used in Mixing Dry Powder.
Mixing dry powder and a liquid prior to discharge into a tank is accomplished through the use of a Fig. 235 Eductor as shown here. Pressure liquid enters the eductor, entrains the powder, mixes the two in the venturi of the eductor and discharges the mixture into a receptacle. The streamline eductor design provides maximum efficiency in this operation.