Tsurumi Submersible Aeration (1846 Kb) - Ferret

■ 4-4. Notes to the Case that Two or More Aerators are to be installed in a Tank.If there is a need to install two or more aerators having the same output in a tank, decide the place of installationpaying attention to the distance between or among the aerators and the distance between the aerator and thetank’s sidewall. The distance between or among the aerators should be more than the “Main Convection Diameter”in the table of “4-3. Recommended Tank Dimensions (Standard)” on page 4. The distance between the aerator andthe sidewall should be so decided that the main convection might not hit directly on the sidewall.In addition, it shall be taken into account that the area to be convected by one aerator must be small than“Dimension of Sub-convection” in the same table.✳ If above-mentioned distances are smaller than the main convection, the aerator will suck the mixed air-watercurrent, and as a result it may lead to an unsteady operation of the aerator.✳ If the area convected by one aerator is bigger than the sub-convection of each aerator, the sufficiency mixingforce does not spread throughout the tank, and as a result it may allow the sludge to settle at the tank bottom.Main ConvectionMain ConvectionW.LDistance between the installed aerators should begreater than the main convection diameter.Main ConvectionCIRCULAR TANKMain ConvectionSQUARE TANKRECTANGULAR TANKMain Convection5Australian Pump Industries (02) 8865 3500