Aerator Size (HP) RPM 1ZcmDia. (ft) 2Depth(ft) 3ZODDia. (ft) ImpingementDia. (ft) 4GPM 1 1800 20   65 6.5 1400 2 1800 28 90 6.5 1500 3 1800 40 6 145 13 1550 5 1800 50 -------- 160 15 2900 7.5 1800 55 170 18 4100 10 1800 58 8 180 18 4600 15 1800 65 200 20 5500 20 1800 72 ------- 210 20 6000 25 1800 80 250 20 8200 10 1200 60 180 16 5400 15 1200 70 210 18 8400 20 1200 80 10 250 20 9300 25 1200 85 275 24 11000 30 1200 90 290 24 11800 40 1200 95 ------ 325 25 15750 50 1200 110 330 25 17900 60 1200 115 350 28 18600 75 1200 130 380 30 22800 40 900 115 12 335 25 17300 50 900 120 340 28 23800 60 900 125 360 30 26000 75 900 135 385 35 29400

¹ ZCM: Zone of complete mix in typical activated sludge process.
² Depth: Normal depth where zone of complete mix (ZCM) and zone of oxygen dispersion (ZOD) are accurate.
³ ZOD: Zone of oxygen dispersion.
⁴ GPM: Direct pumping rate through the volute.
CWTR:
    Clean Water Transfer Rate
    EPIC direct drive floating mechanical aerators are capable of providing a CWTR
    of 3.0 lb O2/Hr/BHP in appropriate conditions.

NOTE:
This data is for general approximate use only. Specific performance is contingent upon basin volume, geometry, power density, etc. Please contact EPIC International or your process-consulting engineer for specific applications.