ATB-HSA surface aerator from 3 to 110 kW

Product description

Direct drive high efficiency surface aerator with optimized centrifugal impeller
Micro bubble formation due to optimal transfer of kinetic energy into the water surface
High oxygen dispersion over large surfaces, optimized mixing capacity even in deep basins

Applications

SBR plants
Activated sludge plants
Aerobic digesters
Aerated lagoons and basins
Cooling of industrial waste water with high temperature

Working principle

The HSA aspirates the water from the bottom and sprays it back on the surface. The spray is horizontally injected into the water surface over 360° and the turbulence creates micro bubbles which are pushed downwards. The result is maximum oxygen transfer efficiency. The flow pattern generates a perfect oxygen dispersion and full homogenization even in deep basins and on large surfaces.

The installation and operating instructions
for the HSA aerator can be found here

Functional sketch of a HSA surface aerator

Application examples of the HSA surface aerator

Here you can see the HSA surface aerator in action

Here you can request
the HSA surface aerator

Flow investigation ISATEC GmbH Aachen

digital representation of the streamlines in the basin at steady state — Streamlines in the basin at steady state

digital representation of the streamlines — Streamlines

Flow velocity of a 7,5kW aerator in 10x4m basin

7,5kW aerator in 10x4m basin — Streamlines of a 7.5kW aerator in a 10x4m basin

digital representation of the streamlines only in one half of the basin — Streamlines shown only in one half of the basin

digital representation of the estimated spray zone with high speed — Estimation of the spray zone with high speed

Flow velocity of a 3kW aerator in 10x4m basin

3kW aerator in 10x4m basin — View of a 3kW aerator in a 10x4m basin

Materials

Motor: epoxy coated, cast iron
Float + cone / cross: AISI304
Motor flange support: AISI304
Impeller: AISI304
(other materials on request)

Accessories

Motor with heater
Cone extensions for deeper basins
Mooring cables and springs
Mooring anchors or piles
Mooring posts
Anti-erosion-plate for lagoons
Cable floats

Dimensions and Motor Data¹

Aerator Type	Motor power [kW]	Rated voltage [V]	Rated current² [A]	Rated speed [U/min]	Ø Float [mm]	Standard height [mm]	Weight [kg]
HSA-030	3,0	400	5,9	1460	1000	1398	132
HSA-040	4,0	400	7,9	1460	1000	1418	136
HSA-055	5,5	400	10,5	1470	1250	1872	208
HSA-075	7,5	400	14,3	1470	1250	1872	210
HSA-110	11,0	400	20,5	1475	1500	2151	339
HSA-150	15,0	400	28,5	1475	1500	2179	355
HSA-185	18,5	400	35,0	1470	1800	2411	468
HSA-220	22,0	400	41,0	1470	1800	2459	475
HSA-300	30,0	400	55,0	1470	2000	2871	650
HSA-370	37,0	400	66,0	1478	2100	2944	805
HSA-450	45,0	400	80,0	1478	2100	3004	842
HSA-550	55,0	400	96,0	1482	2300	3246	1039
HSA-750	75,0	400	139	990	3000	4130	2145
HSA-900	90,0	400	165	990	3000	4385	2295
HSA-1100	110,0	400	201	990	3000	4725	2391

¹ All values are indicative. ATB WATER GmbH reserves the right to adjust these values at any time without prior notice.
² Values valid for power supply 400 V / 50 Hz. The working range is from 380 to 415 V, amps value may differ.

Here you can download all information
as a data sheet