Regenerative Blowers

The regenerative or side channel blower is a lower cost alternative to lobe blowers for activated sludge aeration in treatment plants, especially for shallow tanks and for small community treatment plants.

Main features of the Regenerative Blower

  • Pressures up to 1400 mBar (20 psi)
  • Flows from 45– 2300 m3/hr
  • Single, two and three stages
  • Oil free
  • No routine maintenance
  • Easy vertical or horizontal installation
  • ISO 9001-2008 certified. Low noise that can be further reduced by installing a silencer on the discharge
  • Explosion Proof motors (optional)
  • Inlet air temperature less than 45 ° C
  • Voltages 1 Ph 120 VAC/ 240 VAC and 3 Ph
  • Frequency in 50 and 60 Hz and frequency variation for variable flow
  • High quality SKF and NSK bearings for long life
  • Insulation Class F IP54 protection
  • Tropicalized finishes and marine environment (optional)

Principle of Operation

Air enters the main channel through the impeller (3) made up of multiple blades, which sucks the air trapped between the blades that enters through the inlet duct (1) and pushes it at high speed. The air then enters the side channel (2). The centrifugal forces of the impeller and a reduced section of the channel raise the pressure and expel the air through the outlet (4).

The impeller is directly coupled to the motor rotor. The blower bearing is located outside the compression zone, which guarantees greater stability at maximum working pressure.

Ease of Installation of Regenerative Blowers

Because the regenerative blower is directly coupled to the motor, it requires fewer parts than a lobe blower, therefore offering an economical and simple installation.