HST™ Turbocompressor

The modern and silent HST™ turbocompressor features an advanced design with proven magnetic bearing technology and a high-speed motor driven through a built-in frequency converter. HST turbocompressors are widely used in wastewater treatment plants and other low-pressure industrial processes.


Due to its innovative design, the small-footprint HST turbocompressor has no wearing parts nor lubricants, thus requiring minimal maintenance. The unique drive technology enables optimal operating efficiency with minimized energy consumption. It can operate either as a single compressor or as a group of compressors via a number of interface choices, enabling remote or local control of both flow and pressure over the full operating range.

Large flow air supply for aeration of wastewater provided by a group of HST turbocompressors

Main benefits

  • High efficiency, guaranteeing optimal life cycle costs
  • Low noise: no need for additional soundproofing
  • High reliability
  • Wear-free, requiring minimal maintenance 
  • Simple design with integrated components 
  • Accurate flow measurement 
  • Vibration-free, ensuring less stress for pipe work
  • Pulsation-free air distribution allows finer air bubbles for more efficient aeration 
  • Fully certified
  • Operates alongside all types of conventional blowers
  • Numerous possible installation arrangements
  • Operates in a variety of environments

Main applications

  • Aeration for treatment of municipal and industrial wastewater
  • Industrial applications

Key characteristics

Air flow range
1,000–16,000 Nm³/h
Pressure range
30–120 kPa

Energy saving aeration of wastewater with HST compressors

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