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DAV Heated Regeneration

DAV Series
Externally heated regeneration with vacuum drying, complete with pre-filter and after-filter

Vacuum regenerated adsorption drying is the energy efficient solution for higher volumes of compressed air. Dewpoints to -70°C are possible!

Before entering the dryer, a BOGE ‘F’ series micro-filter removes solids and impurities from the compressed air to 0.01 mg/m3. In the drying tower, the desiccant media removes moisture from the air to a dewpoint of -40°C (standard models).

The parallel tower regenerates the wet desiccant bed. First it de-pressurises to atmosphere, simultaneously the vacuum pump begins to draw ambient air, that is pre-heated on entry, through the wet desiccant to complete the regeneration process.


Brand: BOGE Category:

The advantages of using the BOGE DAV Adsorption Dryer

  • Energy efficient system
    Savings of up to 25% compared to conventional systems
  • 2-stage drying
    Optimised flow distribution through media bed
    Self cleaning media reduces Δp and increases moisture separation
  • Low regeneration temperature
    Vacuum regeneration ensures energy efficient moisture removal at lower temperatures than traditional heat regeneration
  • Vacuum cooling
    After drying the media the heater switches off and the vacuum pump sucks ambient air through the bed to cool it
  • Pressure equalisation on wet side
    Regeneration takes place at atmospheric pressure. Venting tower is therefore total purge loss
  • Consistent pressure dewpoint in operation
    Because ambient air drawn in from the drying process
  • Constant pressure dewpoint at changeover
    Because compressed air re-pressurises dry tower
  • Pressure dewpoints to -70 °C
    Possible as well as the standard -25°C or -40°C
  • Function display
    For pressure, temperature, heater operation, vacuum pump and changeover
  • Alternative energy
    Regeneration using steam, hot water and other is available as an option
  • Modular options:
    Purge air by-pass, thermistor controlled heaters, frequency controlled vacuum pumps