Single Tower Deliquescent Air Dryers (D-Series)

AVP carries a full line of Van Air Systems’ D-Series Compressed Air Dryers which are single tower deliquescent air dryers for stationary applications for removing harmful water vapor from compressed air lines.

How D-Series Compressed Air Dryers Work

When used with the Dry-O-Lite desiccant, the D-Series Compressed Air Dryers automatically provide a dew point that is approximately 20°F lower than temperature of the air at the vessel inlet. For example, if the air inlet temperature is 80°F, the D-series Dryer delivers a 60°F dew point. If the air inlet temperature is 50°F, the dryer delivers a 32°F dew point.

Made for a wide range of applications, these compressed air dryers protect against freeze-ups in the winter and liquid in the summer. D-Series Compressed Air Dryers may be installed inside or outside, and with a pressure drop less than 1% of the operating pressure, making them ideal for low pressure applications. These deliquescent compressed air dryers have no moving parts or electrical components and are well suited for use in dirty and hazardous locations.

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  • Low capital and operating cost
  • No power required for operation
  • Low pressure drop
  • Prevents airline freeze-ups
  • Steel mills
  • Saw mills
  • Lumber yards
  • Ready-mix concrete plants
  • Asphalt plants
  • Cement production
  • Mining
  • Digester gas and landfill gas
  • General plant air for preventing airline condensation
  • Dirty and hazardous environments
  • Remote locations with limited or no electricity

Model D2 (7 scfm)Model D2 (7 scfm)

  • Manual drain valve (1/4″ NPT)
  • Sight window for checking desiccant level
  • Epoxy interior coating
  • PVC bed support grid
  • Epoxy exterior finish
  • 10 year vessel warranty

Models D4 and D8 (10 & 50 scfm)Models D4 and D8 (10 & 50 scfm)

  • Manual drain valve (1/2″ NPT)
  • Sight window for checking desiccant level
  • Vessels built and stamped to ASME code
  • Epoxy interior coating
  • Epoxy coated carbon steel bed support grid
  • Primer and enamel exterior finish
  • 10 year vessel warranty

Models D12 through D36 (75 - 850 scfm)Models D12 through D36 (75 – 850 scfm)

  • Manual drain valve (1″ NPT)
  • Two sight windows to check desiccant level
  • Elliptical direct entry hatch cover
  • Pressure relief coupling
  • Vessels built and stamped to ASME code
  • Epoxy interior coating
  • Epoxy coated carbon steel bed support grid
  • Primer and enamel exterior finish
  • 10 year vessel warranty

Models D42 through D156 (1250 - 16,000 scfm)Models D42 through D156 (1250 – 16,000 scfm)

  • Manual drain valve (1″ NPT on models D42 through D54, 2″ NPT on D60 and larger)
  • Two sight windows to check desiccant level
  • Elliptical direct entry hatch cover
  • Inspection coupling
  • Pressure relief connection
  • Vessels built and stamped to ASME code
  • Epoxy and polyurethane interior coating
  • ABS plastic bed support grid
  • Primer and enamel exterior finish
  • 10 year vessel warranty
  • Pressure gauge
  • Canadian Registration Numbers
  • Temperature gauge
  • Motorized or zero loss automatic ball valve drain
  • Combination pressure /temperature gauge
  • Ultrasonic level switch
Other Single Tower Deliquescent Dryers