Parker Airtek TW Series Heatless Dessicant Air Dryer

  • Can Be Configured For 42-3000 CFM
  • Pressure Dew Point of -40F(-40C)
  • Completely Heatless
Regular price


Maximum Flow Rate
Parker Airtek TW Series Heatless Twin Tower Desiccant Air Dryers remove contaminants in compressed air systems using Pressure Swing Adsorption (PSA) technology. Pressure dewpoint of -40°F (-40°C) and flowrate of 10 - 6000 scfm depending on model.


Parker Airtek TW Series Heatless Desiccant Air Dryers remove water vapor from compressed air through a process known as Pressure Swing Adsorption. A standard pressure dewpoint of -40°F (-40°C) is attained by directing the flow of saturated compressed air over a bed of desiccant.

The most commonly used desiccant is activated alumina, a spherical shaped, hygroscopic material, selected for its consistent size, shape and extreme surface to mass ratio. This physically tough and chemically inert material is contained in two separate but identical pressure vessels commonly referred to as “dual” or “twin” towers.

As the saturated compressed air flows up through the “on line” tower, its moisture content adheres to the surface of the desiccant. The dry compressed air is then discharged from the chamber into the distribution system.

A solid state controller automatically cycles the flow of compressed air between the towers, while the “on line” tower is drying, the “off line” tower is regenerating. Regeneration, sometimes referred to as purging, is the process by which moisture accumulated during the “on line” cycle is stripped away during the “off line” cycle. As dry low pressure purge air flows gently through the regenerating bed, it attracts the moisture that had accumulated on the surface of the desiccant during the drying cycle and exhausts it to the atmosphere.

To protect the desiccant bed from excess liquid, all Parker Airtek TW Series Heatless Air Dryers are designed to work with the natural pull of gravity. By directing the saturated air into the bottom of the “on line” tower and flowing up through the bed, liquid condensate caused by system upset, is kept away from the desiccant and remains at the bottom of the tower where it can be easily exhausted during the regeneration cycle. Counter flow purging ensures optimum performance by keeping the driest desiccant at the discharge end of the dryer.

Heatless dryers in general are the most reliable and least expensive of all desiccant type dryers. Parker Airtek TW Series Heatless Desiccant Air Dryers are the most energy efficient thanks to standard features like, “Variable Cycle control”, “CycleLoc™” and purge flow regulator.


optional features
  • Hydraulic Pump Output – Direct drive hydraulic pump supplies hydraulic power for pickers, bucket lifts, hydraulic tools etc.
  • Diablo Option – Remote radiator reduces compressor housing size.
  • Generator – Generators from 4-10 kw, 120 and 220 volts, belt and direct drive available.
  • Lightning Booster Pak – 12/24 volt D.C. 1200/800 amp booster/alternator package for boost starting equipment.
  • Auto Start/Stop – Pressure and temperature activation.
  • Radio Remote Control – Allows starting, stopping and idle control from up to 200 foot range.
  • Arctic Package – Allows cooling system of unit to tie into chassis, warming unit on the way to job site. Keeps cab/chassis warm while unit is working with vehicle shut off.
  • Summer Package – Air conditioning package keeps the cab cool with vehicle shut off.
  • Alternator Upgrade – Up to 200 amp alternator upgrade allows operation of inverters, lights etc. 40 amp alternator is standard.
  • Stand Alone Packaging – Units can be skid mounted and left on site or moved from truck to truck. Package includes battery box, fuel tank and fork lift skid.
  • Helicopter Package – Includes fuel tank, dual lift points, and battery.
  • Up to 250 Amp High Frequency Welder
  • PASO Positive Air Shut Off
  • OSHA Valve