Parker Pneumatic
PTW Heatless Desiccant Air Dryers

Parker PTW Series Heatless Desiccant Air Dryers remove water vapor from compresses air through a process known as pressure swing adsorption. Pressure dewpoints ranging from -40°F (-40°C) to -100°F (-70°C) are attained by directing the flow of saturated compressed air over a bed of desiccant. 

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  • Pre-filter and after filters included with dryers
  • Solid state controller
  • CycleLoc™ demand control
  • Variable cyle control (models PTW75 - PTW800 SCFM)
  • Purge Flow indicator
  • Purge flow regulator (models PTW75 - PTW800 SCFM)
  • Repressurization circuit (models PTW75 - PTW800 SCFM)
  • Control air filter (models PTW75 - PTW800 SCFM)
  • Safety valves
  • Pressure equalization
  • 150 PSIG design standard
  • Moisture indicator (models PTW75 - PTW800 SCFM)


  • DDS Light / DDS (dewpoint dependent switching)