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Matt Murphy

Senior Applications Specialist - 16 years at Compressor World

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  • Soft-seated check valves
  • Towers filled with extra, high-grade activated alumina
  • Low-watt density heater
  • Heavy-duty air intake filter
  • NEMA 4 Construction
  • 460/3/60 voltage standard
    • 575/3/60 option available for most models
  • Other options available:
    • Filter packages
    • Tower insulation
    • EMS control with FA Supercharger


The Hankison HPD Series Externally Heated Desiccant Air Dryer can maintain the desired dew point (-4°F to -40°F) at maximum rated flow (100% duty cycle) with CAGI ADF 200 inlet standards of 100°F inlet temperature and 100% relative humidity at 100 PSIG.

Previously, applications had to accept a 40°F pressure dew point for seasonal freezing protection. The standard design offers ISO 8573.1 dew points between Class 2 and Class 3 automatically. Class 2 (40°F) dew points protect against freezing during low ambient conditions, while Class 3 (4°F) dew points keep your air system dry during the summer heat. Applications that require Class 2 (-40°F) dew points year-round can choose the Free-Air (FA) Supercharger option package.