Air dryer(desiccant air dryer) hsd-10wxf Desiccant compressed air dryer (heatless purge and externally heated purge) 1). Heatless purge desiccant air dryer Inlet temperature: 0~45 celsius degree Inlet oil content: 0.01ppm Working pressure: 0.6~1.0mpa Dew point: -20~-70 celsius degree Purge air: 12% Desiccant: activated alumina & molecular sieve Purge mode: heatless purge Working method: continuing alternation between two towers Working periods: t=10~20min. Control mode: micron computer auto controlling Installation mode: indoor, non-basement 2). Externally heated purge air dryer Inlet temperature: 0~45 celsius degree Working pressure: 0.6~1.0mpa Dew point: -40~-70celsius degree Purge air: 4~6% Desiccant: activated alumina & molecular sieve Purge mode: externally heated purge Working method: continuing alternation between two towers Working periods: t=120~140min. Control mode: micron computer auto controlling Installation mode: indoor, non-basement