Desiccant Dryers

HHL Series

Desiccant dryers HHL series

For flow rates from 90 – 9.000 m3/h

Benefits and Features

  • Flow rate from 9 m3/h to 9,300 m3/h
  • Heatless regeneration system
  • Compact design, DKC suitable for wall mounting
  • Space-saving, integrated pre-filter and dust filter are included in the delivery
  • Particularly easy to service: desiccant can be active for an extremely long period (up to 5 years)
  • Easy operation and service
  • Pressure indicator for tower pressure
  • Front-mounted operator panel
  • Fully-assembled with necessary pipes and electrical wiring – ready for use

How it works

The HHL series are heatless regenerated desiccant dryers equipped with level 1 control as standard and operate in a 10 minute cycle with a pressure dew point of -40 °C.

Hankison HHL Series desiccant dryers can be individually set to a specific pressure dew point.

  • 4 minute cycle
    For a pressure dew point of -70° C, inlet temperature +35° C

  • 10 minute cycle
    For a pressure dew point of -40° C, inlet temperature +35° C

  • 16 minute cycle
    For a pressure dew point of -20° C, inlet temperature +35° C

  • 24 minute cycle
    For a pressure dew point of +3° C, inlet temperature +35° C

Key features of the HHL

  • Space-saving, integrated pre-filter and dust filter are included in the delivery
  • Compact design
  • Extended contact between compressed air and desiccant for a guaranteed pressure dew point
  • Particularly easy to service: desiccant can be active for an extremely long period (up to 5 years)
  • Moisture indicator changes colour to signal an increase in the pressure dew point at the dryer outlet
  • HHL Series comes with Level 1 controller as standard
  • Optional Level 2 controller for energy savings
  • Easy operation
  • Pressure indicator for tower pressure
  • Front-mounted operator panel
  • Fully assembled with the necessary pipes and electrical wiring – ready for use

The level 2 controller

The Level 2 controller enables a significant reduction in the purge air volume required at reduced loads. The level of purge air used is automatically reconciled with the system requirements, which results in very high energy savings.

Easy to use

  • Safe and reliable control of the adsorption and regeneration phases
  • Electronic level-controlled X-DRAIN® condensate drain and filter monitor as standard

Benefits

  • Measurement of temperature profile through the adsorption heat generated and control of the regeneration phases
  • Selection of 4 operating modes / pressure dew points -70 °C, -40 °C, -20 °C, +3 °C
  • Demand-driven SensaTherm operation for -40 °C, -20 °C and +3 °C
  • Alarm and maintenance notifications with group error contact
  • LEDs to indicate operating mode, tower status, valve status and vessel pressure
  • Alarm LED for tower switching errors, condensate drain faults
  • Electronic display provides information on energy savings, the regeneration process and upcoming maintenance intervals
  • RS-232 interface as standard (optional)