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Investors Relations & Haldex information



For your integrated purge applications

The Haldex DRYestTM is designed to provide your air brake system with clean air utilizing low initial system costs and ensuring extended system life. This is accomplished by providing more integrated features than any other air dryer on the market. DRYest is available with integrated: turbo protection valve, governor, regeneration valve, muffler and heater. DRYest adapts to fit YOUR application.

Typically, this air dryer is used in a system where the secondary tank works in conjunction with the regeneration valve to purge the dryer. However, DRYest can be used with auxiliary purge tanks or can even be used with European unloader systems where the compressor unloads through the dryer.

Key benefits:

  • Multi-Treatment Cartridge (MTC) ensures dry system air
  • Extra compact size allows for easy installation
  • Integrated turbo protection valve reduces engine horsepower loss, improving fuel efficiency
  • Integrated regeneration valve ensures sufficient system air is available

What sets us apart: 

  • Integrated muffler provides superior quiet operation
  • Integrated governor eliminates existing governor and related piping
  • High capacity cartridge (MTC) prolongs service intervals.


  • Integrated heater as option for both 12V and 24V
  • With or without integrated governor
  • System regeneration or thru purge tank
  • NPTF or Metric threads.


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