Mattei

Industrial Air Compressors

Small - Medium size users
100 Series
200 Series
400 Series
500 Series
1000 Series

Medium - Large size users
2000 Series
3000 Series
4000 Series
6000 Series
8000 Series

High Energy Efficiency Solutions
OPTIMA - Variable Speed Drive
MAXIMA - Fixed Speed

Energy Saving Solutions
Data Logging
Heat Recovery
Multicomp II
Maestro
MicroC

Accessories for Compressed Air

HTMD Dryers
MD Dryers
Filters
Receivers
Condensate Drains

HTMD Dryers

ENERGY SAVING REFRIGERATING DRYERS

Water vapour in compressed air installations can cause pipes' erosion, wear of pneumatic tools and hydraulic losses in pneumatic cylinders, with serious damages to production or products' quality. By installing Mattei's HTMD dryers, these effects can be avoided.

Technical Specifications

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Operating Principle

HTMD dryers are designed to offer top performances 24 hours a day with very low maintenance costs.


1. Inlet Air
2. Outlet Air
3. Air/Air Exchanger
4. Evaporator
5. Separator
6. Filter
7. Valve
8. Refrigerant Compressor
9. Freon Condenser
10. Fan
11. Freon Filter
12. Capillary Tube
13. Charging Valve
14. Thermostat

Mattei's HTMD air dryer is equipped with:

  • refrigerating air/gas exchanger, with condensate drain containing stainless demister;
  • air/air exchanger to save on refrigerating power (standard from HTMD 12 model onwards);
  • condensate drain through a timed valve (available from HTMD 03 to HTMD 64);
  • condensate exhaust through an intelligent electronic condensate drain with level control; this drain can discharge condensate without any leaks in compressed air (standard from HTMD 77 to HTMD 170);
  • both drains are installed outside the dryer and are preceded by a cock, with significant maintenance advantages;
  • Energy Saving on/off operating mode; when the compressor operates in on or off load regimes, the HTMD dryer will work only if necessary, thanks to its cooling storage system.