Capacity rated in accordance with CAGI ADF 200 @ 100 psig, 100°F inlet, 100°F ambient and a PDP of -40°F
Operating pressure: 60 to 180 psig (models 70 - 750); 60 - 135 psig (models 1,000 - 8,000)
Ambient air temperature: 38°F to 120°F
Inlet air temperature: 40°F to 120°F
For larger capacities, higher pressures, and custom dryer options, please contact an Mdi representative
➤Click Here for Capacity Correction Factors Chart
How It Works
• Compressed air flows through the pre-filter to remove oil and then enters the on-line Tower 1 through valve (A).
• Air moves upward, where the desiccant removes moisture from the air stream. The majority of clean, dry compressed air exits valve (B) and cycles through the after filter to then flows downstream.
• During the drying process, a small amount of the clean air exiting valve (B) travels to Tower 2 (shown in regeneration mode) to assist in the regeneration process
• To regenerate Tower 2, valve (C) opens and the tower is depressurized to near atmospheric pressure. The air flowing from valve (B) moves down the tower, removing moisture from the desiccant bed. Once it travels to the bottom of Tower 2, it exits the tower through valve (C) and the exhaust muffler to ambient.
• Once Tower 2 is fully regenerated, valve (C) will close, repressurizing Tower 2 to line pressure with the slight airflow coming through valve (B).
• Next, valve (D) will open to depressurize Tower 1 and valve (A) will switch (not pictured), directing wet incoming air to Tower 2 for drying while Tower 1 is regenerating the desiccant bed.
• This process will repeats continuously every 5 minutes unless the Energy Management System is extending drying time period during low load conditions to a maximum of 30 minutes each cycle. The Energy Management System continually monitors the mid-bed humidity level in the drying tower to save energy by extending the drying cycle (up to 30 minutes).
• Remote start/stop control
• Stainless steel desiccant supports and air diffusers to prevent channeling
• Counter current regeneration, upflow drying, and downflow depressurization
• 3/16" premium grade F200 activated alumina high capacity desiccant for pressure dew point performance
• Easy installation with single point connection for electrical supply power and inlet/outlet air connections
• Dry relay contact alarm for remote indication of system alarms
• Adjustable (5 & 10 minute) NEMA cycle
• Standard communication through RS-232/RS-485 combo port