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 150 psig | Ambient air temperature: 38°F to 125°F | Inlet air temperature: 40°F to 110°F
For larger capacities, higher pressures, and custom dryer options, please contact an Mdi representative
➤Click Here for AEHD Series Capacity Correction Factors
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 flow downstream.
• During the drying process, a small amount of 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 tower is depressurized to near atmospheric pressure. The air flowing from valve(B) moves down the tower, removing moisture from 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 air flow 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 4 hours unless the Energy Management System is extending drying time period during low load conditions to a maximum of 12 hours 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 12 hours).
• Various configurations of pre-piped filters and bypass valve package.
• Failure to switch alarm using pressure transducers (monitors for correct vessel pressure during dryer operation, energizes alarm if incorrect).
• Outlet dew point monitoring.
• Optional communications: Profibus-DP, AS-I, CANpen, DeviceNet, and Ethernet.
• NEMA 7 explosion-proof electrical classification (class 1, division 2, group C and D).