Description
Pneumatech EH-75 Heatless Regenerative Desiccant Air Dryer
Item is in good condition. Dryer was retrieved from working lab. Not tested and sold as is.
The Pneumatech EH 75 heatless regenerative desiccant air dryer provides continuous, dry compressed air by alternating between two towers (one drying, one regenerating) in a 10-minute cycle. It typically uses activated alumina to achieve a -40°F dewpoint. Proper maintenance includes ensuring the dryer is depressurized before removing fill ports for desiccant replacement.
-
- Operating Cycle: Standard 10-minute cycle (5 min drying, 4 min 20 sec regeneration, 40 sec repressurization).
- Desiccant: Activated Alumina (Grade A) is standard.
- Maintenance: Regularly check the 4-way inlet valve and outlet shuttle valves, as they are crucial for switching operations.
- Safety: The unit must be fully depressurized before performing any maintenance or removing vessels
- Capacity: 74 scfm / 125 Nm³/h (based on 100 psi operating pressure).
- Pressure Dew Point (PDP): -40°C/-40°F standard; -70°C/-94°F available as an option.
- Design Profile: Extruded Aluminum Profiles.
- Operating Pressure Range: 4 – 14 barg / 58 – 203 psig.
- Inlet Temperature Range: 1 – 50°C / 34 – 122°F.
- Power Supply: 115VAC ~ 60Hz.
- Inlet/Outlet Connections: 1″ NPT.
- Cycle Time: 4 minutes.
- Controller: Digital microprocessor control (DC1)













