Desiccant compressed air dryer DRYBERG® AD90

heatless desiccantadsorptionheatless adsorption

Product information
Compact cold-regenerating adsorption dryer designed for stable supply of dry compressed air in small to medium systems.

Overview
Adsorption dryer DRYBERG® AD90, part of the AD 20–110 series. Suitable for nominal flow 90 m³/h and inlet flow range 10.2–119 m³/h. The unit uses replaceable desiccant cartridges to reduce the pressure dew point down to −40 °C. An integrated after-filter retains any desiccant abrasion. Twin-column operation ensures continuous drying while one column is regenerated using a purge of dried compressed air expanded to ambient pressure.

Design & Operation

• Twin-column adsorption dryer with cold (heatless) regeneration principle
• Desiccant filled in cartridges for quick replacement and service
• Integrated after-filter for retention of desiccant particles
• Automatic column switching for uninterrupted operation
• Regeneration by a small purge of dried compressed air expanded to atmospheric pressure

Application

• Provides compressed air with pressure dew point down to −40 °C (depending on operating conditions)
• Suitable for industrial pneumatic systems, painting, instrumentation and applications requiring low humidity and oil-free air
• Recommended for small to medium compressed air installations within the specified flow and pressure ranges

Technical data (table)
Capacity* [m3/m] : 1,50
Capacity* [m3/h] : 90
Connection [inch] : 3/4"
Dimensions (AxBxC) [mm] : 1175 x 281 x 92
Weight [kg] : 49
Volume flow rate range [m3/h] : 10.2 - 119
Operating pressure [bar] : 4 - 16
Ambient temperature [°C] : 1.5 - 50

Operating pressure / Inlet temperature table
Operating pressure (bar g): 4,5,6,7,8,9,10,11,12,13,14,15,16
Inlet Temp. 35 °C : 0,6,0,7,0,8,1,1,1,1,1,2,1,3,1,5,1,5,1,6,1,6,1,7,1,7
Inlet Temp. 40 °C : 0,5,0,6,0,7,0,8,0,9,1,1,1,2,1,3,1,4,1,5,1,6,1,7,1,7
Inlet Temp. 45 °C : 0,4,0,5,0,5,0,6,0,7,0,8,0,9,1,0,1,0,1,1,1,2,1,3,1,4
Inlet Temp. 50 °C : 0,3,0,4,0,4,0,5,0,6,0,6,0,7,0,8,0,9,0,9,1,0,1,1,1,1

Notes
*Calculated at 1 bar (abs.) and 20 °C with 7 bar g operating pressure and 35 °C inlet temperature (saturated inlet conditions). Actual performance depends on operating pressure, inlet temperature and system configuration.

Characteristics / technical specifications

• Model: DRYBERG® AD90
• Nominal flow: 90 m³/h
• Volume flow range: 10.2 – 119 m³/h
• Pressure dew point: down to −40 °C
• Operating pressure range: 4 – 16 bar
• Connection size: 3/4"
• Dimensions (AxBxC): 1175 x 281 x 92 mm
• Weight: 49 kg
• Ambient operating temperature: 1.5 – 50 °C
• Desiccant in cartridges with integrated after-filter
• Cold-regenerated (heatless) twin-column adsorption operation