Desiccant compressed air dryer DRYBERG® AD

adsorptionheatless adsorptionhigh-capacity

Overview Compressed-air adsorption dryers DRYBERG® AD / AD-CT remove moisture from compressed air to protect pneumatic systems and processes. Series cover flows from 30 Nm³/h to 3000 Nm³/h. Cold-adsorption versions reach very low pressure dew points (typically -40 °C to -70 °C depending on model).

Main models

• DRYBERG® AD 30 - 110: compact adsorption dryers for flows 30–110 Nm³/h, multiport and multi-voltage options.
• DRYBERG® AD 150 - 3000: twin-tower industrial units for continuous drying (150–3000 Nm³/h and intermediate variants).
• DRYBERG® AD - CT: oil-free version with activated carbon column for oil-free compressed air (configurations achieving ISO8573-1 class 1.2.0).

Operating principle Two beds filled with desiccant operate alternately: one adsorbs moisture under pressure while the other regenerates at ambient pressure using a small portion of the dried compressed air expanded to ambient pressure. Switching ensures continuous operation without pressure loss at the outlet.

Technical data - DRYBERG® AD 30 - 110 (excerpt)
Type | Connection | Flow (m³/h) | Dimensions A x B x C (mm) | Prefilter | Dust filter | Weight (kg)
AD30 | G 1/2" | 30 | 694 x 470 x 430 | F02SW | F02DW | 20
AD40 | G 1/2" | 40 | 794 x 470 x 430 | F02SW | F02DW | 36
AD55 | G 1/2" | 55 | 894 x 470 x 430 | F03SW | F03DW | 40
AD70 | G 1/2" | 70 | 994 x 510 x 430 | F03SW | F03DW | 58
AD90 | G 3/4" | 90 | 1198 x 510 x 430 | F04SW | F04DW | 65
AD110 | G 3/4" | 110 | 1348 x 510 x 430 | F04SW | F04DW | 73

Technical data - DRYBERG® AD 150 - 3000 (excerpt)
Type | Connection | Flow (Nm³/h) | Flow (Nm³/min) | Dimensions A x B x C x D (mm) | Prefilter | Dust filter | Weight (kg)
AD150 | G 1" | 150 (2,5 Nm³/min) | 2,5 | 1304 x 853 x 745 x 650 | F06SW | F06DW | 174
AD210 | G 1" | 210 (3,5 Nm³/min) | 3,5 | 1543 x 853 x 745 x 650 | F06SW | F06DW | 212
AD340 | G 1 1/2" | 340 (5,7 Nm³/min) | 5,7 | 1531 x 1008 x 954 x 715 | F09SW | F09DW | 354
AD480 | G 1 1/2" | 480 (8 Nm³/min) | 8,0 | 1630 x 1008 x 954 x 715 | F09SW | F09DW | 375
AD600 | G 1 1/2" | 600 (10 Nm³/min) | 10,0 | 2090 x 1008 x 954 x 715 | F13SW | F13DW | 475
AD820 | G 2" | 820 (13,7 Nm³/min) | 13,7 | 1898 x 1173 x 1243 x 900 | F15SW | F15DW | 718
AD1000 | G 2" | 1000 (16,7 Nm³/min) | 16,7 | 2198 x 1173 x 1243 x 900 | F20SW | F20DW | 851
AD1200 | G 2" | 1200 (20 Nm³/min) | 20,0 | 2298 x 1173 x 1243 x 900 | F20SW | F20DW | 890
AD1400 | DN 80 | 1400 (23,3 Nm³/min) | 23,3 | 1400 (indicative dimensions) / approx. weight 830 kg
AD1700 | DN 80 | 1700 (28,3 Nm³/min) | 28,3 | indicative dimensions / approx. weight 1120 kg
AD2000 | DN 80 | 2000 (33,3 Nm³/min) | 33,3 | indicative dimensions / approx. weight 1290 kg
AD2500 | DN 100 | 2500 (41,7 Nm³/min) | 41,7 | indicative dimensions / approx. weight 1450 kg
AD3000 | DN 100 | 3000 (50 Nm³/min) | 50,0 | indicative dimensions / approx. weight 1750 kg

DRYBERG® AD - CT (oil-free) — items included

• Control and monitoring with compressor unload-ready function.
• PUREBERG® F FW / F SW two-stage prefilter with drain (oil/particle/droplet separation).
• Activated carbon OILFREE CT column (manometer included).
• PUREBERG F DW final filter (manual drain).
• Integrated oil test indicator.

Advantages

• Compact design for simplified installation and maintenance.
• Wide flow coverage: 30–3000 Nm³/h depending on model.
• Lower acquisition cost for cold-adsorption designs vs. heated regeneration.
• AD-CT option for oil-free compressed air meeting high-purity requirements.
• Continuous operation without outlet pressure loss thanks to tower switching.

Technical features / specifications

• Achievable pressure dew point: typically -40 °C to -70 °C depending on model and configuration.
• Flow range: 30 Nm³/h (AD30) to 3000 Nm³/h (AD3000).
• Architecture: twin-tower adsorption beds; small models may use cartridge desiccant for simplified maintenance.
• Regeneration: by expansion of a portion of dried compressed air (cold adsorption); ADP models (thermal regeneration) use external heat source.
• Control: controller with LCD display (AD models) for cycle management and monitoring functions.
• Filters: prefilter and final filter according to model (references F02SW ... F20DW).
• Connections: G thread sizes or DN for larger models.
• Options: multiport compact versions, multi-voltage for some small models.
• Construction: columns, valves, manometers, support frames and filter housings; filter elements installed per configuration.