ABP Blower Purge Twin Tower Desiccant Air Dryer By Nano

The nano ABP Blower Purge Twin Tower Desiccant Air Dryer delivers clean, dry compressed air at a consistent -40°F pressure dew point while slashing energy costs on large systems. Instead of throwing away costly compressed air to regenerate the desiccant, the ABP uses an ambient-air regenerative blower and a low-watt-density heater, cutting purge to an average of just 0 to 2% over a 4-hour cycle. Built for the toughest industrial duty with ASME code vessels and USA construction, the ABP range covers 800 to 6,000 SCFM.

How a blower purge desiccant dryer works

1. Wet compressed air flows through the online tower, where activated alumina desiccant adsorbs water vapor and produces dry air at a -40°F dew point.
2. The offline tower is regenerated using atmospheric air drawn by a regenerative blower and heated by a low-watt-density heater, driving moisture out of the desiccant.
3. A brief dry-air cooling step finishes regeneration, keeping average compressed-air purge to roughly 0 to 2% over the cycle.
4. The towers alternate automatically so one is always drying while the other regenerates, giving continuous dry-air output with minimal compressed-air loss.

How to select your dryer

Size the ABP by your compressed air flow at your operating conditions. Rated flows are stated at 100 psig inlet; capacity must be corrected for lower pressures, higher inlet temperatures and elevation. Match your peak system flow to the model rating, confirm the flange connection size and available electrical supply (460 VAC / 60 Hz), and ensure adequate upstream cooling and drainage.

Key features

• Blower purge design cuts compressed-air purge to an average 0 to 2% over a 4-hour cycle for major energy savings on large systems.
• Consistent -40°F pressure dew point (ISO 8573-1 water class 2).
• Low-watt-density heater with a fully insulated regeneration circuit for efficiency and long life.
• Regenerative blower with rugged TEFC premium-efficiency motor and filtered air intake.
• Mounted nano pre-filters and after-filters included as standard.
• ASME code pressure vessels, UL/cUL compliant, made in the USA with activated alumina; lifting lugs and/or fork lift pockets.

Specifications

• Rated flow: 800 to 6,000 SCFM at 100 psig
• Pressure dew point: -40°F pdp standard (ISO 8573-1 water class 2)
• Particulate: ISO class 2 (1 micron) standard, class 1 (0.01 micron) optional
• Operating pressure range: 60 / 100 / 150 psig (min / design / max); 58 to 250 psig optional
• Ambient temperature: 38°F / 100°F / 120°F (min / design / max)
• Inlet temperature: 38°F / 100°F / 120°F (min / design / max)
• Heater: 18 kW (800 SCFM) up to 120 kW (6,000 SCFM), sized by model
• Power supply: 460 VAC / 60 Hz
• Connections: 3" flange (800 to 1,400), 4" flange (1,600 to 2,500), 6" flange (3,000 to 6,000)
• Construction: ASME vessels, UL/cUL compliant, activated alumina, made in USA

Ideal applications

• Large industrial compressed air systems where purge energy cost matters
• Cement, lumber, pulp and paper, and heavy manufacturing
• Petrochemical and chemical processing
• Food and beverage production
• Any high-flow process requiring a reliable -40°F dew point

Frequently asked questions

What dew point does the ABP achieve?
The ABP delivers a consistent -40°F pressure dew point, meeting ISO 8573-1 water class 2. Lower dew points may be available; consult the datasheet or contact us for your application.

How does blower purge save energy?
Rather than using large volumes of expensive compressed air to regenerate the desiccant, the ABP regenerates with atmospheric air moved by a blower and warmed by a heater. This cuts average purge to about 0 to 2% over the cycle, dramatically reducing operating cost on large systems.

Are filters included?
Yes. Each ABP ships with mounted nano pre-filters and after-filters sized to the model to protect the desiccant and maintain downstream air quality.

What electrical supply is required?
The ABP requires 460 VAC / 60 Hz. Heater size ranges from 18 kW on the 800 SCFM model up to 120 kW on the 6,000 SCFM model.

How do I choose the right size?
Match your peak compressed air flow to the model's rated flow at your actual operating pressure and inlet temperature, then confirm the flange size. Ratings shown are at 100 psig; lower pressure or higher temperature reduces capacity.

For full model dimensions, purge and heater data and correction factors, refer to the nano ABP blower purge desiccant dryer brochure, data sheets and user guide.