BD⁺ 100-3000 Desiccant Air Dryers

• High-quality dry compressed air is a must to remove microscopic debris from the surfaces of computer chips and boards.
• Moisture contamination is avoided: no oxidation of micro-terminal strips.
• A continuous flow of dry compressed air at a dewpoint as low as -70°C/100°F.

Food & beverage

• A reliable source of dry compressed air for the preparation and processing of food and beverages.
• Any kind of moisture is eliminated: the free and easy movement
of ingredients, items or food/beverage is guaranteed.

Oil & gas

• Particularly for offshore, high-quality dry compressed air is critical.
• Full protection of your production continuity.
• A continuous supply of dry compressed air available 24/7 at a low dewpoint.

Pharmaceuticals

• A consistent flow of high-quality dry compressed air is vital in the processing and manufacturing of most pharmaceuticals.
• Eliminating any moisture is critical to produce pharmaceuticals as some materials have a physical affinity for moisture.

①Wet compressed air flows upward through the desiccant which adsorbs the moisture, from bottom to top.

The regeneration process

②The blower takes ambient air
③and blows it over the external heater.
④The heated air is then sent through the saturated desiccant, forcing the adsorbed moisture out, from top to bottom.

Switching

⑤After regeneration, the functions of both towers are switched.

Cooling

Zero purge: After the heating, the hot tower desiccant is cooled. Cooling is done by sending air from the hot vessel over a cooler and back into the hot tower, from bottom to top.

Purge: After the heating, the hot tower desiccant is cooled. Cooling is done by expanding dry compressed air from the outlet of the adsorbing vessel over the hot re-activated tower, from top to bottom.

Fully stainless steel high-performance butterfly
valves with actuators ensure long lifetime.

②Advanced control and monitoring system

• Fitted inside a real IP54 cubicle for easy cabling and safety.
• Monitoring all parameters to ensure maximum reliability of installation.

③Low-wattage density heater

• Stainless steel design ensures long lifetime.
• Nickel-plated heater pipe protects against corrosion.
• Heater is installed in an insulated heater pipe for most energy-efficient setup.
• Optionally insulated vessels are available to further reduce heat losses and
increase overall efficiency (standard on the -70°C/-100°F variant).

④Dewpoint Dependent Switching

• Real PDP monitoring (hygrometer).
• PDP display on controller (and alarm).
• The dryer will only switch to the next tower when the desiccant is saturated (based on PDP input). During that period, the dryer consumes no energy.

⑤Galvanized piping with flanged connections

• Flanged piping simplifies maintenance and minimizes the chance of leakage.
• Pipe sizing is optimized to ensure a low pressure drop, resulting in energy savings.

Long-life silica gel desiccant

• High-adsorption silica gel desiccant needs less reactivation energy than other drying agents.
• 2-layer desiccant bed; a water-resistant bottom layer protects the high-performing top layer.
• Pressure dewpoint of -40°C/-40°F as standard (-70°C/-100°F as option).
• Up to 30% extra desiccant overfill to deliver consistent performance even in harsh conditions such as high temperatures and temporary overloads.

Filters

• Pre-filter(s) protect desiccant against oil contamination, increasing desiccant lifetime.
• After-filter protects network against desiccant dust, avoiding network contamination.
• Can be mounted directly on the inlet and outlet of the dryer, for low pressure drop.
• Easy to assemble and maintain as no extra piping or filter connections are required.

Robust and compact design

• Standard frame, including forklift slots and lifting eyes for easy handling.
• Wide vessels ensure a low air speed and a longer contact time.
• Flanges connecting vessels are integrated into the top and bottom shells, lowering the total unit height.