Ultrapure HL-ALG
Heatless Adsorption Dryers

When your organization requires a high volume of purified breathing air for industrial or medical applications, the Ultrapure HL-ALG range of heatless regenerated adsorption dryers delivers compressed air at pressures up to 16 bar.

To meet your needs even in high ambient temperatures or environments with elevated humidity levels, the drying process – based on adsorption of water molecules out of a gas stream using hygroscopic desiccant materials – can achieve pressure dewpoints of -40°C or lower at 7 bar. Also, CO₂, SO₂ and NO_X are removed during the drying process.

The regeneration of saturated desiccant is achieved by using a partial stream of dry, purified compressed air for the desorption of water and other contaminants.

In the AK/OX stage, activated carbon adsorbs oil vapor and hydrocarbons, while a special catalyst converts carbon monoxide (CO) into carbon dioxide (CO₂). The system includes two pre-filters and an after-filter for added purification.

Constructed of steel, the pressure vessels and pipe system include long-life shuttle valves and solenoid membrane valves for added reliability and ease of maintenance.

Features

Activated Carbon Adsorber and OX Catalyst

• Provides high adsorption capacity and removal of oil vapors, hydrocarbons and odors. Carbon monoxide is oxidated via the OX catalyst to a residual content below the specified level for breathing air.

Standard Pre- and After-Filters

• High-efficiency filters featuring innovative UltraPleat™ media technology add to purification with the removal of solid particles and oil and water aerosols.

Electronic Zero-Loss Condensate Drain

• Condensate is collected in the system’s pre-filters and is automatically drained without any loss of compressed air under normal operating conditions. Built-in alarm warns of excessive condensate build-up.

Electronic Circuit Board Controller

• Enables automated control of all phases of the drying and regeneration cycle. Superplus models with the Ultraconomy dewpoint monitoring and control system can automatically trigger the regeneration process.

Applications

• Medical/Hospital*
• Laboratories
• Industrial Breathing Air
• Automotive/Painting