MMR Regenerative compressed air and gas dryers use a desiccant to adsorb (adheres to the desiccant) the water vapor in the compressed air or gas stream. The composition of the desiccant is not changed when in use, and the moisture is removed in the regeneration process by applying dry purge air. Regenerative desiccant dryers normally use 2 towers. One tower dries the air from the compressor while the desiccant in the other tower is being regenerated after the pressure in the tower has been reduced to atmospheric pressure.
In the heatless regenerative desiccant type, no internal or external heaters are used but the purge air requirement can range up to 18% of the total air-flow.
The typical regenerative desiccant dryer at 100 psig has a pressure dew point rating of -40°F but dew points down to -100°F can be obtained.
In addition to meeting needs of compressed air applications requiring critical dry air, these heatless desiccant dryers are used also for gases including Argon.
Manufacturing & Metal Fabrication: Argon is a welding shielding gas that enhances arc stability and prevents atmospheric contamination of welding pools. Argon is essential to gas tungsten arc welding (GTAW). It also prevents oxidation during metal production.
Aerospace & Defense: Argon is vital for welding special alloys and for various welding applications. It is essential for laser and light bulb manufacturing. In heat-treating applications, argon is used to create inert environments free of oxygen and nitrogen.
Beverages: Denser than air, argon is used for blanketing wine and flushing oxygen from containers.
Fleet-Based Commercial Services: Used in MRO applications, argon is a vital gas for welding automotive parts and plasma arc gouging.