What is Heatless Desiccant Air Dryers?
Heatless Desiccant Dryers is also called as Regenerative Desiccant Dryers, Twin Tower Dryer and lesser extent adsorption dryer these dryer provide simplest way to clean a factory by drying compressed air. Heatless desiccant dryer are extremely reliable with very low maintenance and also have few moving parts. In Desiccant air dryer compressed air pass through a twin tower pressure vessels which is filled with desiccant material such as silica gel, activated alumina, or molecular sieve.
Heatless dryers installed with generally a small footprint or we can say it take less space of valuable factory floor. There is no need for constant supervision in heatless desiccant dryers because it doesn’t need replacement for approximately 5 years. Heatless Air dryers is also known as twin tower dryer and both tower work separately like while first tower is in use then the second tower purge air to regenerate and the biggest cost of installing these dryers is this purge air accounts for approximately 15% of the processed air.
HeatlessAir dryers are ideally suited for moisture sensitive applications and also used for instrumentation and process applications as well such as CNC & CMM machines, spray painting, laboratory air & gas applications, Nitrogen generators, powder coating, etc…. Heatless regenerative produce pressure dew points as low as -40°F with optional features like adjustable cycle timer, solid state controls, switching failure alarm , active tower lights and purge saver control increases efficiency at reduced flows and adapted users requirement.
Types of Heatless Desiccant Air Dryers
Heatless (no internal or external heaters): There are no internal or external heaters are used in heatless regenerative desiccant type. It can range up to 18% Purge air requirement from the total air-flow also it has a pressure dew point which is -40°F but can be obtained dew points down to -100°F.
Heated (internal or external heaters): In this type the amount of purge air is approximately 5-10 % of the total air flow and purge air is heated to a high temperature and after that it passes through the desiccant bed.
Role and Features
· Dew point achieved - 40˚C
· Compact and can be mounted on wall
· Low power consumption
· Lightweight Aluminum construction, no rusting
· Specially graded desiccants for optimum performance
· Equipped with pre filter & internal post filter
· Quality as per ISO 8573.1 class 3
· Range from 5 CFM to 100 CFM
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