Heatless desiccant compressed air dryer HSHD series

two-stagecompactlow-pressure

Compact and intuitive, Hankison’s HSHD Series Modular Desiccant Air Dryers feature robust communications, are CSA/UL approved, and CRN registered. As powerful as it is versatile, HSHD was designed and proven in Germany to protect moisture sensitive applications requiring low-pressure dew points by delivering dew points of ISO 8573-1: 2010 Class 1 (-100°F, -70°C) and Class 2 (-40°C) with flow rates of 7 to 40 scfm (12 to 68 nm3/h). HSHD—a perfect solution for labs, hospitals, pharmaceutical manufacturing, and other high-tech installations that demand performance and reliability. Compressed air enters the dryer and is directed to Tower 1 by valve (A), and then to the dryer outlet through shuttle valve (B). A portion of the dried air is throttled to near atmospheric pressure by means of orifice (C). This extremely dry, low-pressure air flows through and regenerates the desiccant in Tower 2 and is exhausted through purge/repressurization valve (D) and exhaust muffler (E) to atmosphere. After a set time, the automatic solid state timer closes purge/repressurization valve (D) allowing Tower 2 to repressurize slowly. At the end of 2 minutes, valve (A) shifts and purge/ repressurization valve (D) reopens. The main air flow is now dried by Tower 2 while Tower 1 is being regenerated.