Quincy QHD Heatless Desiccant Dryer
In heavy-duty industrial operations, water vapor in compressed air equipment can lead to premature failure, corrosion, frozen air lines, quality control issues and a range of other operational problems. A desiccant air dryer system purifies compressed air by absorbing moisture. You can find these systems in any industrial application in which reliable equipment and exceptional quality control is necessary.
Quincy Compressor manufactures a full line of desiccant air dryer systems. Our products provide air purification from -40°F PDP down to -100°F PDP. These dryers are built and designed to provide the smallest footprint possible while ensuring maximum performance. Quincy desiccant dryers have ASME and CRN designed pressure vessels standard. Also, standard with the desiccant dryers is a 2-year package warranty and a 5-year valve warranty.
QHD Heatless Desiccant Dryer
Quincy QHD heatless desiccant dryers use a small portion of dried, compressed air to purge and regenerate the off-line tower. The QHD has been engineered to ensure optimal performance and efficiency in a range of different applications while keeping downtime to a minimum.
The QHD series of desiccant dryer systems includes 13 models that deliver between 230 and 3,400 CFM of clean, dry air at a pressure of 100 psig. All feature a heavy-duty steel base and dual tower configuration that regenerates automatically.
Under normal operation, air is forced upwards through the drying tower, where moisture and contaminants are removed and a small amount — 15% — of air is diverted downwards through the regeneration tower where it depressurizes the desiccant bed to ambient conditions. Overall velocities are kept below 50 feet/minute so that air remains in contact with the desiccant for a minimum of 4.5 seconds. The entire process follows a 6-10 minute NEMA cycle, which consists of three to five minutes of drying time, 2 minutes and 25 seconds to 4 minutes and 20 seconds of regeneration and 40 seconds of re-pressurization.
Like all our desiccant-type air dryers, the QHD heatless air dryer system includes high-quality components and is backed by a two-year comprehensive warranty.
- Initial cost: Low
- Operating cost: Moderate to high
- Maintenance cost: Low
- -40° to -100°F dew point
- 230 – 3,400 cfm
- 15% purge
- Microprocessor control