Quincy desiccant air dryers purify compressed air by absorbing water vapor. The units direct the flow of wet compressed air through a bed of highly adsorbent desiccant.

Only Quincy air dryers have Q-Sorb - the first significant improvement in activated alumina in many years - as the adsorbent desiccant. The uniform size of its beads minimizes channeling and allows more efficient use of the entire dryer tower, thus reducing operating costs. Q-Sorb’s higher crush strength and low abrasion characteristic also add to Quincy desiccant air dryer performance as they reduce dusting, which results in longer filter element life, longer desiccant life and lower pressure drop - all moneysaving features.

	QDTH Heatless Desiccant Dryer  These dryers use a small portion of the dried compressed air to purge the off-line tower  Initial cost: Low  -  Operating cost: Moderate to High  -  Maintenance cost: Low

-40° to -100° F dewpoint   35-3100 acfm   14% purge   Microprocessor control

	QDHP Heated Purge Desiccant Dryer  These dryers use less compressed air to purge the off line tower than the heatless series  Initial cost: Moderate  -  Operating cost: Moderately Low  -  Maintenance cost: Low

-40° to -100° F dewpoint   35-3100 acfm   3.5% to 7% purge   Low-watt density heaters

	QDBP Blower Purge Desiccant Dryer     These dryers combine heat with forced ambient air for regeneration   Initial cost: High  -  Operating cost: Moderately Low  -  Maintenance cost: Moderately Low

	+10° to -40° F dewpoint   35-3100 acfm   1.75 average sweep   NEMA 4 - Optional NEMA 7-9