Models: DHP300, DHP400, DHP500, DHP600, DHP750, DHP900, DHP1050, DHP1300, DHP1500, DHP1800, DHP2200, DHP2600, DHP3200
1Inlet flow - Conditions for rating above dryers are: compressed air at dryer inlet: 100°F inlet 100 psig inlet pressure; 100% relative humidity, 100°F ambient temperature, and 5 psi pressure drop.
DHP Series Features:
- • Low-watt density heater saves energy and prevents premature desiccant aging
- • Premium grade desiccant beads enhance surface area and have high crush strength
- • NEMA4 rated electrical enclosure
- • Optional pre-mounted filtration package increases lifetime of desiccant and avoids system contamination
HEATED PURGE REGENERATION
Moist, filtered compressed air enters the pressurized on-line desiccant-filled drying Tower 1 through valve (A). Up-flow drying
enables the desiccant to strip the air stream of moisture. Clean, dry compressed air exits through valve (E) to feed the air system.
Tower 2 (when in regeneration mode) closes valve (B), then depressurizes to atmosphere through muffler (C). Valves (D & G) open
and the heater turns on. A portion of dry compressed air (purge air) is diverted before exiting (E) and passes through the heater.
Hot dry purge air desorbs the moisture from the desiccant as it flows down through Tower 2 to exit at valve (D). Once desorbed, the
heater turns off and cool dry purge air continues to pass until the desiccant bed is cooled. Finally, valve (D) closes and Tower 2 is
re-pressurized. At a fixed time interval, valve (B) will open and Tower 2 will be placed on-line to dry the bed and valves (A & D) will
close. Operations will switch and Tower 1 will be regenerated.
• F0 Package - Piped with no valves
• F3 Package - Piped with 3 valves By-pass
• Explosion Proof