FS-Curtis DHP Series
FS-Curtis DHP Series compressed air dryers — high-capacity refrigerated dryer configurations sized for medium to large industrial compressed air systems. DHP Series scales refrigerated drying to higher SCFM flow rates than DHB while maintaining standard 35 to 50 degree F pressure dew point output. Suited for high-throughput shops, multi-bay facilities, and industrial production environments. Alamo Equipment is an authorized FS-Curtis dealer with sizing consultation, installation support, and parts availability nationwide.
FS-Curtis DHP Series FAQs
DHP is a line of heated purge desiccant air dryers in large flow capacities, with models spanning roughly the 1,050 to 2,600 range and above. Heated purge reduces the compressed air consumed for desiccant regeneration compared with a heatless design.
A portion of dried air is heated before passing through the offline desiccant tower to drive off moisture. Because heated air carries more moisture, less of it is needed than in a heatless design, reducing the compressed air lost to regeneration.
Heated purge still uses some dried compressed air for regeneration; blower purge substitutes ambient air moved by a blower and largely eliminates that loss. Blower purge is more efficient and costs more in capital. Which wins depends on flow rate, run hours, and energy cost.
When flow rates are high enough that heatless purge losses are costly, but not high enough or the run hours not long enough to justify the additional capital of a blower purge machine. It is the middle option between the two.
Compressed air plus electrical supply for the regeneration heater. The heater load can be significant — confirm the electrical requirement for the specific model against your available service and panel capacity before ordering. Check the heater's amperage draw against your panel before committing to a model.
A coalescing filter upstream to keep compressor oil out of the desiccant, and a particulate filter downstream to catch desiccant fines. Oil contamination destroys desiccant media and is the most common cause of premature failure in these systems.
Desiccant replacement on schedule, heater and control service, valve maintenance, and filter changes. Monitor the dew point output — a gradual rise is the normal early warning that the desiccant is approaching end of life.
Equipment at this scale ships by freight and generally requires rigging to position, with mechanical and electrical connections made by qualified trades. Confirm site access, door and ceiling clearances, and utility availability before scheduling delivery, since a unit that cannot reach its installation position becomes an expensive problem on the dock.