Compressed Air & Gas - Up to 300 PSIG - FDD Desiccant Dryer

- Product Overview
FDD Desiccant Dryer
Features:

• Compact size for point-of-use applications
• Pressures to 300 PSIG
• Robust Aluminum construction
• Drying efficiency down to -40°F pressure dewpoint
• Robust Aluminum construction
• Sightglass in bowl to monitor desiccant
• No electricity needed • Low pressure drop• No purge air lost as with other dryer types Parker Finite's FDD Desiccant Dryer Series are designed to remove water vapor and aerosols at point-of-use for intermittent flows up to 60 SCFM. These unique in-line air/gas dryer system are engineered for easy desicant changeouts, longer life and lower presure drops.

The Finite desiccant dryers are the simplest and most reliable method of insuring your sensitive pneumatic equipment is not exposed to damaging moisture. When air compressed, the temperature of the air is increased as is its capacity to hold moisture. As the hot moist air travels downstream through the pipelines, it cools, allowing the moisture to condense. Aftercoolers, draintraps and driplegs are effective for removing condensate, but for removing residual water vapor and aerosols, use the Finite FDD Desiccant dryer. These dryers are offered in port sizes from 1/4" - 1" NPT and flows ranging from 15 -60 SCFM.

Desiccant Types available; (Desiccant sold separately)

• Silica Gel -(FSGM100-1 = 5 lb can) 100 % indicating silica gel provides maximum moisture adsorption and dewpoints down to -40°F.

• Molecular Sieve -(FMS100-1 = 5 lb can) molecular sieves are crystaline, metallic aluminum silicates. The type 4A offers exceptional water vapor adsorption characteristics. Molecular sieves are more effective than silica gel at removing water vapor at elevated inlet temperatures. Dewpoints are attainable to -40°F.

How do they work?

As the wet compressed air flows through the inlet port and down through the bed of desiccant, the desiccant beads adsorb the water vapor and aerosols. The desiccant beads are so effective in adsorption, the humidity can be reduced to a -40°F pressure dewpoint. Unless your compressed air is exposed to a temperature below the dewpoint, there will be no further condensation forming in your lines.

After the moisture has been removed, the dry air passes through a sintered bronze element, up the center tube, and out the outlet port. As long as the desiccant is replaced regularly, your equipment will receive ultra dry, moisture-free air.

Pre and after filters are recommended for optimal performance. Always place a moisture separator and/or pre-coalescer filter upstream to remove bulk liquids including oils. Desiccant coated with oil will not adsorb moisture. Always place a 3 micron particulate filter downstream to prevent any desiccant dust from getting into critical applications.