Finite FMD Series
Membrane Air/Gas Dryers

Finite®'s membrane dryers are available in 10 models which can supply clean, dry compressed air with dewpoints as low as -40°F (@10 SCFM) and +35° F (@40 SCFM). These membrane dryers are engineered for easy installation, minimal maintenance, and long term reliability.

Finite, the world leader in coalescing media development, has combined its proven coalescing filtration with a modern alternative to pressure swing and refrigerant dryer technologies.

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Toll Free at 800-761-4298

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Model(s): FMD35-006, FMD35-015, FMD35-060, FMD35-100, FMD35-400, FMD40-001, FMD40-002, FMD40-020, FMD40-050, FMD40-100
Click Here for flow capacity information for each model to determine which model is required

Finite's FMD Membrane Dryer Series is designed to remove water vapor and aersols at point-of-use for intermittent flows up to 40 SCFM with a +35°F dewpoint and 10 SCFM with a -40°F dewpoint.

The water vapor in the compressed air is removed by the principle of selective permeation through a membrane. The membrane module consists of bundles of hollow membrane fibers, each permeable to water vapor. As the compressed air passes through the center of these fibers, water vapor permeates through the walls of the fiber. A small portion of the dry air (purge flow) is redirected along the outside of each hollow fiber, carrying away the moisture-laden air which is then Exhausted to room atmosphere. The remainder of the dry air is piped to the application.

NOTE: In all cases a Grade 10 prefilter and a Grade 6 coalescer are installed upstream of the dryer module for 99.9985% removal of oil aerosols and mists.

Finite FMD Membrane Dryer Series Benefits and Features
• Designed for point-of-use applications
• Pressures to 150 PSIG
• No moving parts
• Drying efficiency down to -40°F pressure dewpoint
• Quiet, Continuous operation
• Low pressure drop
• Hollow fiber technology
• Nothing towear out
• Can be installed anywhere
• Lightweight
• No waiting for media changeouts
• Differential pressure indicator indicates when filter elements should be changed
• No electricity, no U.L. approval required, no refrigerants, and low dewpoints
• Only water vapor molecules are allowed to pass through the hollow fiber walls
• Less downtime
• Perfect for poin-of-use applications
• Ease of installation
• Dryer protection insurance
• Low operating cost, OEM cost savings, Environmentally friendly, prevents freeezing • Dryers can be used in medical, dental and breathing air applications

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.

For more information or a detailed discussion about your specific requirements please contact us at 727-847-4900 or Toll Free at 800-761-4298.

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BRAND Parker Finite

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Model Width in. (cm) Height in. (cm) Weight lbs. (kg)
FMD35-006 5.5" (14.00 cm) 14.5" (36.83 cm) 0.7 lbs. (.38 kg)
FMD35-015 6.5" (16.51 cm) 15" (38.10 cm) 1.9 lbs. (.86 kg)
FMD35-060 10" (25.4 cm) 22" (55.88 cm) 5.2 lbs. (2.36 kg)
FMD35-100 11.5" (29.21 cm) 22" (55.88 cm) 7.1 lbs. (3.22 kg)
FMD35-400 14" (35.56 cm) 38" (96.52 cm) 18.9 lbs. (8.57 kg)
FMD40-001 5.5" (14.00 cm) 14.5" (36.83 cm) 0.7 lbs. (.38 kg)
FMD40-002 6.5" (16.51 cm) 15" (38.10 cm) 1.9 lbs. (.86 kg)
FMD40-020 10" (25.4 cm) 22" (55.88 cm) 5.2 lbs. (2.36 kg)
FMD40-050 14" (35.56 cm) 26" (66.04 cm) 13.3 lbs. (3.22 kg)
FMD40-100 14" (35.56 cm) 38" (96.52 cm) 18.9 lbs. (8.57 kg)

Also Available from mdi: Parker Transair Aluminum Pipe and Fittings for Compressed Air

Transair aluminum pipe is the ideal system for compressed air, vacuum, and inert gas applications. It offers significant savings on installation, maintenance and operating costs when compared to traditional compressed air piping systems. Its removable and interchangeable components allow users to easily modify production layouts or execute process changes within minutes. It's the only product with true push-to-connect fittings, eliminating the need to thread, solder or glue pipe. Its unique sealing technology guarantees Transair to be leak-free.

Also Available from mdi: Parker Air Dryers for Compressed Air

Parker Domnick Hunter was the original innovator of compressed air treatment, developing the modern technology which is still the benchmark today. Parker Air Dryer products and systems deliver a unique combination of innovation and excellence in the most demanding applications, helping engineers to maximise the productivity and profitability of their manufacturing and process operations and with a focus on delivering real and lasting value to every customer. is your complete source for Parker Domnick Hunter Compressed Air Dryers, Gas Generators, Process Water Chillers, and Condensate Drains.