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Compressed Air Filters

With over 30 years of compressed air purification experience behind us, Donaldson Ultrafilter has developed an extensive line of air filtration products with a range of efficiencies and optional features to cost-effectively meet any need. Our prefilters and afterfilters can be custom-configured to suit the requirements of your specific application.


AG Standard/Superplus (12-1,728 scfm)

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AG Standard and AG Superplus filter housings are designed with all of the features required to make these the most efficient and cost effective filters for your compressed air system. Their three-part aluminum housing design allows for easy disassembly and element change-out. Low pressure drop is achieved through optimal flow-path design. The tapered bowl and non-turbulent lower filter zone assure that no condensate gets re-entrained in the air stream. AG Superplus housings are equipped with our programmable Economizer differential pressure gauge, which notifies maintenance personnel of the optimal point at which to change the filter element. For coalescing prefilters, AG Superplus housing include the Ultramat zero-loss drain valve which assures that no compressed air is lost when liquid condensate is drained. All AG housings and elements are available in silicon-free configurations.
AG Standard
AG Superplus
AG Standard silicone free
AG Superplus silicone free
Brochure


®Ultrapoly PE Particulate Elements

®Ultrapoly PE Particulate ElementsUltrapoly PE particulate filter elements are made with aluminum end-caps, double o-ring seals and sintered polyethylene media for effective filtration down to 5 μm. PE elements offer the additional advantage of being fully regenerable.
PE Particulate Elements


®Ultrac AK Activated Carbon Adsorption Elements

®Ultrac AK Activated Carbon Adsorption ElementsThe Ultrac AK adsorption filter element utilizes a two-stage filtration process for absolute retention of oil vapor and other hydrocarbons. This patented two-stage design allows for a large surface area resulting in low pressure drop, long element life and no carry-over of carbon particles in the process air.
Activated Carbon Element


HD High Pressure Filters

HD High Pressure FiltersHD high pressure filter housings are designed for compressed air and gas applications up to 6,000 psig. Each housing can accommodate any of our standard range of filter elements for your specific need. Flow capacities from 54 scfm at 400 psig to 5,184 scfm at 6,000 psig are available.
HD High Pressure Filters


Ultrasorp AKC Activated Carbon Adsorber (3-5,000 scfm)

Ultrasorp AKC Activated Carbon Adsorber (3-5,000 scfm)Ultrasorp AKC activated carbon adsorbers offer high retention of oil vapor and hydrocarbons with low pressure drop across the system. The large activated carbon bed allows for residual oil content of less than 0.003 ppm and a bed life of 10,000 hours. AKC adsorbers include a built-in residual oil indicator.


 SG Standard/Superplus (648-23,040 scfm)

SG Standard/Superplus (648-23,040 scfm)SG Standard and SG Superplus carbon steel filter housings are designed to ASME code with ANSI flange connections. In the Standard configuration, these housings include our Econometer differential pressure gauge and external float drain valve for coalescing applications. Superplus versions include our programmable Economizer differential pressure gauge which notifies maintenance personnel of the optimal point at which to change the filter element(s). Superplus models also include our Ultramat zero-loss condensate drain valve which assures that no compressed air is lost when liquid condensate is drained. All SG housings and elements are available in silicon-free configurations.
SG Standard
SG Superplus
SG Standard silicone free
SG Superplus silicone free


®Ultradepth FF, MF & SMF Coalescing/Particulate Elements

®Ultradepth FF, MF & SMF Coalescing/Particulate ElementsThe unique design of Ultradepth FF, MF and SMF filter elements creates a two-stage filtration process within one element. The retention rate of 0.01 μm particles in our SMF element is a remarkable 99.99999%. This is made possible by the use of our patented Ultrair® binder-free borosilicate glass fiber media. This media also allows for very low pressure drop, which means that you get the highest efficiency at the lowest energy cost. Ultrair® HTNX elements are available for applications up to 180º F.
FF, MF, SMF Particulate Elements


®Ultraporex SB High Temperature Elements

®Ultraporex SB High Temperature ElementsFor high temperature applications up to 248o F, Ultraporex SB filter elements are made with sintered bronze media, aluminum end-caps and double o-ring seals. SB elements are available with three retention ratings: 5, 25 or 50 μm.
SB High Temperature Elements


®Ultradri AG-Z and SG-Z Cyclone Separators (70-8,600 scfm)

®Ultradri AG-Z and SG-Z Cyclone Separators (70-8,600 scfm)Ultradri AG-Z (aluminum) and SG-Z (carbon steel) separators are designed to remove liquid condensate from compressed air and gas. Integral swirl vanes allow for efficient liquid removal with low pressure drop. SG-Z housings incorporate an additional baffle plate to prevent carryover of aerosols. Standard configurations are equipped with float drains while Superplus versions are equipped with Ultramat zero-loss drain valves.
AG-Z
SG-Z

®Ultraporex SB High Temperature Elements