Donaldson manufactures a complete line of compressed air refrigeration, desiccant and membrane dryers to meet your specific air quality requirements and system solutions. The modularly designed processing ranges offer individual customer solutions, and therefore guarantee the highest efficiency.  | Buran™ Compact Refrigeration Compressed Air Dryers
Buran Compact refrigerated compressed air dryers offer reliable performance and consistent dew point in a small package. Compact dryers include hardware for wall-mounting on the rear side. All Buran dryers utilise environmentally friendly R134a refrigerant. The Buran Compact is suitable for volume flows of 10 to 80 m³/h. |  | Buran™ Cycling Refrigeration Compressed Air Dryers with Ultrapulse™ ControlThe unique mechanical design and control logic of Buran™ cycling refrigerated air dryers sets them apart from the competition in energy efficient operation. When operating at 100% capacity, Buran™ dryers with Ultrapulse™ technology are more efficient than traditional dryers utilising hot gas bypass valves, and considerably less than thermal mass style cycling dryers. Power savings become even more apparent when operating at less than 100% capacity, as is often the case in real-world operation. All standard Buran™ cycling dryers are equipped a load controlled solenoid valve. The Buran™ cycling dryers cover a volume flow range of 50 to 1.650 m³/h. |  | Boreas™ Refrigeration Compressed Air Dryers with Variopulse™The proprietary design of Boreas™ heat exchangers incorporates large flow channels for low pressure drop, which translates into low operating costs. A built-in cyclone separator with our Ultramat® zero-loss drain valve allows for the removal of condensed water without wasting any compressed air. The space-saving design brings cooling air in the front and out the top, allowing the unit to be placed next to a wall with other equipment on either side. All Boreas™ dryers utilise environmentally friendly R134a refrigerant and are available in either air- cooled or water-cooled configurations. Volume flows of 1.950 to 28.000 m³/h are covered by the Boreas™ series. |  | Bora™ HPD High Inlet Pressure Dryers
Bora™ HPD dryers can accept compressed air at inlet pessures up to 45 bar in ambient temperatures up to 50ºC. The maximum inlet temperature is 60°C. They utilize a two-stage stainless steel plate style heat exchanger for optimal heat transfer in the air-to-air and air-refrigerant circuits. Power consumption is reduced as less energy is required than conventional heat exchanger designs. Volume flows of 40 to 6.000 m³/h are covered by the Bora™ series. |  | Brisa™ SE High Efficiency Dryers
Brisa™ SE heat exchangers for compressed air have been optimised for extremely low pressure differentials. The Brisa™ SE dryers are suitable for volume flows of 10.500 to 50.000 m³/h. All Brisa™ SE dryers have up to a four-stage capacity control system for the refrigerant compressor and are serially equipped with a microprocessor controlled monitoring system. The overflow operation of the refrigerant vaporiser guarantees for a very good standard characteristic. |  | Ultrapac® 2000 Superplus (mini & midi) /Standard Heatless Regenerated Adsorption Dryers
Ultrapac® 2000 heatless desiccant dryers (mini & midi) provide clean and dry air at pressure dew points of -40º C and -70º C. Their turnkey modular design includes a preinstalled coalescing pre-filter and particulate after-filter. The desiccant is contained in easy-to-replace cartridges. The microprocessor controller alerts the operator of the optimal time to replace filter elements, keeping maintenance and operating costs at a minimum. Information regarding the operating status, fault indications and maintenance intervals can be seen on an easy-to-read text display. A capacity control adjusts the adsorption cycles to the actual water inlet load therefore saving regeneration and at the same time reducing operating costs. An Economizer provides on-line information regarding the optimum exchange point for filter elements. |  | Ultrapac® HED / ALD / MSD Heatless Adsorption Dryers
Ultrapac® Classic HED/ALD/MSD heatless desiccant compressed air dryers benefit from decades of design and fabrication experience by Donaldson. Our dryers are designed to consistently provide quality air with high energy efficiency in a flow range from 5 to 8750 m³/h at 7 bar g. Operation is fully automatic with a guaranteed outlet dew point at one of three pre-selected settings: HED, –20°C pdp; ALD, -40°C pdp; MSD, -70°C pdp. Each dryer in the 5-1000 m³/h flow range is enclosed in a protective cabinet with easy-to-remove panels. All Ultrapac® Classic dryers are supplied with preinstalled pre-filters and after-filters. The coalescing pre-filter is equipped with the Ultramat® zero-loss condensate drain. The compact design of Ultrapac® dryers takes up a minimum of floor space. | | Oilfreepac® 2000 (mini & midi) & Oilfreepac® OFP Heatless Air Dryers
In addition to having all of the attributes of our Ultrapac® 2000 and Ultrapac® HED/ALD/MSD heatless dryers, Oilfreepac® 2000 (mini & midi) and Ultrapac® OFP dryers (sizes 0005-1000 to 1350-8750) include integral activated carbon filters for removing hydrocarbon and other vapours for critical applications for which the demand is oil-free and odour-free air. | | Ultrapure™ 2000 (mini & midi) & Ultrapure™ ALG Heatless Breathing-Air Dryers
Ultrapure™ breathing air systems are heatless desiccant dryers that provide purified air in excess of all relevant international standards and medical prescriptions. Purification is carried out over 7 stages of drying and filtration. | 
 | Membrane Compressed Air Dryers VarioDry™ /FRL
For maintenance units it also applies that the requirements for compressed air determine the components for the processing. As opposed to central processing where the compressed air is kept on the high quality level of the demanding area of application, the processing directly at the consumer only requires the components needed on site. Decentralised processing saves energy and costs especially when only a part of the generated compressed air needs to fulfil high requirements.
The compact FRL units can processes volume flows of 2 to 150 m³/h. |  | Ultrapure™ ALG20 Breathing-Air Systems
The portable ALG20 breathing air unit is used when the breathing air is contaminated by the working process e.g. during sandblasting. A two-phase respectively three-phase filter stage provides the purification solution. The unit includes a microprocessor-controlled differential gauge and Economizer for optimum filter exchange indication. The standard units include a sub-micro and activated carbon filter. With a flow rate of 60 m³/h, four persons can be provided with breathing air. |  | Ultrasorp™ AKC Activated Carbon Adsorption Dryers
The AKC is an activated carbon absorber for the removal of oil vapours and hydrocarbons. It has a residual oil indicator with an accuracy of smaller than 0.01 ppm. The AKC models cover volume flows of 5 to 8.750 m³/h and have been built and tested for temperatures up to 50°C. The installation of a sub-micro filter on the inlet side of the AKC prevents oil carry-over to the activated carbon. |  | Ultradryer™ HRE, HRG and HRS Heat Regenerated Adsorption Dryers (Brochure)
The three heat regenerated adsorption dryer ranges provide for a multitude of individual customer solutions. Analogue measuring and control units provide maximum operational safety at optimal energy consumption. A wide variety of standard options for e.g. the additional energy saving control Ultraconomy rounds off the offering. The standard rage for dew points up to –40°C covers units from 375 m³/h to 13.600 m³/h. Larger capacities are available on request. |  | Ultradryer™ HRC Heat Regenerated Adsorption Dryers
The HRC adsorption dryer range uses the absorbed moisture of heat caused by the compression process for desorption. The units therefore operate oil free, two-stage compressor without additional energy requirements. The total drying and regeneration cycle takes place under operating pressure. Heat exchange pressure of the desiccant and all other components therefore does not occur. This guarantees a long service life of components. Units with the sizes 600 to 60.000 m³/h have already been built. |
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 |  | | | | | | | On-road or off-road, in all kinds of operating environments, Donaldson air filtration technology protects engines, delivers longer filter life and gives you the confidence that comes with using the industry leader. For more product information, check out our Air Filtration data sheets.  | Donaldson Brand Replacement Filters
Original equipment on most heavy-duty vehicles, Donaldson air filters deliver long life and reliable engine protection.
Donaldson Endurance™ on-highway air filters will go twice the distance of any cellulose filter – Check out our guarantee! |  | Air Filtration Technology Solutions
Check out our new PowerCore™ Filtration Technology – flexible enough to use in small spaces with the same performance as a standard size filter. Our Ultra-Web® nanofiber technolgy delivers longer filter life and greater engine protection. |  | Donaldson Air Systems
Air systems with Donaldson RadialSeal® sealing technology are easy to replace and provide a leak-free seal even in adverse operating conditions such as extreme heat or cold. |  | Pre-Cleaners
Pre-cleaners will greatly extend the life of your air filter. The new Donaldson TopSpin Pre-cleaner ejects particles before they reach the air filter, resulting in longer filter life and lower restriction. It’s maintenance free and easy-to-install too! |  | Air System Accessories
While they don’t break very often, Donaldson stocks service indicators, rubber elbows, stack extensions, vacuator valves, mounting bands, and clamps to repair broken air systems.
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 | | | | | | | | Donaldson offers reliable, future orientated products for economic and environmental oriented draining and purification of condensate. Condensate purification saves disposal costs. According to your requirement you can choose from level-controlled drains, oil/water separators for stable and non-stable solutions or complete systems for condensate treatment. | Ultrasep™ UFS-SP N Oil/Water Separators(Brochure)
The Ultrasep™ Superplus N takes care of your oil/water separation and also fulfils the legal demands. A range of 7 sizes from 120 m³/h to 7.200 m³/h takes care of all your oil/water mixtures of air compressor condensate and fulfils your requirements for filtration solutions. |  | UFA-AC Ultraaqua™ Autoclean Oil/Water Emulsions Separator (Brochure)
Donaldson has developed the Ultraaqua™ for the processing of stable oil/water emulsions of compressed air condensate, and can guarantee a filtrate quality of better than 5 ppm. You benefit from special features such as a LC-display, ceramic membrane, Viton seals and frost-protection for the membranes by means of a sensor-controlled heater system.
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Donaldson applies extensive filtration technology and manufacturing expertise to deliver the optimal contamination control solution for your disk drive. A team of experienced engineers is standing by to custom design a particle and adsorbent filtration system for your application. Standard product lines are described below.
 | Adsorbent Breather Assembly (ABA)
The ABA is designed to provide protection from particles, hydrocarbons, acid gases and the effects of water vapor, such as condensation and corrosion. The filtration membrane removes particles from incoming air. The adsorbent element is specially formulated to control humidity, and to adsorb acid gases and hydrocarbons from internal and external sources. The integral diffusion channel reduces the amount of hydrocarbons, water vapor and acid gases entering the drive from the surrounding environment and extends the life of the adsorbent.
|  | Adsorbent Breather Filter (ABF)
The ABF is designed to provide protection from particles, hydrocarbons and acid gases. The high efficiency filtration membrane removes particles from incoming air and encapsulates the adsorbent elements. The adsorbent is specially formulated to control humidity and to adsorb acid gases and hydrocarbons from internal and external sources.
|  | Adsorbent Label Filter (ALF)
The ALF is designed to provide protection from hydrocarbons and acid gases in a thin label format. The high efficiency filtration membrane encapsulates the adsorbent element while remaining permeable to gaseous contamination. The adsorbent element is specially formulated to control humidity and to adsorb acid gases and hydrocarbons from internal and external sources.
|  | Adsorbent Pouch Filter (APF)
The APF is designed to provide protection from hydrocarbons, acid gases and the effects of water vapor such as condensation and corrosion. The high efficiency filtration membrane encapsulates the adsorbent element while remaining permeable to gaseous contamination and water vapor. The adsorbent element is specially formulated to control humidity and to adsorb acid gases and hydrocarbons from internal and external sources.
|  | Adsorbent Recirculation Filter (ARF)
The ARF is designed to provide protection from particles, hydrocarbons and acid gases. Its location directly in the airstream generated by the rotating disks allows superior chemical cleanup time. The electrostatic filtration media and protective scrim provide particle filtration and encapsulate the adsorbent element. The adsorbent element is specially formulated to adsorb acid gases and hydrocarbons.
|  | Standard Breather Filter (SBF)
The SBF is designed to provide maximum protection from external particle contamination while allowing rapid pressure equalization of the drive.
|  | Standard Recirculation Filter (SRF)
The SRF is designed to provide protection from particles. The high efficiency, low-pressure drop construction provides optimized particle clean-up performance. |
 | | | | | | | | Donaldson develops, manufactures, and markets a full line of industrial hydraulic filters for the protection of machinery and components in hundreds of applications -- in the factory and on heavy duty- equipment. When you need filter housings, filter heads, replacement cartridges, spin-on (e.g. Donaldson Duramax™) or hydraulic accessories, turn to Donaldson. We’re proud to offer a broad line of upgrade/replacement filter elements with a short delivery time.  | High Pressure Filters
Donaldson heavy-duty high-pressure filters sit behind pumps and other prime movers to protect critical hydraulic components such as cylinders, motors and valves. All contain our SYNTEQ® synthetic filter media, specially developed by Donaldson for high efficiency liquid filtration. Working pressures range from 2000 psi up to 6090 psi; static pressures from 4500 psi up to 12000 psi. |  | Medium Pressure Filters
DT-061 In-line hydraulic filter is the newest addition to Donaldson’s family of medium pressure filters. This filter assembly features Donaldson Triboguard™ 5-layer media in a variety of designs. Donaldson DURAMAX®, well-known as the highest rated spin-on style filters available, are most often used in return-line positions. As spin-ons, they are particularly well-suited for duplex circuits. Donaldson Synteq® and cellulose media available. DURAMAX working pressures range from 350 psi up to 1000 psi; static pressures from 800 psi up to 2000 psi. |  | Low Pressure Filters
Low pressure filters are the most commonly used type of filter in hydraulic circuits, used as return line filters in applications with typcial working pressures up to 150 psi and static pressure up to 300 psi. Donaldson offers flow/pressure combinations to fit most applications. Continuous filtrations of bulk fluids through dedicated off-line circuits or kidney loops helps keep fuel, oil and lubricants clean.
|  | Oil Flushing Unit
This unit is perfect for filtering oil tanks and differentials from equipment during the service interval. A variety of filter elements provide the flexibility to achieve the desired cleanliness level. Custom design loop carts are also available. Water removal elements can also be utilized in this cart. |  | Accessories
We now offer you an expanded line of accessories for hydraulic lines and reservoirs! Finish off your hydraulic circuit with filter service indicators, pressure gauges, test points assemblies, valves, flanges, reservoir level gauges, sight glasses, a variety of tank and filler breathers, caps, vents, plugs, strainers, diffusers, magnets and more. |  | Replacement Filters
Donaldson is proud to offer the broadest selection of hydraulic replacement cartridges and spin-ons on the planet. Choose from our many different filter media to find exactly the right filter to help you meet the cleanliness requirements for your hydraulic system. Need cross-reference? Donaldson has an extensive list! Click “Browse the Catalog” at right to access it.
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