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DOWNFLO OVALDUST COLLECTORS

DOWNFLO OVAL DUST COLLECTORSA FAMILY OF OVER-ACHIEVERSThe high performance Downflo Oval (DFO) family of over-achieving dust collectors provides up to 25 percentmore filtration capacity than other same-sized cartridge collectors. Powered by proprietary Ultra-Web nanofiberfiltration technology, DFO delivers cleaner air, up to two times longer filter life, and greater cost savings.The DFO advantage is found in the collector’s proprietary design and components. The combination of a newcabinet design that greatly lowers cabinet velocities, proprietary Extra-Life cleaning technology, and provenUltra-Web nanofiber filters allows more airflow through the collector without increasing the size of the footprintor damaging the filters.A smaller collector helps lower the initial purchase price, reduces filter replacement costs and opens up valuablemanufacturing floor space.DFO offers: Lower initial cost per cubic foot of air per minute Higher efficiency—cleaner air Lower pressure drop— greater energy savings Fewer filter changeouts Reduced filter disposal cost Easy system setup Less maintenance 10-year warranty25%MORE CAPACITYDFO 3-181Donaldson Torit

DOWNFLO OVAL DUST COLLECTORSOUTPERFORMS ALL OTHER COLLECTORSDFO collectors offer some strong benefits that distinguish them from all other collectors available in themarket today. EASY TO USE POWERFULQuick-release handles provide easy cover removaland faster filter accessDFO collectors provide 25 percent more capacitythan same-sized dust collectors COMPACT COST EFFECTIVESmaller footprints for applications that requiremaximum cleaning efficiency in even smaller spacesThe proprietary ExtraLife Filter Cleaning Systemaverages up to 30 percent increase in pulse cleaningenergy for unmatched cleaning ability INNOVATIVEUnique oval-shaped Ultra-Web cartridge filtersprovide the longest filter life and highest filtrationefficiency—which lowers costDFO 2-4DFO 3-3donaldsontorit.com 800-365-13312

DOWNFLO OVAL DUST COLLECTORSSIZES & OPERATIONSDFO Models 1-1, 2-2 and 3-3 Incorporate several exclusive and unique features Remarkably quiet operation ompletely self-contained, “plug-and-play”Ctype units Exceptionally compact design ackaged with power pack, controls, silencer,Pdamper, dust container and more asily movable through standard aislesEand doorwaysNORMAL OPERATIONS FORMODELS 1-1, 2-2 and 3-3clean-airoutletdirty-air inletfiltercartridgefilteraccessdamperfanmotorDFO 1-13Donaldson Torit

DOWNFLO OVAL DUST COLLECTORSDFO Models 2-4 to 4-128 23 standard model sizes Exceptionally compact design Customized sizes available Significant energy savings Many options and accessoriesNORMAL OPERATIONS FORMODELS 2-4 TO ir inletstandardclean-airoutletfilter cartridgesSIMPLYTHE BESTCARTRIDGE COLLECTORS AVAILABLEdonaldsontorit.com 800-365-13314

DOWNFLO OVAL DUST COLLECTORSCARTRIDGE FILTER TECHNOLOGYHIGH PERFORMANCE FILTERSThe Downflo Oval filter design is another indication of Donaldson Torit’s commitment to technical researchand development. The distinguishing factor in our filters is Ultra-Web filtration technology. Ultra-Webnanofiber media uses a layer of fibers 0.2 to 0.3 microns in diameter to capture contaminants on the surfaceof the media less than one micron in size. The resulting dust cake is easily cleaned off during the automatedcollector cleaning cycles providing cleaner air longer, with a minimum MERV* 15 efficiency rating based onASHRAE 52.2 - 2007 test standards.10 micronNanofiber Media(600x)Nanofiber surface loading technology is availablein all Ultra-Web and Fibra-Web filter cartridges.10 micronCommodity Filter Media(600x)Conventional media has spaces of up to 60 µm between fibers,allowing dust to become deeply embedded.CARTRIDGE FILTERS FOR MANY APPLICATIONSThe Downflo WorkStation (DWS) in conjunction with Donaldson Torit’s unique oval-shaped filter cartridgesare an unbeatable system. Choose from our superior line of filters to complete the most powerful filtrationsolution available for your application.5Donaldson Torit

DOWNFLO OVAL DUST COLLECTORSMORE AIRFLOW, LESS FILTER MEDIAUNIQUE OVAL SHAPE CONTRIBUTES TO HIGHERAIRFLOW CAPACITYThe Downflo Oval filter design is a reflection of Donaldson Torit’s commitment to technical research anddevelopment. High performance oval-shaped filters handle up to 25 percent more airflow without increasingvelocities, which can cause filter abrasion. Sophisticated FLUENT *Airflow Modeling Software revealedthat oval-shaped cartridge filters have fewer areas of high velocity, resulting in a lower potential for mediaabrasion and increased filter life.DOWNFLO OVAL COLLECTOR9145 cfm (15,534 m3/h)STANDARD COLLECTOR7315 cfm (12,426 m3/h)AIRFLOW BREAKTHROUGHS LEAD TO HIGHERFILTRATION EFFICIENCYSophisticated computer modeling for fluid dynamics, structural mechanics and acoustics puts DFO models1-1, 2-2, and 3-3 in a technical class all their own. The illustration below (left) shows how FLUENT FlowModeling Software enhanced the uniform air velocity distribution through model DFO 3-3. ANSYS *Structure Analysis Software shown below (right) demonstrates lowest stress levels and deflections for modelDFO 3-3 under typical operating pressures.DFO 3-3 AIR VELOCITYDISTRIBUTIONDFO 3-3 STRESS ANDDEFLECTIONS MODEL* FLUENT is a registered trademark of Fluent, Inc.; ANSYS is a registered trademark of ANSYS, Inc.donaldsontorit.com 800-365-13316

DOWNFLO OVAL DUST COLLECTORSBETTER FILTRATION,PROLONGED FILTER LIFECONVEX SIDE WALLSTechnical discoveries improve filtration performance and prolonged filter life. A new cabinet design with convexside walls streamlines the airflow path and increases the cabinet’s cross-sectional area. The convex side wallsprovide more space between filters, lower cabinet velocities and reduce the potential for media abrasion.SHOWN: CROSS-SECTIONAL AREA OF COLLECTOR DIRTY AIR PLENUM.AIRFLOWFILTERDOWNFLO OVALCOLLECTORSTANDARDCOLLECTORCROSS-SECTIONAL AREASPULSE CLEANING TECHNOLOGYExtraLife Filter Cleaning System uses proprietary, computer-modeled pulse cleaning technology to easily“pulse off” dust from the surface of the filter, improving filtration efficiency and prolonging filter life. Thered lines in the illustration show the increased pressure at the front of the Downflo filter generated by theExtraLife system. The blue line shows the pulse signature of a standard cartridge collector.Pulse gradients produced by thestandard Downflo during pulsecleaning compared to gradientsproduced by a Downflo with theExtraLife Cleaning System (red).Compressed AirCleaning PulsesVenturiTubesheetCartridgeFiltersDOWNFLO PULSE PRESSURE GRADIENTS7Donaldson Torit

DOWNFLO OVAL DUST COLLECTORSFILTER CHANGES ANDDISCHARGE MAINTENANCEEASY MAINTENANCEWith the new design of the DFO’s quick-release access handles, filter removal and maintenance isextremely fast with one simple movement of the clamp.BAG-IN / BAG-OUTARRANGEMENTSImprove filter changeouts and hopper dischargemaintenance, help minimize worker exposure topotentially harmful dusts, and reduce exposure ofcontaminants to the atmosphere. orthole covers protect changeoutPbags and provide a clean appearance eavy-duty plastic bags hold filtersHand function as gloves during thechangeout procedure Filters are disposed of in a sealed bag ag-in/Bag-Out drum arrangementBis safely held in place through drumlatches and hose clampsdonaldsontorit.com 800-365-13318

DOWNFLO OVAL DUST COLLECTORSOPERATING ADVANTAGES& CONDITIONSDFO MODELS1-12-23-3Horsepower (HP)1.535**Sound Level dB(A)*686870**External Static Pressure (in of H2O/mm of H2O)***********Housing Construction (gauge)12121210 (collector)7 (tubesheet)-20/-508-20/-508-20/-508-20/-508Wind Load Rating (mph/kph)100 / 161Seismic Rating (zone)444460/4.160/4.160/4.12-4, 3-6: 60/4.12-8 and up: 90-100/6.2-6.9Housing Rating (in of H2O/mm of H2O)Compressed Air Required (psi/bar)2-4through* Sound measurements were taken in a hemianachoic chamber and under free field conditions and do not reflect the influences of actual operating environments.Standard sound pressure levels were taken at an operator position of 1.5 m high and 1 m from source.** Provided through Donaldson Torit fan program.*** See system performance curves on page 10.ADDRESSING SAFETY CONCEPTSDonaldson Torit manufactures or partners with experts toprovide solutions for critical processes where harmful particulatemust be controlled.9Donaldson Torit xplosion Relief PanelsE(with or without weather domes) Suppression Systems Reinforced Housing Construction4-128

DOWNFLO OVAL DUST COLLECTORSSYSTEM CURVES FOR DFOMODELS 1-1, 2-2, AND 3-3POWERFUL PERFORMANCEUnlike other technologies that require upgrades for more demanding applications, each DFO 1-1, 2-2 and 3-3footprint comes standard with a unique high performance power pack. The system performance graphs belowshow the fan performance with clean filters. The curve indicates available external static pressure to the unit.DFO 1-1 1.1kW 50Hz with 6" (152.4 mm) inlet duct (clean filter)External Static Pressure - in of H2O(1 in Staticof H2OPressure 25 mm ofO)H2OExternal- inH2of(1 in of H2O 25 mm of H2O)External Static Pressure - in of H2O 25 mm ofO)H2O(1 in Staticof H2OPressureExternal- inH2of(1 in of H2O 25 mm of H2O)DFO 1-1 1.5HP 60Hz with 6" (152.4 mm) inlet duct (clean filter)Airflow- cfm(200(200cfmcfm 340m3/h)Airflow- cfm 340m3/h)DFO 2-2 2.2kW 50Hz with 8" (203.2 mm) inlet duct (clean filters)External Static Pressure - in of H2O(1 in of H2O 25 mm of H2O)External Static Pressure - in of H2O(1 in of H2O 25 mm of H2O)External Static Pressure - in of H2O(1 in of H2O 25 mm of H2O)External Static Pressure - in of H2O(1 in of H2O 25 mm of H2O)DFO 2-2 3HP 60Hz with 8" (203.2 mm) inlet duct (clean filters)Airflow- cfm(200(200cfmcfm 340m3/h)Airflow- cfm 340m3/h)3Airflow- cfm-(200340 m340/h)m3/h)Airflowcfmcfm(200 cfmDFO 3-3 4.0kW 50Hz with 9" (228.6 mm) inlet duct (clean filters)External Static Pressure - in of H2OExternal(1 inStaticof H2OPressure 25 mm-ofinHof2O)H2O(1 in of H2O 25 mm of H2O)External Static Pressure - in of H2OExternal 25 mm-ofinHof2O)H2O(1 inStaticof H2OPressure(1 in of H2O 25 mm of H2O)DFO 3-3 5HP 60Hz with 9" (228.6 mm) inlet duct (clean filters)3Airflow- cfm-(200340 m340/h)m3/h)Airflowcfmcfm(200 cfmAirflow - cfm (200 cfm 340 m3/h)3Airflow - cfm (200 cfm 340 m /h)Airflow - cfm (200 cfm 340 m3/h)3Airflow - cfm (200 cfm 340 m /h)donaldsontorit.com 800-365-133110

DOWNFLO OVAL DUST COLLECTORSDIMENSIONS & SPECIFICATIONSBASE MODULES1-1, 2-2 & 3-3***18.9 in.(480.1 mm)1.0 in.(25.4 mm)27.1 in.27.1 in.(688.3 mm)(688.3 mm)Front ViewDFO 1-1Front ViewDFO 2-2Left Side ViewDFO 3-3* Top of inlets.BASE MODULES2-4 to 4-1282.5 in.(63.5mm)2.5 in.2.5 in.2.5 in.(63.5mm)2.5 in.CLCL(63.5 mm)CLCL20.0 in.(508.0mm)20.0 in.20.0 in.(508.0mm)20.0 in.(508.0 mm)152.9 in.152.9 in.(3883.7 mm)134.3 in.134.3 in.(DFO 2-4)(3411.2129.4mm)in.(3286.8 mm)(DFO 2-4) 129.4 in.115.7 in.(2938.8 mm)115.7 in.(DFO 2-4)(2938.8110.8mm)in.(2814.3 mm)(DFO 2-4) 110.8 in.CLCL(508.0 mm)CLCL20.0 in.(508.0 mm)CLCLCLCL(63.5 mm)(508.0mm)20.0 in.(63.5 mm)(63.5mm)2.5 in.(3411.2 mm)(3883.7 mm)(3286.8 mm)(2814.3 mm)Front ViewDFO 2-ModelsFront ViewDFO 3-ModelsFront ViewDFO 4-Models20.0 in.2.5 in.(63.5mm)2.5 in.(63.5 mm)CLCL2.5 in.(63.5mm)2.5 in.CLCL30.0 in.(762.0mm)30.0 in.CLCL(63.5 mm)CLCL(508.0mm)20.0 in.(508.0 mm)30.0 in.(762.0mm)30.0 in.(762.0 mm)(762.0 mm)134.3 in.134.3 in.(3411.2 mm)115.7 in.115.7 in.(3411.2 mm)20.5 in.(520.7mm)20.5 in.(2938.8 mm)(520.7 mm)(2938.8 mm)48.0 in.(1219.2mm)48.0 in.(1219.2 mm)Front View DFO 2-12(3-Wide Models)11Donaldson ToritFront View DFO 3-18(3-Wide Models)Right Side ViewAll Models