Downflo Oval, DFO 1-1 to 3-3
2
Downflo Oval collectors are widely used on nuisance
dust where the load to the collector is less than two
grains per cubic foot. Some typical point-of-use
applications include abrasive blasting, thermal cutting,
grinding, pharmaceutical blending and packaging,
powder paint applications, sand handling, and welding.
Each application is different and selecting the correct
filter for the application and type of dust collected
is important. Contact Donaldson Torit for selection
assistance.
• Ambient, extremely fine, and non-fibrous dust,
typically use Ultra Web® filter cartridges which offer
high efficiency and performance on fine particulate.
• Fibrous dusts often benefit from a cartridge with an
open-pleat design, such as Fibra-Web®.
• Operations involving high temperature and high
humidity may require special attention. Temperature,
moisture content, and chemistry issues may require
custom collector modifications.
• Hygroscopic dust such as fertilizer, salt, and sugar
should be handled under a controlled, low-humidity
environment.
• Flammable or explosive dust may require customized
collector design options.
• Applications with high hydrocarbon or high oil
content may require special treatment or filter media.
Description
The Downflo Oval is a dust collector with oval, cartridge-
style filters. The downward airflow design delivers high
filtration efficiency while using less energy. The filters
for DFO 1-1 are pulse-cleaned off-line while filters for
DFO 2-2 and DFO 3-3 can be pulse-cleaned on- or off-
line, depending on the type of cleaning control options
selected. All models are one-filter deep collectors; model
DFO 1-1 is a single filter collector, model DFO 2-2 is a two
filter high collector, and model DFO 3-3 is a three filter
high collector.
Options include various cleaning controls with and
without motor starter controls, HEPA afterfilter packs,
Bag-Out, and various dust container options.
Purpose and Intended Use
Misuse or modification may result
in severe personal injury and/or
property damage.
Do not misuse or modify.
