Donaldson Company, Inc.
4
Description
The Downflo
®
II dust collector is a continuous-duty
collector with cartridge-style filters. The
downward airflow design delivers high filtration
efficiency while using less energy. Continuous-duty
means no downtime. The filters are pulse-cleaned
in sequence, one at a time, without turning the unit
off.
Designed to increase the versatility of the unit,
standard options include abrasion-resistant inlets,
exhaust dampers, and plenum silencers.
Purpose and Intended Use
Downflo II collectors are widely used on nuisance
dust where the load to the collector is less than two
grains per square foot. Some typical applications
include abrasive blasting, grinding,
pharmaceuticals, powder paint applications, sand
handling, and welding. Choose the correct filter
cartridge for the application and type of dust
collected.
For fibrous dust, use a cartridge with an open-
pleat design, such as Fibra-Web
®
.
Operations involving high temperature and
humidity require special attention.
Temperature, moisture content, and chemistry
issues may exist, and custom design
modifications to the collector may be required.
Hygroscopic dust such as fertilizer, salt, and
sugar should be handled under a controlled, low
relative humidity environment. In addition, use
a cartridge with a synthetic substrate, such as
Fibra-Web.
For flammable or explosive dust, use cartridges
with metal end caps for more effective
grounding.
Applications with high hydrocarbon or oil
content should be avoided as these
contaminants will load and plug the cartridge
to the point that it cannot be sufficiently
cleaned.
Caution!
Misuse or modification of this
equipment may result in personal
injury.
Do not misuse or modify.
Caution!
Combustible materials such as
buffing lint, paper, wood, aluminum
or steel dust, weld fume, and
flammable solvents represent fire or
explosion hazards.
Use special care when selecting and
operating all collection equipment
when combustible materials are
present to protect workers and
property from damage due to fire
and/or explosion.
Consult and comply with National and Local
Codes relating to fire or explosion, and all
other appropriate codes when determining the
location and operation of dust collection
equipment.
Donaldson equipment is not equipped with fire
extinguishing or explosion protection systems.
