INTRODUCTION
An air flow amplifier uses a small amount of compressed
air to move a much larger air volume. Amplification ratios
may meet or exceed 20:1. For more details on airflow of a
specific unit, visit www.vortec.com, or contact your local
distributor or Vortec.
COMPRESSED AIR SUPPLY
The compressed air supply must be filtered to remove
water and dirt using a 5 micron or smaller filter. Failure
to use a filter may cause clogging of the compressed air
paths inside the Vortec product. Filter recommendations
are given in Table 1.
Filter elements must be changed on a regular basis.
Frequency of change is determined by the condition of
the compressed air supply. Filters should be installed in
the compressed air supply line as close as possible to
the Vortec product.
The appropriate size of the compressed air supply line
should be selected to ensure optimal performance of the
Vortec product. Please refer to Table 2 to determine what
supply line size is recommended for your application.
Contact Vortec at 1-800-441-7475 for further assistance.
OPERATION
In order to vary the volume of airflow from the air flow
amplifier, an appropriately sized pressure regulator
can be used to control the compressed air pressure,
(less pressure = less airflow). (Pressure regulator
recommendations are given in Table 1.)
The output airflow volume can also be adjusted by varying
the internal air gap. For models with shims (901A, 901BA,
901DA, 901HA, 902, 903, 904), this is accomplished
by adding or removing gap shims (see Table 1). In
adjustable model 909A, this can be accomplished by
rotating the outlet barrel (counter-clockwise will increase
airflow, clockwise will decrease airflow).
INSTALLATION AND MAINTENANCE
Air flow amplifiers can be installed by directly plumbing
to the appropriately-sized, hard piped, compressed air
source that does not exceed 150 psig (10.3 Bar), see
Table 2.
When using air flow amplifiers for ducting fumes or
smoke, the duct must be sized, and routed to prevent
back pressure totaling more than 2” of water column.
Back pressure in ducted airflow will substantially affect
performance.
It is critical to the performance of the air flow amplifier
that the internal air passages remain clean. If the air
flow amplifier’s performance suddenly drops, carefully
disassemble the unit and inspect for debris. If debris is
found, it may be necessary to change your filter element.
Clean the debris from the unit and reassemble. Use
caution during reassembly to ensure that the shim (where
applicable) remains centered and does not become
lodged in the air passage. For detailed instructions
on cleaning or reassembly, contact your authorized
distributor or Vortec.
TROUBLESHOOTING
Insufficient airflow may be caused by the following:
1. Undersized compressed air line size.
2. Compressed air pressure too low.
3. Partial or complete blockage of internal air path,
due to dirt. See Maintenance section for cleaning
instructions; and Compressed Air Supply section for
filter recommendations.
4. Insufficient compressed air volume.
If trouble persists, please contact Vortec at 1-800-441-
7475.
1. Do not operate air flow amplifiers at compressed
air pressures above 150 psig (10.3 Bar).
2. Do not operate airflow amplifiers at line
temperatures above 110
o
F (43
o
C).
3. Avoid direct contact with compressed air.
4. Do not direct compressed air at any person.
5. When using compressed air, wear safety glasses
with side shields.
GENERAL SAFETY CONSIDERATIONS
WARNING: COMPRESSED AIR COULD
CAUSE DEATH, BLINDNESS OR INJURY
EXPLODED VIEW - 902, 903, 904
(Drawings shown below are not to scale)
LIMITED WARRANTY
Vortec compressed air products manufactured by ITW
Air Management will be replaced or repaired if found to
be defective due to manufacture defect within ten years
from the date of invoice. Refer to our website www.vortec.
com for full warranty details and limitations. ITW Air
Management makes no specific warranty merchantability
or warrant of fitness to a particular purpose.
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