Exair High Temperature Air Amplifiers are rated to 700°F (374°C) and made to circulate air in hot environments including inside ovens, furnaces and large molds. Utilizing the Coanda effect, a basic principle of fluidics, Air Amplifiers become a simple, low cost way to circulate air, move smoke, fumes and light materials. Using a small amount of compressed air as their power source, High Temperature Air Amplifiers pull in large volumes of surrounding air to produce high volume, high velocity outlet flows through a fixed air gap. They are quiet and efficient while creating output flows up to 25 times their consumption rate.
Applications
- Vent welding smoke
- Cool hot parts
- Dry wet parts
- Clean machined parts
Advantages
Compared to Fans: | Compared to Venturies and Ejectors: |
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High Temperature Air Amplifier Performance
80 PSIG (5.5 BAR) | Air Consumption | Amplification | Air Volume at Outlet | Air Volume at 6" (152mm) | Sound Level | |||
Model # | SCFM | SLPM | RATIO | SCFM | SLPM | SCFM | SLPM | dBA |
121021 | 8.1 | 229 | 18 | 146 | 4,132 | 436 | 12,339 | 72 |
Tested with .003" (0.08mm) shim.
High Temperature Air Amplifier Dimensions
Model 121021 - High Temperature Air Amplifier
A | in | 0.84 |
mm | 21 | |
B | in | 0.94 |
mm | 24 | |
C | in | 1.50 |
mm | 38 | |
D | in | 2.40 |
mm | 61 | |
E | in | 3.03 |
mm | 77 | |
F | in | 0.27 |
mm | 7 | |
G | in | 0.21 |
mm | 5 | |
H | in | 0.75 |
mm | 19 | |
J | in | 1.22 |
mm | 31 | |
K | in | 2.88 |
mm | 73 | |
L | in | 0.59 |
mm | 15 | |
M | NPT | 1/4 |
High Temperature Air Amplifier Airflow Pattern
Model 121021 - High Temperature Air Amplifier
A | in | 2 |
mm | 51 | |
B | in | 2.9 |
mm | 74 | |
C | in | 4.7 |
mm | 119 | |
D | in | 6.5 |
mm | 165 |
How Air Amplifiers Work
Compressed air flows through the air inlet (1) into an annular chamber (2). It is then throttled through a small ring nozzle (3) at high velocity. This primary airstream adheres to the Coanda profile (4), which directs it toward the outlet. A low pressure area is created at the center (5), inducing a high volume flow of surrounding air into the primary airstream. The combined flow of primary and surrounding air exhausts from the Air Amplifier in a high volume, high velocity flow.
High Temperature Air Amplifier Standards and Certifications


EXAIR Air Amplifiers comply with OSHA's Safety Requirements, the EU General Product Safety Directive (2001/95/EC) and meet the noise limitation requirements of the EU Machinery Directive (2006/42/EC).All sound level measurements are taken at 3 feet away.

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