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Application
The F21 Air Intake Filter is recommended for use on turbines, engines, centrifugal fans,
blowers and compressors where controlled filtration is required. When used on the inlets
of compressors, engines and blowers, an appropriate silencer must be installed between
the air moving device and the filter.
Design
A rigid housing designed to accept standard 24˝ x 24˝ filter elements. Various types of
elements are available to provide filter efficiencies to meet the needs of engines,
blowers, or compressors. Filter housings are available to accept either a single filter
element or two filter elements in series. Internal design provides a safeguard to prevent
small size foreign objects from entering the air intake passageway when filters are
removed. Special designs available upon request.
Construction
Welded sheet and plate steel construction. Metal joints are sealed to prevent dirt and air
from bypassing the filter element. Surfaces are prime coated, followed with a final coat
of machinery enamel. Flanges are drilled to match 125 lb. American Standard Flanges.
Weatherhoods are included. Special finishes, or materials, are available at extra cost.
| Part No. |
|
Figure |
Total Filter Element (CFM) |
Number of 24"x24" Element Openings |
Outlet Nozzle Velocity (FPM) |
A |
Q |
C |
S |
Wt. |
| F21-81 |
|
1 |
2,500 |
1 |
7,198 |
8 |
24 |
29 |
347⁄8 |
215 |
| F21-101 |
|
1 |
2,500 |
1 |
4,565 |
10 |
24 |
29 |
347⁄8 |
220 |
| F21-121 |
|
1 |
2,500 |
1 |
3,183 |
12 |
24 |
29 |
347⁄8 |
230 |
| F21-122 |
|
2 |
5,000 |
2 |
6,365 |
12 |
24 |
29 |
65¾ |
330 |
| F21-142 |
|
2 |
5,000 |
2 |
4,940 |
14 |
24 |
29 |
65¾ |
340 |
| F21-162 |
|
2 |
5,000 |
2 |
3,755 |
16 |
24 |
29 |
65¾ |
350 |
| F21-184 |
|
3 |
10,000 |
4 |
5,900 |
18 |
48 |
29 |
65¾ |
530 |
| F21-204 |
|
3 |
10,000 |
4 |
4,760 |
20 |
48 |
29 |
65¾ |
545 |
| F21-244 |
|
3 |
10,000 |
4 |
3,280 |
24 |
48 |
29 |
65¾ |
570 |
| F21-246 |
|
4 |
15,000 |
6 |
4,920 |
24 |
48 |
29 |
75¾ |
640 |
| F21-306 |
|
4 |
15,000 |
6 |
3,135 |
30 |
48 |
29 |
75¾ |
675 |
| F21-308 |
|
5 |
20,000 |
8 |
4,180 |
30 |
48 |
29 |
75¾ |
765 |
| F21-368 |
|
5 |
20,000 |
8 |
2,920 |
36 |
48 |
29 |
75¾ |
855 |
|
