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F21 Air Intake Filters and Filter Silencers

F21 Series
Air Intake Filters and Filter Silencers

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 3478 215
F21-101   1 2,500 1 4,565 10 24 29 3478 220
F21-121   1 2,500 1 3,183 12 24 29 3478 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

 

 
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