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Dayton 20 inch exhaust fan galvanised steel frame five blades belt drive

Dayton

Dayton 3FKD8 20 in exhaust fan 1241 RPM

SKU CH-AHGP-A9V3B

Medium-duty 20-inch steel exhaust fan delivers 4,404–6,348 cfm at 861–1,241 rpm with up to 0.75 in wg static pressure

  • typeMedium Duty Belt Drive Less Drive Package
  • Moves up to 6,348 cfm for strong ventilation
  • Steel blades and frame resist wear in tough spots
  • Belt drive spans 861 to 1,241 rpm for flexible speed control
  • Fits 22 1/2 in cut-out for standard install
  • Handles up to 0.75 in wg static pressure

20 in belt-drive exhaust fan

This Dayton 3FKD8 exhaust fan uses a 20 in steel blade in a steel frame. It is built for medium-duty belt-drive installations where the motor and drive package are supplied separately. The unit suits commercial or industrial ventilation projects that need a durable steel propeller.

Airflow range 4404 to 6348 cfm

The fan delivers between 4,404 cfm and 6,348 cfm depending on the motor speed chosen. Static pressure reaches a maximum of 0.75 in wg at the top of the range. Installers must select a motor between 1/4 hp and 3/4 hp and between 861 and 1,241 RPM to stay within these limits.

22 1/2 in square cut-out required

The housing fits a 22 1/2 in by 22 1/2 in square opening, which also serves as the cut-out diameter. No guard is included, so the mounting surface must accommodate the exposed blade. Verify the opening size before ordering.

Highlights

  • Moves up to 6,348 cfm for strong ventilation
  • Steel blades and frame resist wear in tough spots
  • Belt drive spans 861 to 1,241 rpm for flexible speed control
  • Fits 22 1/2 in cut-out for standard install
  • Handles up to 0.75 in wg static pressure

Specifications

BrandDayton
typeMedium Duty Belt Drive Less Drive Package

Questions about this item

Which motor speed range fits my airflow needs?

The fan operates between 861 and 1241 RPM, delivering 4404 to 6348 cfm depending on the motor selected.

What does the 6348 cfm rating mean once installed?

At 1241 RPM the unit moves up to 6348 cubic feet of air per minute against a maximum static pressure of 0.75 in wg.

What cut-out size does the 20-inch blade require?

A square opening of 22 1/2 inches by 22 1/2 inches is needed for the 20-inch diameter blade assembly.

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