Manufacturer: American Warming and Ventilating

FO-421 10” Fan Outlet Damper
Heavy Duty Fan Outlet, Airfoil, Parallel or Opposed

Damper Depth10"

DescriptionHeavy Duty Fan Outlet, Airfoil, Parallel or Opposed

Max Face Velocity5000 FPM

Max Pressure25 in. wg

Max Temperature800 F

Min Size6" x 6"

Max Size36" x 72"

Frame Material12 Ga. Mild Steel

Blade Material16 Ga. Mild Steel, Airfoil Shape, 10" Max Width

Axles1/2" Dia. Steel, Full Length

BearingsOil Impregnated Bronze w/ Stainless Steel Thrustwashers

LinkageHeavy Duty Plated Steel Arms, Stainless Steel Pivots and Galvanized Steel Angle, External Type

StopsMild Steel

Finish(1) Coat of Primer

Actuator4" Extended Shaft Is Standard (upon request, see actuator options)

SealsNone Is Standard (upon request, see seal options)