FO-421
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)