MD 411

Manufacturer: American Warming and Ventilating

8" USCG Approved Fire Marine Damper

Damper Depth8"

DescriptionUSCG Approved Fire Damper, Single Thickness

Max Face Velocity3000 FPM

Max Pressure10 in. wg.

Max Temperature250 F

Min Size12" x 12"

Max Size30" x 60"

Frame Material14 Ga. Galvanized Steel

Blade Material16 Ga. Galvanized Steel, 6 1/2" Max Width

Axles1/2" Square Plated Steel, Stub

BearingsOil Impregnated Bronze

LinkagePlated Steel Arms, Stainless Steel Pivots and Plated Steel Angle, In Jamb Type

StopsGalvanized Steel


ActuatorFail Safe Actuator Required (Consult Factory For Your Specific Requirements)

SealsStainless Steel Compression at Jambs Is Standard (Silicone Blade Seals Are Optional)