Industrial Round Backdraft Damper

Model:	580BD
Minimum Diameter:	10″
Maximum Diameter:	48″
Frame Depth:	10″ Deep
Frame Type:	Channel
Frame Material:	10 ga. Galvanized Steel
Blade Type:	Single Thickness with Reinforcing Gussets Welded to Blade
Blade Material:	12 ga. or 10 ga. Galvanized Steel
Blade Action:	Single Blade
Shafts:	Plated Steel Stub Continuous Length Welded to Blade
Bearings:	Sintered Stainless Steel Flanged Sleeve Press Fit into Frame
Stops:	Angle to Prevent Over Rotation of Blade
Operator:	6″ Extended Shaft
Finish:	Mill
Maximum Temperature:	200°F
Max Static Pressure:	8″ in w.g.

*Dampers smaller than minimum frame size require transitions.

Description

FRAME: Fabricated steel channel.
BLADE: Single thickness with reinforcing gussets welded to blade parallel to air flow as required.
SHAFT: Plated steel continuous length welded to blade.
BEARINGS: Sintered stainless steel flanged sleeve, pressed into the frame.
STOP: Angle stops to prevent over-rotation of blade.
OPERATOR: Extended shaft 6” long beyond frame flanges with counterbalance to assist or resist airflow.
FINISH: Mill / Galvanized / Zinc rich touch up.
TEMP. LIMIT: 200°F Consult the factory for temperature limits over 200°F