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Pottorff > Air Control and Backdraft Dampers > Air Control Dampers > Industrial > CD-93

Model CD-93

Industrial Control Damper
Airfoil Blade

CD-93 industrial control damper employs heavy duty airfoil blades, a rugged flange frame, and options for ultra-low leakage in high temperature air and high pressure applications that make it ideal for high performance air intake and discharge applications where ultra-low leakage is critical.

Standard Construction

Frame: 8" x 2" x 12 ga. (203 x 51 x 2.8) galvanized steel channel. 

Blades: 16 ga. (1.5) galvanized steel airfoil. Parallel.

Axles: 3/4" (19) diameter plated steel.

Linkage: 3/16" x 3/4" (5 x 19) plated steel tie bars and  3/8" (10) stainless steel pins concealed in frame.

Bearings: Stainless steel sleeve-type, pivot in bushing, press fit into frame.

Control Shaft: 3/4" x 10" (19 x 254) round drive axle with shaft support bracket and bearing mounted to damper frame with factory mounted/welded manual locking quadrant.

Lifting Lugs: 7/8" (22) diameter, one on each jamb of frame.

Minimum Size:
8" x 10" (203 x 254)

Maximum Size:
Single Section: 60" x 96" (1524 x 2438)
Multiple Section: Unlimited


-25oF to 250oF (-32oC to 121oC) available up to 450oF (232oC) when required - consult with Pottorff

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