Privacy Policy

Effective Date: August 29, 2025

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blue background, a set of control and backdraft dampers standing out

Pottorff > Air Control Dampers > Air Control Dampers > Commercial > CD-57

Air Control Dampers

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DOCUMENT CART

Model CD-57

Control Damper
Aluminum Airfoil Blade

CD-57 control damper employs fully symmetrical aluminum airfoil blades and a rugged aluminum hat channel frame to provide extremely low leakage and exceptional air performance in medium to high pressure and velocity applications.

Standard Construction

Frame: 5" x 1" (127 x 25) aluminum hat channel 0.125" (3) thick. Low profile head and sill are used on sizes less than 13" (330) high.

Blades: 6063-T5 0.070" (1.8) thick heavy duty, dual wall extruded aluminum airfoil. Parallel action.

Axles: 1/2" (13) diameter plated steel hex.

Linkage: Concealed in frame.

Bearings: Synthetic.

Seals: TPV blade edge seals and flexible metal jamb seals.

Control Shaft: 1/2" x 6" (13 x 152) round drive axle with outboard shaft support bracket and bearing supplied on all single section dampers for field installation. Factory installed 3/4" (19) diameter jackshaft on all multiple section dampers.

Minimum Size:
6" x 5" (152 x 127)

Maximum Size:
Single Section: 60" x 74" (1524 x 1880)
Multiple Sections: Unlimited