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Pottorff > Air Control Dampers > Air Control Dampers > Commercial > CD-51

Model CD-51

Control Damper
Aluminum Airfoil Blade

CD-51 control damper employs aluminum airfoil blades and a rugged hat channel frame to provide extremely low leakage and exceptional air control in medium to high pressure and velocity applications.

CD-51 Aluminum Airfoil Blade

Standard Construction

Frame: 5" x 1" (127 x 25) galvanized steel hat channel with interlocking corner gusset. Equivalent to 13 ga. (2.4) channel frame. Low profile head and sill are used on sizes less than 13" (330) high.

Blades: 6" (152) heavy gauge, dual wall extruded aluminum - airfoil. Parallel.

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

Linkage: Concealed in frame.

Bearings: Synthetic.

Seals: PVC 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 72" (1524 x 1829)
Multiple Sections: Unlimited


7.0 cfm/ft2 @ 10.0 in. wg. (0.04 m3/s/m2 @ 2.50 kPa)
5.0 cfm/ft2 @ 4.0 in. wg. (0.03 m3/s/m2 @ 1.00 kPa)
3.0 cfm/ft2 @ 1.0 in. wg. (0.02 m3/s/m2 @ 0.25 kPa)

Temperature: -25oF to 180oF (-32oC to 83oC)

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