Control Damper - Narrowline Aluminum Airfoil Parallel Blade - CD-53

Standard Construction

Frame: 4" x 1" x 0.081" minimum (102 x 25 x 2.1) extruded aluminum channel.

Blades: 4" (102) 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.

Minimum Size:
One Blade: 6" x 6" (152 x 152).
Two Blades: 6" x 9" (152 x 229)

Maximum Size:
Single Section: 60" x 72" (1524 x 1829)
Multiple Sections: Unlimited

Ratings

Leakage: 7.0 cfm/ft² @ 10.0 in. wg. (0.04 m³/s/m² @ 2.50 kPa)

6.0 cfm/ft² @ 7.0 in. wg. (0.03 m³/s/m² @ 1.70 kPa)

4.0 cfm/ft² @ 4.0 in. wg. (0.02 m³/s/m² @ 0.90 kPa)

Temperature: -10^oF to 150^oF (-23^oC to 66^oC)