Model CD-52
Control Damper
Aluminum Airfoil Blade
CD-52 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.
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. Opposed.
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. View Actuators.
Minimum Size: 6" x 10" (152 x 254)
Maximum Size:
Single Section: 60" x 72" (1524 x 1829)
Multiple Sections: Unlimited
Ratings
Leakage:
Leakage Class 1A - 3 cfm/ft² @ 1 in. wg. (0.015 m³/s/ m² @ 0.25 kPa)
Leakage Class 1 - 8 cfm/ft² @ 4 in. wg. (0.041 m³/s/ m² @ 1.0 kPa)
Leakage Class 1 - 9.8 cfm/ft² @ 6 in. wg. (0.049 m³/s/ m² @ 1.5 kPa)
Temperature: -25oF to 180oF (-32oC to 83oC)
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