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Pottorff > Air Control Dampers > Air Control Dampers > Industrial > CD-85

Model CD-85

Industrial Control Damper
Triple-V Blade

CD-85 control dampers emply a rugged channel frame and triple-V blades for automatic air control and manual balancing in medium to high pressure and velocity applications.

CD-85 Triple-V Blade

Standard Construction

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

Blades: 7-3/4" x 12 ga. (197 x 2.8) galvanized steel - triple-V. Parallel.

Axles: 1" (25) diameter plated steel hex.

Linkage: Concealed in frame.

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

Control Shaft: 1" x 6" (25 x 152) round drive axle with shaft support bracket and bearing mounted to damper frame with factory mounted/welded manual locking quadrant.

Minimum Size:
One Blade: 6" x 8" (152 x 178)
Two Blades: 6" x 12" (152 x 305)

Maximum Size:
With Seals: 48" x 72" (1219 x 1829)
Without Seals: 60" x 96" (1524 x 2438)    

Ratings

Leakage:
18.5 cfm/ft2 @ 20.0 in. wg. (0.09 m3/s/m2 @ 5.0 kPa) with low leakage seals
16.0 cfm/ft2 @ 15.0 in. wg. (0.08 m3/s/m2 @ 3.8 kPa) with low leakage seals
11.0 cfm/ft2 @ 7.0 in. wg. (0.06 m3/s/m2 @ 1.8 kPa) with low leakage seals

Temperature:
-65oF to 250oF (-54oC to 121oC) with no seals
-40oF to 250oF (-40oC to 121oC) with EPDM seals

 

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