Industrial Control Damper - Triple-V Parallel Blade - CD-85

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