Model AC-81R

Industrial Control Damper
Single Blade - Round

AC-81R control damper employs a rugged round channel frame and a single round blade for automatic air control and manual balancing in medium to high pressure and velocity applications.

Standard Construction

Frame: Steel channel.
Flange Type: Round
Blade Material: Steel.
Blade Stop: Full open and closed position pin stop.
Blade Style: Single round steel blade; reinforced where required.
Axles: Plated steel.
Bearings: Stainless steel sleeve bearing, press fit into frame.
Control Shaft: 6" (152) long round drive axle.
Finish:
Hi-Pro poly powder coat, gray, *MCOT of 250^oF (121^oC)
Hi-temp poly powder coat, gray, *MCOT of 400^oF (204^oC)
Minimum Size: 4" Ø (122 Ø)
Maximum Size: 60" Ø (1524 Ø)
Lifting Lugs: Four 1" (25) lifting lugs provided on dampers > 16 Ø (406 Ø)
* Maximum Continuous Operating Temperature

Ratings

Velocity: 
Up to 6000 fpm (30.5 m/s)

Temperature: -40^oF to 400^oF (-40^oC to 204^oC) 

Pressure:
Up to 10 in. wg. (1.5 kPa)