Standard Construction
Frame: 8" (203) flanged steel channel.
Blades: Steel reinforced butterfly style.
Blade Stops: Full open and full closed.
Axles: Solid plated steel.
Axle Seals: Double gland.
Damper Operator: Manual locking arm for dampers ≥ 16" Ø (406) Ø, manual hand wheel for larger diameters.
Bearings: Relubricatable ball bearing, outboard mounting.
Flange Type: Round.
Finish: Hi-Pro polyester, gray. (Two year warranty)
Minimum Size: 6" Ø (152) Ø
Maximum Size: 48" Ø (1219) Ø
Ratings
Leakage: Bubble-tight in accordance with AMCA-500D
Maximum Pressure: 30 in. wg. (7.5 kPa) - differential pressure
Maximum Velocity: 6,500 fpm (33 m/s)
Temperature:
Minimum: -40oF (-40oC)
Maximum: 250oF (121oC)