Standard construction
Frame: 8"x11/4"x16ga. galvanized steel channel
Flange: Corner 0.4" dia. x 8 EA for installation bolt holes.
Blades: 22"Ga. galvanized steel upto 36" length.
22"Ga. galvanized steel upto 48" length
Min blade dimension: 6"
Linkage: Concealed in frame or face linkage inside of air stream.
Bearings: sleeve bearing
Axles: 1/2" dia. galvanized steel.
MIN. Damper size: PB single blade-5" W x 4" H
MAX. Section size: 48" x 72"
MAX. damper size: 72" x 72"
Steel construction: welded constructions
Axles: bolted to blade and tag welded.
Finish: Galvanized steel zinc plated hardware.
Installation instruction
Air flow rate control between duct and duct bolt conection
Variations(at extra charge)
1. Special finish
2. Special material: alum., stainless steel, etc.
3. Special blade seals and axle shaft seals
4. Special thickness of blade or frame.
Standard construction :
Frame: 8"x11/4"x16ga. galvanized steel channel with comer braces.
Flange: Corner 0.4" dia. x 8 EA for installation bolt holes.
Blades: 6" width 16ga. galvanized steel. Approx 6" on center.
Linkage: Concealed in frame or face linkage inside of air stream.
Bearings: sleeve bearing
Axles: 1/2" dia. galvanized steel.
MIN. Damper size: PB single blade-5" W x 4" H, OB-8" W x 14" H
MAX. Section size: 48" x 72"
MAX. damper size: unlimited.
Hand quadrant: for manual operation
Steel construction: welded constructions
Axles: bolted to blade and tag welded.
Finish: Galvanized steel zinc plated hardware.
Installation instruction
Air flow rate control between Duct and Duct bolt conection
Variations(at extra charge)
1. Special finish
2. Special material: alum., stainless steel, etc.
3. Special blade seals and axle shaft seals
4. Special thickness of blade or frame.
Standard construction
Frame: 20ga. galvanized steel.
Blade: Single blade 20ga. galvanized steel
Axle: 3/8" dia. galvanized steel bolted to blade
Max. section size: 18" dia.
Min. section size: 4" dia.
Hand Quadrant: for manual operation
Installation instruction
Air flow rate control
Between Duct and Duct bolt connection
Variations
1. Special finishes
2. special materials
3. Special thickness of blade or frame
