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3550 - Vertical Mount Backdraft Damper

Standard Features

  • Dampers are opened by air pressure differential and closed by gravity
  • 16 gauge channel frame
  • Galvanized blades are 26 gauge and vee stiffened for extra strength and stability
  • Out of airstream linkage
  • Single blades on dampers with a height of 10" or less
  • Blades run parallel to first dimension given
  • Square steel pivot pins in nylon bushings
  • Foam tape sealed blade edges to dampen noise
  • Adjustable counter balance arms mounted to center of blades. Adjustable weights can be positioned along arm for various opening pressures. (Available only on dampers with multiple blades.)
  • Minimum size 6"x6"
  • Maximum size 48"x48"
  • Fractional and exact sizes available
  • Galvanized Finish

Compare
Finishes
Options (must specify when ordering)
Submittals (Technical Data/Revit)
Cross Reference
  • Galvanized

Options

  • Double blades on dampers with a height of 8" or 10" (i.e. 3550-8x8 DB)
  • Outside mounting flange
  • Bronze bearings
  • Sleeves (contact factory for details)
  • Fractional and exact O.D. dimensions

Compare Similar Products - 
Comparing Products

Location
Adjustable Counter Balance
Mounting Direction
Frame Depth
Frame Depth
Standard Blade Direction
Blade Type
Fixed or Adjustable
Frame Material
Function
Standard Finish
Industry
Sidewall
Standard
Vertical
5"
5"
Parallel to 1st dimension
26 gauge galvanized steel
Adjustable
16 gauge steel
Intake or Exhaust
Galvanized
Damper-Louver
Ceiling
Option
Horizontal (air up)
5"
5"
Parallel to 1st dimension
26 gauge galvanized steel
Adjustable
16 gauge steel
Intake or Exhaust
Galvanized
Damper-Louver
Ceiling
Option
Horizontal (air down)
5"
5"
Parallel to 1st dimension
26 gauge galvanized steel
Adjustable
16 gauge steel
Intake or Exhaust
Galvanized
Damper-Louver
Ceiling or Sidewall
No
Vertical or Horizontal
Varies by size
Varies by size
N/A
26 gauge galvanized steel
Adjustable
16 gauge steel
Intake or Exhaust
Galvanized
Damper-Louver

SUBMITTALS

3550 Series Submittal

No performance data is available for this product



Cross Reference

Competitor 
Product Series 
Shoemaker Series Notes 
GREENHECKES-30Greenheck ES-30 is made of aluminum. Shoemaker 3550 is made of steel.
RUSKINS3GRuskin S3G has a 3" depth. Shoemaker 3550 has a 5" depth.