larger than 48" x 48" can be calculated by group of
MODEL: OBS or PBS
Adds to Price List: Multipliers
Stainless Steel Call for Pricing
Aluminum Call for Pricing
Extra Blades
All damper sizes are 1/4" smaller both ways
Opposed or Parallel Sealed
Belimo Actuators in Stock for Immediate Shipment
MODEL: SBD Rectangular Single Blade Dampers
Quadrants
Per Sq. In. (length x width)
Specifications: 16 Ga. Galvanized Blade
1/2” Round Plated CRS Rod
MODEL: RBD Round Back Draft Damper
The Round Back Damper is undersized 1/4” to fit inside the pipe. Attached to the .025 aluminum butterfly style blades is a spring closure that seals the blades up tightly against neoprene gasket.
The damper frame is a 16ga welded galvanized construction that is attached to the frame with 1/4" round plated rod and bronze bushings. The stamped aluminum brackets and linkage keep the blades operating together and the felt blade stops provide for quiet operation.
Standard Construction:
List dampers duct size (WxH) width x height - all dampers will be 1/4" smaller both ways
Frame: 16ga galvanized Hat channel – welded construction
Frame dimensions: 2-7/8" Hat channel (11/16 x 5/8 x 1-1/2 x 5/8 x 11/16)
Blades: Formed .025 3003 aluminum (3-1/2" +/-)
Bushings: 1/4" bronze oilite
Rod: 1/4" round CRS plated
Seals: 1/16" x 1/2" felt strips on blades
Linkage: .032 3003 aluminum brackets/.063 linkage
Maximum Velocity: 1000 FPM
Maximum Size: 36"x36" – Larger sizes must be sectioned
Options:
Flange - (on in-take side or out-put side)
Counter balance
Spring load
MODEL: MVBD Medium-Velocity Backdraft Damper
Description:
The damper frame is a welded 16ga galvanized hat channel construction. operation and linkage is consistent to the parallel blade damper.
Standard Construction:
List dampers duct size (WxH) width x height - all dampers will be 1/4" smaller both ways
Frame: 16ga galvanized-hat channel-welded construction
Frame dimensions: 3-7/8" Hat channel (11/16 x 5/8 x 2-1/2 x 5/8 x 11/x16)
Maximum size: 36" x 48" - Larger sizes must be sectioned
Options:
Flange – (on in-take side or out-put side)
MODELS: (SLB) Standard Louver Box
(SLF) Standard Louver Flange ( with 1 1/2” flange )
Galvanized (Standard)16ga or Galvanneal/Paint Grip 16ga (SLB) 4” Standard Louver Box or (SLF) 4” Standard Louver Flange (1-1/2” Flange)
Aluminum 3003-H14 .063 or Aluminum Kynar color clad .050 listed in Bold Font (call factory for stock colors/sizes) (SLB) 4” Standard Louver Box or (SLF) 4” Standard Louver Flange (1.5” Flange)
Blade Length in Inches
Order duct size W x H width x height - all louvers will be 1/4" smaller both ways. ( 2"deep frame is standard on all louvers 12"heightandunder)
SLB Standard Louver Box
SLF Standard Louver Flange with 1 1/2"Flange
MODELS: (SLB) Standard Louver Box
(SLF) Standard Louver Flange ( with 1 1/2 " flange )
Standard Style - Galvanized Construction:
Optional: Galvanneal ( Paint grip)
Order duct size WxH width x height-all louvers will be 1/4" smaller both ways. (2" deep frame is standard on all louvers 12" height and under)
Frame: 16ga galvanized formed – 4" deep
Blades: 16ga galvanized formed – riveted to frame
Screen: 1/2" dia. 20ga galvanized expanded metal
Max. Single Section: 36"x72", 72"x36", 54"x54" (See free area chart*)
Multiple section assembly: Unlimited
Aluminum 3003 Construction:
Frame: .063 3003 aluminum formed – 4" deep
Blades: .063 3003 aluminum formed – riveted to frame
Screen: 1/2"dia. .032 aluminum expanded metal
Max. Single Section: 60"x36", 48"x60"
Multiple section assembly: Unlimited
Kynar Aluminum Color Clad Construction:
Frame: .050 aluminum color clad formed – 4" deep
Blades: .050 aluminum color clad formed-riveted to frame
Screen: 1/2"dia. .032 aluminum expanded metal
Max. Single Section: 48"x60"
Multiple section assembly: Unlimited
Description:
The Model: (SLB) 4" Standard Louver box or (SLF) 4" Standard Louver Flange (with 1.5" flange) is manufactured from 16ga Galvanized material formed and riveted. The stationary blades are a “J” style positioned at a 45 degree angle and spaced approx. 4" +/- on center. 20ga ½" galvanized mesh screen is positioned on the back side of the louver.
Options: Call factory for pricing.
2" deep frame (standard on 12” height and under)
4" deep frame (standard)
6" deep frame
Sill extension
Standard Louver Box (SLB)
Standard Louver Flange (SLF)
MODEL: RC Roof Curb
Standard Construction Features
•16 gauge galvanized steel
•1-1/2, 3 lbs. Density thermal and acoustical insulation
•Continuously welded corners
•Wood Nailer
Options
•Damper tray
•No Wood Nailer (deduct 1-1/2" for actual height)
Sizes that increase or decrease available.
Other sizes available.
MODEL: CSR Curb Support Rail
Our Curb Support Rails unique design is welded in 18ga galvanized steel sections that are continuously welded together. This design offers optimum internal reinforcement every 24” to 36”. The full Manufactured section is then attached to the 18ga base plate.
A continuous 2 x 4 wood nailer is attached to the top along with the removable counter flashing. The flashing provides an effective method of attaching roofing felts and assuring a water tight application. Standard sizes are 2’, 4’, 6’, 8’ and 10’ lengths.
Standard Construction
•18 ga Galvanized Welded Steel Construction
•16” Height
•2 x 4 Wood Nailer
•Counter Flashing Cover
•Internal Reinforcement every 24” to 36”
Options
•Height Change
•Heavier Gauge
•Wider Wood Nailer
•Insulated
MODEL: AD Insulated Access Door
6" to 12"
" to 24"
Locks: Zinc Plated
" thru 14" 2 cam locks
" thru 24" 4 cam locks
x
(OBN, PBN, OBS, PBS) Opposed or Parallel Blade Dampers
Non-Sealed (Balancing Damper) or Sealed (Control Damper)
MODEL: BDD Backdraft Damper
Description:
The damper frame is a 16ga welded galvanized construction that is
attached to the frame with 1/4" round plated rod and bronze bushings The stamped aluminum brackets and link age keep the blades operating together and the felt blade stops provide for quiet operation.
Standard Construc tion:
List dampers duct size (WxH) width x height - all dampers will be 1/4" smaller both ways
Frame: 16ga galvanized Hat channel – welded construction
Frame dimensions: 2-7/8" Hat channel (11/16 x 5/8 x 1-1/2 x 5/8 x 11/16)
Blades: Formed .025 3003 aluminum (3-1/2" +/-)
Bushings: 1/4" bronze oilite
Rod: 1/4" round CRS plated
Seals: 1/16" x 1/2" felt strips on blades
Linkage: .032 3003 aluminum brackets/.063 link age
Maximum Velocity: 1000 FPM
Maximum Size: 36"x36" – Larger sizes must be sectioned
Options:
Flange - (on in-take side or out-put side)
Counter balance
Spring load
MODEL: MVBD Med-Velocity Backdraft Damper
Description:
The damper frame is a welded 16ga galvanized hat channel construction. operation and link age is consistent to the parallel blade damper.
Standard Construc tion:
List dampers duct size (WxH) width x height - all dampers will be 1/4" smaller both ways
Frame: 16ga galvanized-hat channel-welded construction
Frame dimensions: 3-7/8" Hat channel (11/16 x 5/8 x 2-1/2 x 5/8 x 11/x16)
Blades: Formed .063 3003 aluminum
Bushings: 1/2" round bronze oilite
Axles: 1/2" x 2-1/2" CRS plated pins
Hardware: Plated steel-brass pivits-1/4" rd plated link age rods
Seals: 1/16" x 1/2" felt strips on blades
Maximum velocity: 3000 FPM
Maximum size: 36" x 48" - Larger sizes must be sectioned
