Architectural Equipment and Support
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Model AMD3&4 BALANCING DAMPER SINGLE THICKNESS BLADES GALVANIZED STEEL CONSTRUCTION 200oF MAX TEMP AMD3&4
Standard Construction BLADE - 16ga. Galvanized steel, single piece 8" maximum width SIDE SEAL - None BLADE SEAL - None Specifications Leakage resistance Not rated for tight shutoff Operating Torque @ .5" Static, 100 FPM velocity 3.1 in-lb/sq ft @ 1" Static, 1000 FPM velocity 3.5 in-lb/sq ft Velocity and Pressure.............................................................................................................................................. 12" wide damper - - 6000 FPM 6" WC , 24" wide damper - - 4500 FPM 6" WC, 36" wide damper - - FMP 6" WC, 48" wide damper - - WC 1500 FPM 6" WC Velocity and Pressure limits recommended to meet other performance specifications (not structural limits) |
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Model HDR-1000 VOLUME CONTROL DAMPER 6400 FPM MAX VELOCITY 13-1/2" WG MAX DIFF. PRESSURE 6"TO 72" DIA. Standard
Construction Frame: 8" x 1-1/2" x 10ga. Galvanized steel through 25" dia 10" x 2" x 10ga. Galvanizedsteel from 26" to 36" dia. 10" x 2" x 3/16" thick Galvanized steel from 37" to 60" dia. 3" x 2" x 3/16" thick steel angles, 6" deep from 61" to 72" dia. (see optional frame styles) SLEEVE: 10ga. Steel
through 36" dia. (used with optional frames)..........................................................................................
3/16" thick steel from 37" to 72" dia. (optional
frames) BLADE: 3/16" Steel, welded to axle through 24" dia. ..................................................................... 1/4" Steel, welded to axle from 25" to 48" dia. ................................................................. 3/8" Steel, welded to axle from 49" to 72" dia. AXLE: 3/4" Dia. steel full length through 36" dia. ..................................................................................................................... 1" Dia. steel full length from 37" to 48" dia.................................................................................................................... 1-1/4" Dia. steel full length from 49" to 60" dia. ........................................................................................................... 1-1/2" Dia. steel full length from 61" to 72" dia. BEARINGS: Ball bearings FINISH: One coat AES standard gray primer ACTUATOR: Extended shaft with lever arm is standard (lever arms shipped loose) Optional
Seals:..........................................................................................................................Optional
Frames:
 
Product Notes Any variations to the standard specifications must be factory approved in advance. .......................................... Maximum temp is 250oF without seals and 150oF with seals............................................................................ Dampers are for clean air use only. .................................................................................................................... .. Please specify mounting hole pattern necessary.
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Model WM-VCD ROUND VOLUME CONTROL DAMPER SINGLE THICKNESS BLADE GALVANIZED STEEL CONSTRUCTION  Product Notes Any variations to the standard specifications must be factory approved in advance Frame is constructed with bead and crimp for easy installation Model WM-VCD is designed for low velocity, medium velocity, and non- corrosive air systems Blade is mechanically locked and welded to axle to assure long life and ease of operation. Standard Construction FRAME: 20ga. Galvanized steel (6"-14" dia.) 18ga. Galvanized steel (16"-40" dia.) BLADE: Galvanized steel, single thickness: 20ga. from 6" to 14" dia. 18ga from 16" to 40" dia. AXLE: 3/8" Square plated steel BEARINGS: Neoprene pressed into frame FINISH: Mill with touch-up on welds ACTUATOR: Quadrant locking handle mounted on 2" standoff for easy operation Available Options FRAME: Heavier gauge galvanized steel - Stainless steel - Aluminum BEARINGS: Bronze - Stainless steel ACTUATOR: Manual or electric |
