Optional motor pack converts the damper to motorized operation. The HB series are designed to prevent backflow at static pressures up to in. Relief damper with adjustable start-open pressure or low velocity applications.
The MP-3motor pack is designed for installation on model WD -3series backdraft dampers only. For single panel damper, insert tab of actuator bracket into the slot on the side of the frame.
For dampers with center bars, the tab of the actuator bracket shoudl be inserted into the slot on the bottom of the center bearing .
Drawings Drawings for Dampers.
The program is configuration based and creates 2D and 3D models. The table depicts the radiated sound reduction that can be obtained in each octave band for the insulated housing and motor cover together. BACKDRAFT DAMPERS - Gravity or motorized parallel blade dampers (model WD - 3) are available for duct mounting.
These dampers feature sturdy galvanized frames, aluminum . Exhaust or supply arrangements.
Fabricated steel, aluminum or cast aluminum propellers. Drive frames and panels are constructed to match the level of duty and the motor size. Both belt drive and direct drive models.
Out of Wall Fire Damper - Static Rated.
True Round Commercial Backdraft. Utility centrifugal fan applications include commercial kitchens, fume hoods and emergency smoke control. All mechanically fastened models comply with TAS -2Uniform Static Pressure Test (ASTM E3).
Model HTOD- 3will close in the same direction as normal flow and model HTOD-3will close in the opposite direction as normal flow.
Available in 3V, extruded airfoil, fabricated airfoil, and round blade designs. HVAC technical data (Cut Sheets, Specifications and Submittals). Louver Faced Ceiling Diffusers.
Curved Blade Ceiling Diffusers.
Greenheck Direct Drive Sidewall Propeller Fan.
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