Number of Results: 61
The BD-100 backdraft damper mounts horizontally to allow vertical airflow up and prevent reverse airflow down. The dampers are open by air pressure differential and closed by gravity. Pressure: Up to 2 in. wg Velocity: Up to 1500 fpm Temperature: Up to 180°F Accessory to power roof ventilators and
The WD-400 backdraft damper series are non-motorized that mount vertically for intake air or horizontally to allow vertical airflow down and prevent reverse airflow. Models WD-400 and 410 have no flange, model WD-420 has a flange on discharge, and WD-430 has a flange on intake. The dampers open usi
The WD-340 backdraft damper bolts to the flanged outlet of Greenheck model USF utility blowers. Motorpacks are optional. Pressure: Up to 2 in. wg Velocity: Up to 2500 fpm Temperature: Up to 180°F
The WD-300 series backdraft damper prevents reverse airflow in horizontal exhaust applications. Model WD-300 has a flange on intake, model WD-320 has a flange on discharge and model WD-330 does not have a flanged frame. Dampers open using air pressure differential and close by gravity. Optional mot
The WD-200 series backdraft dampers are motorized to open when energized and the spring return closes when de-energized. Model WD-200 has no flange, model WD-210 has a flange on the motor side and model WD-220 has a flange opposite the motor. The WD-200 series is for horizontal or vertical mounting
The WD-100 series backdraft dampers mount horizontally to allow vertical airflow up and prevent reverse airflow. Model WD-100 has no flange, model WD-110 has a flange on the discharge side, and model WD-120 has a flange on the intake side. These dampers open using air pressure differential (assiste
Model SBS is a belt drive propeller fan, specifically designed for wall-mounted applications, supplying clean air. These units feature fabricated steel propellers. 300 to 86,850 cfm Up to 1.0 in. wg.
The SBCS is a belt drive propeller fan, designed for wall-mounted applications supplying clean air. Units feature fabricated cast aluminum airfoil blades and hubs. 12,750 to 87,000 cfm Up to 1.0 in. wg.
Direct drive fans with expanded performance range specifically designed for wall mounted clean air applications. Units feature cast aluminum airfoil or fabricated steel blades and hubs. Available in a full range of sizes between 20 and 60 inches. 250 to 78,600 cfm Up to 3.4 in. wg.
Model SS is a direct drive propeller supply fan designed for clean air, wall mount applications. The SS features fabricated steel or aluminum propellers. 100 to 7,100 cfm Up to 0.75 in. wg.
The BAER is a belt driven propeller fan, designed for expanded performance in wall mounted clean-air applications. Units feature cast aluminum airfoil or fabricated steel blades and hubs. The BAER features a standard belt-tensioning system and is available in sizes between 24 and 48 inches. 300 to