Low silhouette direct drive upblast exhausters are ideally suited for moving large volumes of air at low static pressures. Capacities up to 25,130 CFM and up to 1/2 inch static pressure. The UD is designed to discharge air up and away from the building. Typical applications include all types of commercial, and industrial facilities such as warehouses, foundries, mills and manufacturing plants.   Features Windband Constructed of heavy gauge steel with a rolled flange for extra strength Channel cross tie member provides lateral rigidity Butterfly Dampers Constructed of heavy gauge aluminum Stainless steel hinge pins and nylon bearings provide quiet, low friction operation Dampers open and close against rubber bumpers for quiet operation Magnetic latches ensure positive closure and prevent damper chatter Water trough under damper hinge provides drainage for rain, melting snow and ice Aluminum Propeller Constructed of welded heavy gauge aluminum High efficiency circular arc airfoil blade design Precision balanced for smooth vibration free operation Housing Heavy gauge steel base with deep drawn orifice Steel structural frame carries the weight of motor, fan and drive assembly on sizes 42" and 48" Motors Continuous duty motors by nationally recognized manufacturers   Options/Accessories Roof Curbs Disconnect Switches Outlet Guard Coatings Fusible Heat Release Damper Link Aluminum Windband and Housing