Continental Fan's UBV Upblast Roof Ventilators provide aerodynamically efficient performance with airflow capacities to 61,000 cfm. This rugged ventilator is constructed with a heavy duty welded steel base, galvanized butterfly exhaust damper section and a spark resistant cast aluminum airfoil axial impeller. The UBV belt drive upblast roof ventilator has its motor located outside the air stream, and is ideal for hot or contaminated air streams. Suitable applications for the UBV include ...This story is related to the following:Unit Ventilators | Ventilating Air Exhausters | Motor Driven Blowers | Roof Ventilators