• These fans are specifically designed to bridge the transition between centrifugal and axial by combining the high flow of axial designs with the higher pressure, non-overloading characteristics of backward curved impellers. Galvanized steel housing as above with baked powder coat finish. External motor with built-in thermal overload protection and automatic reset. Permanently sealed ball bearings. External wiring box for ease of connection. 100% speed controllable. Mixed flow impeller. Suitable for air stream temperatures up to 140 F. Excellent heat dissipation to ensure long motor life. Tested and approved by UL and CSA. 3 Yr Factory Warranty.

Vortex Powerfans V-Series

The Vortex V-Series fans combine high performance and quiet operation. This fan is powered by a permanently lubricated and balanced external rotor motor equipped with a mixed-flow empeller. This impeller is a cross between vane axial and centrifugal design allowing more air volume than any other comparable design. The heavy duty galvanized steel and Hammertone epoxy baked finish contributes to the sound dampening and superior rust prevention. Furthermore, the V-Series fans operate at lower RPM making them even quieter. It comes with a 3 year factory warranty and are 100% speed controllable.