The TDI direct drive series of axials maximize efficiencies utilizing cast aluminum, airfoil propellers. Main features include compact size and minimal maintenance. TDI fans can use variable frequency drives (VFD) to accommodate modulating performance requirements. Typical applications range from clean air exhaust to emergency smoke control. The TDI has been tested to exhaust airstream temperatures up to 300º F (149º C) for a minimum of 5 hours.

• 3,000 to 49,000 cfm
• Up to 1.1 in. wg