DSI

Square Inline Fan, Mixed Flow Impeller, Direct Drive

Application

Twin City Fan & Blower’s Model DSI direct drive square inline mixed flow fans are designed for supply, exhaust and return air in duct applications handling relatively clean air. These fans deliver market-leading efficiency and quiet operation in a compact inline design that can be mounted in horizontal, vertical or angular orientations. Outward bent flanges with optional slip fit companion flanges simplify installation and side access panels allow service without removing duct connections.Model DSI mixed flow units feature airfoil-bladed mixed flow impellers that combine axial airflow with centrifugal pressure capability. This advanced aerodynamic design reduces brake horsepower and promotes low sound levels, delivering exceptional lifetime value through energy savings and lower operating costs while maintaining required system performance. Units are statically and dynamically balanced and manufactured under strict quality standards to ensure reliable, long-term operation.

Also available with a backward inclined impeller: DSI Centrifugal Square Inline

Sizes (impeller diameters)

• 20 to 30 inches (510 mm to 765 mm)

Performance

• Airflow to 16,000 CFM (27,200 m³/hour)
• Static pressure to 3 inches w.g. (750 Pa)