VTBD

Type VT Vaneaxial Fan, Belt Driven

Application

The VTBD, Type “VT”, vaneaxial fan incorporates a vane section that is attached to the discharge of the TTABD tubeaxial fan for higher pressure applications. The VTBD is designed for applications such as in-duct space ventilation, roof mounted ventilation, industrial fume exhaust and high temperature process ventilation.

The VTBD’s fan impeller and hub is constructed of a precision solid casting of A319 aluminum, having seven airfoil blades and a malleable split taper lock bushing for mounting to the shaft. The blade angle setting is 34° at 3/4 radius. Impellers are statically and dynamically balanced prior to assembly. The complete fan assembly is trim balanced after final assembly.

Sizes (impeller diameters)

• 12 to 60 inches (305 mm to 1,525 mm)

Performance

• Airflow to 81,200 CFM (138,000 m³/hour)
• Static pressure to 4.5 inches w.g. (1,120 Pa)