VSIFBD Specification
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TYPICAL SPECIFICATIONS
Model: VSIFBD


Description: Fan shall be of the "Square in-line" type with a square inlet and outlet. Fan shall be designed for floor mount or hung installations in-line with ducting, and have a belt driven centrifugal wheel. Fan shall be a corrosion resistant steel, belt driven, square inline blower.

Application: Square In-Line Duct Blowers are suitable for various applications. Commonly mounted indoors with both inlet and outlet ducts to supply or exhaust air. Square In-Line Duct Blowers are engineered to discharge air, fumes and other contaminants horizontally or vertically in a duct.


Construction: Square In-line Duct Blower(s) shall be constructed of steel. A removable cover shall provide blower motor access, and drive access shall be provided on both sides through removable panels. Blowers shall be belt driven; centrifugal backward inclined, with cast iron pillow block, re-greaseable ball bearings having a minimum L50 (average) life of 200,000 hours. The shaft shall be keyed at both ends.

Drives are to be selected for 150% of driven horsepower. Blower pulley shall be fixed, machined, cast iron. Motor pulley shall be cast iron, variable speed.

Housing
The blower shell shall be constructed of heavy-gauge galvanized steel. Side panels shall be removable for service access.

Wheel
Backward inclined non-overloading, all-aluminum wheel.

Motor & Motor Compartment
Motor shall have permanently lubricated ball bearings and be of voltage, phase, and enclosure as specified. A motor cover shall be supplied as standard.

Shaft and Bearings
Shafts shall be precision ground and polished. Bearings, selected specifically for air handling duty, and of the pillow block re-lubricatable type, shall be selected to have a predicted L10 life of not less than 200,000 hours at maximum cataloged operating speed.

Belts & Drives
Belts and drives shall be sized for a minimum of 150% of the driven BHP. Drives shall be of cast iron and keyed to the shafts.

Product: Fan shall be model VSIFBD as manufactured by Ventilation Direct.

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