Twin City Fan & Blower air kits are provided with a forward curved design in a double-width, double-inlet arrangement. This design allows for a low operating speed and economically sized shafting. These air kits provide reliable and quiet operation in ovens and plenums where it is not desirable to have the fan bearings in the airstream. The air kit design is commonly used to economically provide large volumes of air (up to 100,000 CFM) at static pressures up to 6″ w.g. in a compact design.
Air kits may be supplied in two standard configurations:
1. The single fan kit has one fan impeller centered in the plenum.
2. The twin fan has two impellers spaced on a common shaft in such a way that the restriction is the same on all four inlets.