3.4 Exhaust Fans This section contains literature pertaining to the installation, operation and maintenance of the above component. Your RTT powder booth is equipped with a Aerovent tubeaxial fan for exhausting air from the powder booth. This type of fan was designed specifically for use in applications such as powder booths where the fan drive motor must be located out of the air stream. The fan blades are constructed of non-sparking aluminum for added safety. The fan and drive motor have been sized for the specific air flow of your booth, in accordance with all applicable environmental and safety requirements. Belt Driven Tubeaxial Fans The Aerovent model BTABD is a belt driven tubeaxial fan that is designed specifically for reliable and cost eff ective air movement in paint spray booth applications. Model BTABD exhaust fans are designed for applications requiring either a horizontal or a vertical airflow direction. > Sizes and Performance > Arrangement 9 – belt driven > Available in sizes from 12" to 42" diameter > Capacity from 1,295 to 36,131 CFM > Static pressures to 1.25" w.g. Construction Features > Aluminum non-sparking propeller dynamically balanced for quiet, vibration-free operation > Continuously welded, heavy-gauge, corrosion resistant, enamel coated steel housing with pre- punched inlet and outlet flanges > OSHA belt guards are standard > No-relubricable "sealed for life" ball bearings in mono-block housing to ensure reliable bearing performance > Designed f or continuous duty Housing Housings are heavy-gauge, hot-rolled steel construction, continuously welded and ground smooth to assure efficient airflow th r ough the housing. Inlet and outlet flanges are integrally rolled and punched to allow attachment to ductwork or accessories as necessary. When an inlet bell is required, the housing is formed with a bell shaped inlet instead of the inlet flange, eliminating the need for and the expense of a separate inlet bell. Drive Isolated from Airstream The shaft and b e aring assembly is mounted within an inner cylinder isolated from the airstream. The v-belt drive assembly is enclosed in an aerodynamically designed belt tube which maximizes fan efficien c y, minimizes air blockage and reduces noise generation. An access door on the belt tube is standard.
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