Guide Specs

SERIES 46 BELT DRIVE DUCT AXIAL FAN, STEEL SK-880-46 NOVEMBER, 1997

The Belt Drive Duct Axial Fan, Steel, shall be manufactured by Hartzell Fan, Inc.® Series 46. Standard sizes are 12" through 60". This fan will be supplied without a guide vane section.

The duct axial propeller shall be an airfoil design, 6 bladed, one piece construction cast of 319 aluminum alloy in compliance with Federal Specification QQ-A-601E and ASTM B26. Propellers shall be retained on the motor shaft with a split taper bushing.

Fan housing shall be minimum 12 gauge rolled commercial quality, carbon steel, continuously welded in compliance with AWS D1.1 standard. Standard surface coating system shall be phosphatized surface preparation with an industrial grade air dry enamel paint. All flanges have slotted mounting holes. Rigid motor mounts provide support for the motor. Fans are suitable for temperatures up to 200° F.

Fan shafts shall be ground and polished carbon steel. Bearings shall be located in a drive compartment on the negative pressure side of the propeller. Bearings shall be heavy duty, self-aligning ball or roller bearing type mounted in pillow block housings. Bearings shall have extended lube lines and shall be relubricable for continuous service. Minimum L-50 bearing life at maximum catalog speed, horsepower, and static pressure: 400,000 hours (horizontal). Minimum L-50 bearing life at maximum catalog speed, horsepower, and static pressure: 250,000 hours (vertical). Variable pitch drive sheaves shall be standard on fans up to and including 10 HP, through 48" size. Fixed pitch drives standard on all 54" and 60" fans. Belts shall be "V" type, heat, oil, and static resistant and sized for continuous service.

The fan assembly shall be dynamically balanced at the Hartzell factory prior to shipping. Fans shall be balanced in accordance with AMCA Standard 204-96, fan application category BV-3 (comparable to Grade G6.3). Fans shall be manufactured in accordance with Hartzell's standard quality assurance procedures. Fan performance shall be based on tests conducted in Hartzell's AMCA accredited test laboratory and in accordance with the latest revision of AMCA Standard 210 for air performance and AMCA Standard 300 for sound. Fans shall be licensed to bear the AMCA Certified Air Performance Rating Seal.