Guide Specs

SERIES 55 BELT DRIVE VANEAXIAL FAN, HIGH TEMPERATURE SK-880-55 NOVEMBER, 1997

The Belt Drive Vaneaxial Fan, High Temperature shall be manufactured by Hartzell Fan, Inc.®, Series 55. Standard sizes are 12" through 60". Available with HVA or HVB propellers. Fans can be supplied with or without a guide vane section.

The vaneaxial propeller shall be an airfoil design, 7-bladed, one-piece cast of 319 aluminum in compliance with Federal Specification QQ-A-601E and ASTM B26. The propeller shall be straight bored and attached to the fan shaft utilizing a key and setscrews. A safety plate, bolted to the fan shaft shall also provide additional attachment.

Fan housing shall be minimum 10 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. Extended lube tubes and grease fittings shall be standard when relubricable motors are specified. All sizes shall have steel flanges continuously welded to the steel drum. This fan is suitable for temperature up to 350° F.

Fan shafts shall be ground and polished carbon steel. Bearings shall be located in a drive compartment on 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: 500,000 hours (horizontal). Minimum L-50 bearing life at maximum catalog speed, horsepower, and static pressure: 300,000 hours (vertical). Fixed pitch drives are standard. Belts shall be "V" type, heat, oil and static resistant and be sized for continuous service. Motor position shall be adjustable for belt tensioning.

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 in accordance with the latest revision of AMCA Standard 210 for air performance and AMCA Standard 300 for sound.