Guide Specs

SERIES 29 FIBERGLASS DIRECT DRIVE DUCT AXIAL FAN SK-880-29 NOVEMBER, 1997

The Fiberglass Direct Drive Duct Axial Fan shall be manufactured by Hartzell Fan, Inc.®, Series 29. Standard sizes are 12" through 60". Fans will be supplied without a guide vane section. The fan shall be packaged, completely assembled, and ready to install.

The resin used on fiberglass axial flow fans is Ashland Hetron 693 which is a polyester resin with 3% antimony oxide added to achieve a Class I flame spread rate of below 25 per ASTM E84 tunnel test standards. Construction shall conform to ASTM Standard D4167 for fiber reinforced plastic fans and blowers. The duct axial propeller shall be airfoil design, 6 bladed one piece construction. The propeller shall be die formed of cloth mat plus woven roving construction of solid fiberglass with an aluminum insert molded into the hub for secure attachment to the shaft. The airfoil propeller shall not have an aerodynamic stall characteristic.

Fan housings are constructed of solid fiberglass including the flanges which have drilled mounting holes. Interior and exterior surfaces of the housing shall have one coat of heavy resin applied. Rigid solid fiberglass motor mounts provide support for the motor. Motors shall be totally enclosed air over type. Extended lube tubes and grease fittings shall be standard when relubricable motors are specified. Blowers shall be designed for mounting in any position from horizontal to vertical. Standard internal hardware is austenitic stainless steel. Fiberglass fans may be used in temperatures up to 200° F.

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 AMCA Standard 210 for air performance and AMCA Standard 300 for sound.