Duct Fans
16Pages

DUCT FANS TUBEAXIAL FANS • Capacities to 86,000 CFM • Static pressures to 3”WG VANEAXIAL FANS • Capacities to 100,000 CFM • Static pressures to 5”WG • Capacities to 60,000 CFM • Static pressures to 2”WG • Temperatures to 350°F. THE NEW YORK BLOWER COMPANY 7660 Quincy Street Willowbrook, IL 60527-5530 Visit us on the Web: http://www.nyb.com Phone: (800) 208-7918 Email: nyb@nyb.com TUBULAR ACOUSTAFOIL® • Capacities to 140,000 CFM • St

DUCT FANS Duct Fans are designed and constructed for low pressure ventilating and industrial exhaust applications requiring the compactness of an axial fan. DESIGN FEATURES CONSTRUCTION FEATURES • Capacities – to 60,000 CFM. • Pressures – to 2”WG. • Thirteen sizes – 12” through 60” wheel diameters. of arrangements – or • Choicemounting positionsdirect-drive6]. belt-drive in five [see page • Steel wheel – curved blades assure efficient operation. Precision rolled tube – for minimum tip clearance...maximum efficiency. Arrangement 9-D with optional easy-access construction, motor, drive, and...

APPLICATION ADVANTAGES New York Blower’s Duct Fans are designed for lowpressure ventilation and industrial-process applications. Uses include heat, smoke, and fume removal; process drying with ambient or preheated air; comfort and process cooling and general ventilation. All applications can be handled in either supply or exhaust configurations. Numerous modifications and accessories make the Duct Fan suitable for a wide range of systems. In applications where equipment space is at a premium, the compact flow-through design of the Duct Fan can reduce system space requirements by more than...

ACCESSORIES AND MODIFICATIONS 1. INLET BELL WITH GUARD – see page 5 Inlet bell minimizes losses associated with non-ducted inlet applications. Includes wire guard. 2. VIBRATION ISOLATION – see page 6 Rubber-in-shear or spring-type isolation mounts reduce the transmission of vibration to the mounting structure. 3. SAFETY EQUIPMENT/WEATHER COVER Belt guards, inlet and outlet guards, and weather covers are available. Selection of appropriate safety accessories is the responsibility of the system designer familiar with the specific installation. 4. COMPANION FLANGES – not shown Fit flush with...

INLET BELL Catalog ratings shown in this bulletin are for Duct Fans with free inlet and ducted outlet. When no inlet duct is used, entrance loss must be added to the static pressure calculated for the system. For bare inlets, that loss is equal to the fan velocity pressure. Example: 4200 FPM velocity = 1.1 "WG [see Chart I at right]. Inlet bells render such loss negligible and are available at nominal cost. Sizes 127 through 487 constructed of fiberglass reinforced plastic; Sizes 547 and 607 constructed of steel. Available for all sizes of Duct Fans with matching standard flanges for either...

MOUNTING ARRANGEMENTS Arrangement 9-D with optional easy-access construction, motor, drive, and belt guard. Arrangement 4-S with optional spring isolation. 9-M Mounting Positions viewed from discharge end WITH MOUNTING LEGS Fabricated mounting legs facilitate fan mounting on the floor, ceiling, or in a vertical position on a wall. Flange connections are standard. Fans are equipped with four mounting brackets suitable for floor, platform, or ceiling mounting. Motor is located on centerline between two of the four brackets on Arrangement 9. Flange connections are standard. Mounting Positions...

DIRECT-DRIVE DUCT FANS Available in Sizes 127 through 547, the direct-drive Duct Fan is ideally suited for relatively clean-air applications at temperatures to 105°F. Elimination of external motor mounting structure permits installation in extremely tight locations and reduction in overall unit weight. The Arrangement 4 configuration virtually eliminates all regularly scheduled maintenance. External inlet vane dampers and variable frequency motor controllers are available to modulate airflow in process or commercial air-conditioning systems. Contact your New York Blower sales representative...

Belt-Drive Duct Fans Belt-drive Duct Fans are available in Sizes 127 through 607 for more aggressive airstreams or applications where temperatures may reach 350°F. Belt-drive arrangements include a shaft, bearings, and belt-well assembly that isolates bearings and drive components from airborne moisture and contaminants. In the event that system pressures or flow requirements change, belt-drive Duct Fans offer inherent performance flexibility. New performance is easily achieved by modifying readily accessible drives.

Size 187 Belt-drive Wheel diameter: 18" Inlet and outlet area: 1.82 sq. ft. CFM Performance certified is for installation Type B: Free inlet, Ducted outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). PAGE 10

Size 427 Belt-drive Wheel diameter: 42" Inlet and outlet area: 9.97 sq. ft. CFM Performance certified is for installation Type B: Free inlet, Ducted outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). PAGE 12

Performance certified is for installation Type B: Free inlet, Ducted outlet. Power rating (BHP) does not include transmission losses. Performance ratings do not include the effects of appurtenances (accessories). Electronic Catalog A complete New York Blower Catalog on one CD. No more manual calculations and bulky product catalogs. A critical tool for all system-designers and engineers who select and specify air-moving equipment. SELECTION BENEFITS • Fast, accurate fan selection. • Automatic altitude, temperature, and density corrections. • Sound levels by octave band. • Fan-performance...

Material Specifications Dimensions in inches. Weights in pounds. WR2 in lb.-ft.2. Tolerance: ±V8" Bearing types: A-Link-Belt 200 Series. C-Link-Belt P300 Series. Wheel weight includes bushing. nyb reserves the right to substitute bearings of equal quality. MOTOR SIZE CAPABILITY FAN FLANGE DIMENSIONS Size Arrangement 9 maximums are with or without *Holes spaced equally, straddling centerline. tSizes 18-60 have slotted holes. weather cover. INLET BELL DIMENSIONS O.D. INLET VANE DAMPER DIMENSIONS Size