Tubeaxial Fans (industrial tubeaxial ventilators)
Chicago Blower tubeaxial fans are designed for relatively low pressure building ventilation and industrial process applications that include heat, smoke, and fume removal; process ventilation and process air handling; proces drying with ambient or preheated up to 650 F air; comfort process cooling and general ventilation of buildngs. Tubeaxial fans are vailable in direct drive arrangements 4/4M/4V/4D/4R and corresponding belt drive arrangements 9/9M/9V/9D/9R. Capacities: to 200,000 CFM. Static pressure to 4 inches water gauge.
Aluminum wheel, Steel wheel, FRP or
Alloy wheels are available in tubeaxial fans for non-sparking
explosion-proof applications is supplied in AMCA A, AMCA B, or AMCA C
spark resistant construction in all aluminum welded construction, or in
monel. For corrosive environment tubeaxial fan is supplied in 304 SS,
316 SS, or 316 L stainless steel construction. For chemical process
applications tubeaxial fans are made from fiberglass reinforced
plastic FRP, or in polypropylene construction, or in plastic. For high
temperature applications up to 650 F tubeaxial fan is supplied
typically with steel welded wheels.
Heat fan construction up to 725 F includes high temperature paint, shaft cooler, shaft and bearing tunel cooling auxiliary blower (optional), insulated shaft and bearing tunel, steel, or alloy wheel.
Cladding for sound attenuation and silencers consists of 2 inches mineral-wool insulation covered with a welded steel jacket. Acoustic cloth jackets are available as inexpensive alternative. Inlet silencers/outlet silencers are supplied with matching flanges.
Inlet flanges, outlet flanges, companion flanges are continuosly welded to match ANSI class 125/150, DIN, ISO, or custom hole pattern.
Shaft seals: tubeaxial shafting is straightened to close tolerance to minimize "run-out" and ensure smooth operation. Bearings are of pillow plock, or flaged bearings. Ceramic shaft seal and lubricated shaft seals (Buna, Teflon, Viton) are standard. Red silicone gasketing is used on high temperature applications.
Inlet vane damper assembly: external inlet vane damper is provided for precise air volume control.
Standard accessories include flash / raised access door, inspection port, drain and plug, 3-way drain, mount feet, belt guard, motor cover, spring vibration isolation, rubber-in-share (RIS) vibration isolation, vibrating pads, electrical actuators, pneumatic actuators.
Roof mounting option: roof curb mount cap, roof curb, weather band, weather shroud with integral flap damper, butterfly damper assembly, magnetic latches.
Controls and drives: variable frequency drives (VFD), across-the-line starters, RTDs, pressure sensors, flowmeters - complete control packages.