Industrial high pressure blower fans, high temperature fan and blowers, centrifugal and axial fans, roof / wall exhaust and supply power fans and inline blowers, fans and ventilators.
BLOWERS DEPOT

Backwardly Inclined Fans

Industrial backward inclined BI fan blower

SWSI, DWDI, AcF, PLR, BI, BC, AF, ST, Backward Inclined Fans, Aerocline, General Purpose, GP, BL, Limit Load, LL, Buffalo Vent Set, BCV, BCA, BCM, BCS fans: industrial backward inclined fan blowers supplied in welded heavy gauge steel construction to prevent flexing at high pressure. Available in direct drive ventialtor arrangements 4 / 4V/ 4H / 7 / 8 and belt drive fan arrangements 1 / 3 / 9 / 10. Arr. 10 blowers are known as ventilating sets (vent fan sets). Available in single width single inlet (SWSI), or double width double inlet (DWDI) fans. Capacities: to 500,000 CFM. Static pressure up to 100 inches water gauge depending on the class of construction. Typical fan class of construction is Class 1, 2, 3, 4, 5.

Aluminum wheel, Steel wheel, or Alloy ventilator wheel: industrial backward inclined BI blowers and fans are supplied with aluminum wheel or corten wheel to meet requirements of AMCA A, and AMCA B spark resistant construction. Mild steel wheels are of all welded construction. If higher pressure is required wheel can be furnished of high strenght steel. Stainless steel ventialtor wheel in 304 SS, 316 SS, 316 SS, 2205 SS are supplied for corrosive applications, or high temeparature applications. The fan pressure curve remains stable to the right of the pick point.

Inlet flanges, outlet flanges, companion flanges: continuosly welded to match ANSI class 125/150, DIN, ISO, or custom hole pattern.

Shaft seal and low leakage ventilator construction: shafting is straightened to close tolerance to minimize "run-out" and ensure smooth operation. Teflon shaft seal, ceramic shaft seal and lubricated shaft seals (Buna, Teflon, Viton) are standard. Red silicone gasketing is provided for low leakage ventilator construction and for high temperature construction.

Heat fan construction up to 800 F: includes high temperature paint, shaft cooler, shaft-cooler guard, and steel wheel, or alloy fan wheel.

Cladding for sound attenuation and silencers: cladding consists of 2 inches mineral-wool insulation covered with a welded steel jacket. As an inexpensive alternative is offered slide-on acoustic cloth jackets. Inlet silencer/outlet silencer are supplied with matching flanges for further attenuation of the noise level.

Inlet filter assemblies: cell type, 1 inch, or 2 inch filters are available with filter cabinet to be mounted at fan inlet. Bird guard, insect screen and weather hood are optional accessories with inlet filter package.

Standard accessories: flash / raised access door, inspection port, drain and plug, unitary base, shaft and bearing guard, belt guard, motor cover, spring vibration isolation, rubber-in-share (RIS) vibration isolation, vibrating pads, outlet fan damper, inlet vane damper, external inlet vane damper, electrical / pneumatic actuators.

Controls and drives: variable frequency drives (VFD), across-the-line starters, RTDs, pressure sensors, flowmeters - complete control packages.


Call us today: 1-888-763-1800    E-mail: nis@primus.ca








































Sales engineers for high temperature oven circulating fans, sandblast blowers, stainless steel fans blowers,
mushroom roof ventilators and exhausters, fire and smoke fans, vacuum blowers, corrosion resistand fans, chemical resistant blowers, air table blowers, Aerovent Fan ventilators, fume fans, high temperature fans & blowers, Industrial Air Products fans, LAU ventilators, CBC fans, Peerless Blower fans, high vacuum fans, wall fan ventilators, power roof vantilator fans. ABB Blower fans are the finest quality blowers available for efficient movement of corrosive, humid, or polluted air, gases, and fumes. These fire-retardant and corrosion-resistant plastic fans are specially designed and
especially suited for hostile applications where coated metal blowers typically corrode. Northern Industrial fans
are proven thoughout the world and clearly recognized for superior quality, reliability, and efficiency. Vane axial fans are equipped with vanes that trail behind the propeller in the airflow  Manufacturers of backward curved fans, heat blowers, air fans and air blowers, positive displacement PD blowers, commercial air blowers, drying fans, dry air blowers, heavy duty air ventilators, compressed air blowers, wall / roof mounted fans, forward curved fans, radial blowers, fan blades, plug fans, high pressure fans, fume extractor fans, suction vacuum blower, warehouse fans / ventilators, large industrial fans, large industrial ventilators.

AB Blower Co. now offers gas-tight and zero leakage fans and blowers for containment of hazardous organic and inorganic compounds in industrial process plants and other critical applications. Special construction and shaft sealing devices are available for blower service requiring zero or minimal gas leakage into and out of casing.

AB Blower has a lot of experince with gas-tight and zero-leakage construction on fans and blowers, including: multistage lip shaft seals; Buna-N, Viton and Teflon seals; mechanical shaft seals; special fan housing gasketings; single and double carbon ring seals; hermetically sealed blowers; magnetofluidic and ferrofluidic seals; and packed stuffing boxes with barrier liquids and purgeable seals.

Specific code welding processes and special fan design features are used too - to ensure complete gas tight integrity.

Zero leakage and gas tight fans and blowers could be used in the following industries:

* Pollution Control
* Pulp and Paper Industry
* Printing and Converting
* Chemical Plants
* Power Generation
* Research and Development
* Petroleum
* Food Processing
* Paint and Ink Industries

Some special materials and alloys frequently used in gas tight fans, especially for service in hazardous, abrasive, corrosive and high temperature environments, include:

Corten, ASTM A36 Carbon Steel, Hastelloy, Inconel, Stainless Steels of different kinds, Titanium, Monel, Aluminum, Teflon, Rubber LIning.  These materials are typical for industrial applications requiring high strength alloys and super alloys too.

As an intermediate step between standrard fan design and air-tight design, Canad Blower offers a few stages of low leakage construction on fans and blowers - for industrial cusomers calling to minimize leakage fans due to the presence of toxic or corrosive gases in the airstream. As some system requirements are more stringent than others, and since some of the necessary modifications can be rather expensive, a few levels of Low Leakage Fan Construction are offered to choose from:

1) Heavy gauge housing construction with solid housing drive side, Neoprene Gasketing, and Viton, or Buna-N Rubber lip type shaft seal.
2) Full face sheet gasketing, Red Silicone or White Nitrile.
3) Contiunuosly welded fan housings;
4) Gas-purged mechanical shaft seals in lieu of lip seals - for greater sealing capability at the shaft hole opening.

I order to achieve a proper sealing, the mechanical shaft seal should be purged. The recommended purge pressure is 2 to 5 PSI above the process gas pressure.

Lip seals are furnished with two seal elements, each with a stainless steel spring for maintaining surface contact. The seal assembly is lubricated with" never-seeze". Mechanical seals are double or triple carbon ring seals mounted in a carbon steel housing. The seal housing is furnished with two purge ports.

To ensure proper fan sealing, Soap Bubble or Chalk / Kerosene tesing of the blower assembly is performed. This ensures that continuous weld has completely sealed the housing seams (liquid tight).

AB Blower is a world wide distributor of industrial process ans OEM fans and blowers, as well as fan components; including high pressure blowers, high temperature fans, spark resistant and explosion proof ventilators, tubeaxial and vaneaxial high pressure ventilators. Canada Blower also does existing fans and blowers repairs, re-build, as well as dynamical wheels balancing.

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