Industrial Propeller Fans

Industrial Propeller Fans – Belt Drive & Direct Drive

Northern Fan Canada Axial Filtered Air Vents are designed for low pressure building ventilation, room ventilation, industrial ventilation, commercial ventilation and industrial process application. Typical applications include heat, smoke, and fume removal; process ventilation and process air handling; proces drying with ambient or preheated air; comfort process cooling and general ventilation of buildngs. Available in direct drive arrangement 4 and corresponding belt drive arrangement 9. Sizes from 6 thru 96. Capacities: to 350,000 CFM. Static pressure to 2.5 inches water gauge.

Spark Resistant X-proof construction: wall fan for non-sparking x-proof applications is supplied in AMCA A (all aluminum or monel airsteram), AMCA B (aluminum wheel, or monel wheel), or AMCA C (buffer type) spark resistant construction. For AMCA A applications wheel is made of non-ferous material with monel shaft and special x-proof motor.

Propeller Fans – Wall Fans

High temperature construction: wall fan is avaialble in high temeparture construction with high temperature motor and steel prop, or stainless steel prop.

Corrosion resistant construction and chemical duty construction: for corrosive environment wall fans are avaialble in 304 SS, 316 SS, or 316 L stainless steel construction. For chemical process applications wall fans are available in fiber reinforced plastic (FRP) construction, or in polypropylene construction, or in plastic.

Propeller Fans – Wall Fan Accessories

Wall fan accessories: wall housing, wall cabinet, heavy gauge housing, extended wall housing, wall housing access door, inlet guard, outlet guard, caged guard, fixed louver, shutter, manual shutter with pull chain and quadrant lock, gravity automatic shutter, motorized shutter, back draft damper, shutter motor, BELIMO motor, NEP motor, Multiproducts motor, Delay switch, Speed controller, VFD, intake hood, discharge hood, weather hood, hood bird guard, hood bird screen, insect screen.

Controls and drives: pressure switch, end switch, electrical damper motor, delay switch, pneumatic actuator, speed control, vfd control, motor starter, carbon monoxide sensor, oxygen sensor, electronic gas sensors and others.

Propeller Fans – Wall Fan Speeds

At this juncture it is prudent to reiterate that a fan running at a particular speed can have an infinite number of operating points all along its characteristic curve. The fan will interact with the system to produce an operating point at the intersection of the system curve and the fan curve. Note that it is the system in which the fan is installed that will determine the operating point on the fan curve. Thus it is vitally important that the system designer accurately determine the system losses in order to ensure that the actual air flow rate is as close as possible to the design air flow rate.

Additional information can be found at the Northern Fan web site http://northernindustrialsupplycompany.com/

Oleg Cthetchel
Canadian Industrial Ventilating Engineer

Northern Fan Co.
http://northernindustrialsupplycompany.com/

Propeller Wall and Roof Ventilators – Northern Fan

Oleg Tchetchel

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Radial Blade Blowers & Fans

Northern Industrial Supply Company radial blade blower fans

Northern Industrial Supply Company radial blade blower fans can be in single width single inlet (SWSI), or double width double inlet (DWDI). Capacities: to 500,000 CFM. Northern Industrial Supply Company radial blade blower fans (industrial radial blade blowers) are supplied in welded heavy gauge steel construction to prevent flexing at high pressure. Radial Fans are available in direct drive arrangements 4/4V/4H/7/8 and belt drive arrangements 1/3/9/9S/9T/9H. Static pressure up to 100 inches water gauge depending on the class of construction. Typical class of construction is Class 1, 2, 3, 4, 5.

Radial Blade Blowers

Aluminum wheel, Steel wheel, or Alloy wheels are available on Northern Industrial Supply Company radial blade blower fans: industrial radial 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. They are used on pressure applications, material handling applications (plastic scrap, paper trim, granular material, low density bulk material) where wheel is reinforced with support gussets, or made of abraision resistant construction, or furnished of high strenght steel. Stainless steel wheel in 304 SS, 316 SS, 316 SS, 2205 SS are supplied for corrosive applications, or high temeparature applications. The pressure curve remains stable from fully open to fully closed position.

Heat fan construction can be furnished for up to 1000 F opertation and includes high temperature paint (up to 1000 F), special alloy construction, shaft cooler, shaft-cooler guard, and steel wheel, or alloy wheel, with steel, or alloy housing.

Shaft seal and low leakage construction for demanding low-leakage applications can be furnished with shaftss 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 construction and for high temperature construction. Heavy-duty spherical roller bearings are standard.

Cladding for sound attenuation and silencers for low-noise installations 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.

Standard Northern Industrial Supply Company radial blade blower fans accessories include: flash or 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 damper, inlet vane damper, external inlet vane damper, evase, electrical / pneumatic actuators.

Susan Terlitski
Canadian Industrial Process Designer

Oleg Tchetchel

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Roof Exhaust Fans and Roof Ventilators

Roof Exhaust Fans & Ventilators

Proper ventilation requires that there be a movement or circulation of the air within the space and that the temperature and humidity be maintained within a range that allows adequate evaporation of perspiration from the skin. It was formerly believed that the discomfort, headache, and lethargy commonly associated with poor ventilation were caused entirely by the increase in the amount of carbon dioxide and the decrease in the oxygen content of the air. There is evidence to show, however, that the deleterious effects result largely from interference with the heat-regulating mechanism of the body. Lack of air currents and the increase in relative humidity and temperature (especially noticeable in crowded, poorly ventilated places) prevent normal evaporation of perspiration and loss of heat from the surface of the skin.

A simple roof ventilator is essentially an opening in the roof with a cover to keep out rain and to prevent winds from interfering with its functioning. Natural convection is an appreciable aid to ventilation in a large building only if it contains sources of large amounts of heat. A further useful adjunct is a fan fan, device for agitating air or gases or moving them from one location to another. Mechanical fans with revolving blades are used for ventilation, in manufacturing, in winnowing grain, to remove dust, cuttings, or other waste, or to provide draft for a fire. The addition of distribution ducts to the fan and a system for forcing air into the building provides greater efficiency. Outlets are designed to attain maximum mixing of air and to move large amounts of air at low velocity so that temperature layers are eliminated. Factories have special suction hoods and enclosures to draw away localized dust, fumes, and heat. Incoming air may be cleaned of dust by filters or electrostatic precipitators.

Roof Exhaust Fan Ventilation

Natural ventilation depends on winds outside and convection currents inside a building. Winds raise air pressure slightly on the windward side of a building and lower it slightly on the lee side. The pressure difference promotes circulation into the building on the windward side and out of it on the lee side. Convection currents are caused by the sinking of colder and therefore heavier air, which displaces the warmer air. A building may have a roof ventilator to allow the rising warm air to escape. If there is an opening to the outside at the bottom of the building, fresh, cool air will be drawn in.

Deep mines, underwater tunnels, and other subterranean and submarine environments require elaborate mechanically operated systems for maintaining the air supply in a healthful condition. The lives of those working in, or traveling through, such areas depend upon a constant supply of fresh air; not only must the systems used be highly efficient, but there should be provision for emergencies in case of failure of the apparatus in operation. An outgrowth of studies of problems of ventilation is the development of methods of air conditioning heat pump is a reversible device that does mechanical work to extract heat from a cooler place and deliver heat to a warmer place. The heat delivered to the warmer place is, approximately, the sum of the original heat and the work done.

Such systems, unlike ordinary methods of ventilation, are independent of outdoor atmospheric conditions and can, therefore, maintain the indoor atmosphere at the most healthful temperature and humidity and can free the air of dust and other undesirable materials. They accomplish this, however, at a considerable cost in energy.

Roof Exhaust Fan Ventilator Uses

Roof ventilators are another option. They work in both summer and winter. In summer, roof ventilators reduce the build up of heat in the ceiling spaces, reducing the heat load on your insulation, meaning that the insulation works more effectively. In turn, you will save on your electricity bills as the air-conditioning systems will not have to work as hard. In winter, it reduces the amount of condensation that forms when warm, moist air from exhaust fans meets cold surfaces. Roof ventilators will also reduce the amount of corrosion and timber that occurs because of condensation. Roof ventilators should be installed where there is sarking underneath tiled roofs, when metal deck roofing is used, and when there is evidence of condensation in the roof spaces or ceilings.

A reliable ventilation system that can operate during a fire is both vital and essential. It prevents smoke logging, allows people to escape quickly, minimizes damages to property and contents and enables firemen to attack the fire without hindrance. Such power roof ventilators have the added advantage of providing normal day to day ventilation and in many cases can also be fitted with duct work for use in multi storey buildings.

Additional information can be found at the Northern Industrial web site http://northernindustrialsupplycompany.com/products/ilg.html.

Oleg Cthetchel
Canadian Industrial Ventilating Engineer

Roof Exhaust Fan Ventilators

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Radial Blowers

Radial Blowers and Radial Fans

Radial Blower fans are used for many purposes these days whether that be for items found in most households or in cars or factories. They play an integral part in our everyday lives and will do so for many years to come.

Northern Industrial Co. 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.

Radial Blower Applications

A radial Blower fan is used in a large number of different industries, whether that be for the fan in your car or a fan in your computer to keep it from heating up too much. The word Radial Blower means spreading out of a common centre which is how most fans work. They can also be used in large industrial type settings where there is a need to push either cooling air or just making sure there is air flow through a certain area.

Radial Blower fans can also be known as a centrifugal fan, which is made up of three different types of blade settings. They are the straight steel plate paddle wheel, the forward multi-vane multi-blade and the backward turbo vane. They are also used in Industrial type situations such as factories, large underground carparks and gymnasiums. They can be used in lots of different situations where there are large enclosed open spaces which need some type of circulation, whether that be blowing cold air through the premises or to just have some sort of air movement. There are different types of fans, which can be put in an industrial factory such as a mounted fan or a freestanding fan. Obviously to do a large area you need a large fan so having it mounted can be a benefit whilst having it freestanding can also be a benefit because it can be moved if need be. There are also different noise levels of these fans but most fans these days are relatively quiet especially in an area such as a factory.

A radial Blower fan is used in so many different ways and usually run by using electricity although a radial Blower fan can also run off a generator. Most households have a radial Blower fan, there is generally some sort of fan found in most houses. A radial Blower fan can be just your normal portable fan or a ceiling fan is normal is most humid areas. When you do have a ceiling fan it’s important to note that most of them must be put in by an experienced electrician otherwise you could have some serious problems with them. They are certainly a lot more economical than running an air conditioner, which is why they are so popular in humid areas where having some air flow cools down the place. Radial Blower fans are also found in most air conditioning units now, they are used to blow cooled air out of the unit and into the room.

Automobiles also have radial Blower fans placed in them to keep them from overheating, this is probably the most popular use for radial fans in this day and age. They’re placed under the hood of the car to keep the motor cool and stop it from overheating. Another use for radial Blower fans is also the home computer, obviously these are a lot smaller than most radial Blower fans but they get the job done, by stopping the computer from overheating also.

Oleg Cthetchel
Canadian air systems designer
Northern Industrial Co.

Industrial Radial Blower Fan

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Axial Ventilator Fans and Other Air Ventilators

Axial Ventilators

Axial flow fans or industrial axial fans move an air stream along the axis of the fan. The way these fans work is similar to the propeller on an airplane: the fan blades generate an aerodynamic lift that pressurizes the air. Axial Northern Fans use a propeller to draw the air into the fan then discharge it in the same axial direction. Typical types of industrial axial fans include:

* Tube axial fans (also called duct fans),
* Panel fans (also called wall fans),
* Personnel coolers,
* Roof Ventilators,
* Air circulators,
* Vaneaxial fans

As specialists in air moving applications and equipment, Buffalo Fan Co. understands industrial blower technology and designs systems for a host of facilities and industries, and work with the best names in industrial blower equipment, including TCF, NYB, IAP. A blower can achieve much higher pressure than a fan, and can be used to produce negative pressures for industrial vacuum systems. In selecting the right industrial blower equipment to serve your needs, you must consider conditions such as:

– Required airflow through the blower;
– Static pressure through the complete system;
– Suction pressure at the blower inlet;
– Airflow conditions through the blower;
– Altitude at which the blower will be operating;
– Composition of what is going through the blower – for example, is it explosive or flammable ?

Industrial Fans and Blower Fans

Northern Fan and exhaust TCF fans do not differ significantly from non-industrial types in their basic operation. The main characteristics that make blowers and fans industrial are the heavy duty construction, wheel type, shaft and bearings, materials and gauges used. Northern Fan Co. will work through all of the necessary considerations in developing an industrial air movement system that best addresses your needs and provides you with the most advanced industrial blowers and industrial TCF exhaust fans from the leading manufacturers.

Propeller / axial wheel types may include:

– Fixed pitch
– Adjustable pitch
– Swept back design
– Impeller wheel
– Low noise
– Reversible

Bifurcated Fans are direct driven axial fans where the motor is encased in a metal box to isolate it from the airflow. The term “bifurcated” means split in two branches, or parts. In terms of a bifurcated fan, the fan is constructed so that the fan rests between two forked channels, which carry the air, creating a void behind the axis of the fan itself. This makes Northern bifurcated fans ideal for exhausting or re-circulating fumes, gases and hot air up to high temperatures. The bifurcated fan motor must have access to ambient air, and have non-overloading characteristics. TCF bifurcated fans are typically used when the motor needs to be shielded from hot gases or other threatening conditions.

HVLS fans blanket a very large area with constantly moving air to create an expansive comfort zone. As a result, the big ceiling fan (up to 24 feet in diameter) can create an evaporative cooling effect during the summer months while de-stratifying uneven floor to ceiling temperatures in the winter. This results in significant energy savings since the heating system cycles less frequently.

Oleg Cthetchel
Developer of Industrial Equipment

Fan and Industrial Blower

Oleg Tchetchel

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Industrial Blowers and Industrial Fans

Industrial Blowers

Foundries are a 24 / 7 operation that demand the highest quality air moving equipment to maintain day to day operations. That is why Northern Fan offers a comprehensive line of heavy duty industrial fans designed to withstand the high temperatures and dirty airstreams associated with these environments. Depending on the specific application, we supply our fans with abrasion resistant construction, heavy duty ball bearings, center hung rotors, and a variety of dampers for controlling airflow and adapting to various conditions. Many fan applications surrounding the production of metals and minerals require special consideration when selecting the proper air moving equipment. High temperatures, corrosive gases and demanding operating conditions are commonly associated with processing these materials. As a leading supplier for the metal and mineral industry, Northern Fan provides the fans used in all stages of production including conveying, drying, classification, dust collection, pollution control systems, as well as fans for pressure / high volume applications.

Industrial Fans

The Food & Beverage Industry is comprised of wide variety of businesses that require fans for the cooling, drying, ventilating, packaging, and other process applications. Northern Fans are used in the conveying, drying and forming of animal feeds that allow for large scale production of beef, pork, dairy products, and poultry and eggs. The process of getting raw bulk grain materials from the farm to market also requires the use of fans for collecting, drying and properly storing food products. When storing fruits, vegetables and other temperature and humidity sensitive food, Northern Fans play a key role in moving refrigerated air in these precise climate control environments. Manufacturing bottles and packaging for the food and beverage industry require many fan types for numerous processes. Driven by demand, the ethanol industry is one of the first renewable fuel options for energy independence from fossil sources. The process of converting feedstock to ethanol requires a variety of fans from Northern Fan’s comprehensive line of products. This process involves dust collection at multiple points, negative lift systems for material transfer, dryers for byproduct processing, waste heat recovery, and storage ventilation.

Blowers and Fans

Northern Fan manufactures a wide range of fans and blowers for the paper industry. Due to chemical laden air and elevated temperatures associated with the digesting, bleaching, and cooking processes, special materials of construction, such as stainless steel, FRP, and special coatings are required. After the pulp is processed and prepped for the paper production, paper machines utilize our high pressure, high volume fans to provide supply and exhaust air to all stages of production from the wet end to the winding trim systems.

The recycling industry has diversified and matured in recent decades, resulting in its greater demand for high quality air moving equipment. Northern Fans and blowers are used for delivering the proper air performance for many recycling operations such as material handling and sorting, pneumatic conveying, heating, cooling, aerating, dust collection, and general HVAC. Once sorted, recycling is very similar to the manufacturing of original materials. Glass and metal are crushed, melted down, and purified, then remanufactured into such items as bottles, cans, countertops, and even concrete aggregate. Paper and cardboard are treated in chemical solutions and heated to recover the organic wood fibers to produce new product.With the broadest product range in our industry, Northern Fan can supply the equipment needed for the recycle industry’s many air moving applications. Our high quality and reliable fans and blowers will do the jobs – from transporting strands of shredded paper to providing circulation in glass ovens. Water treatment involves the removal of contaminants from waste water, sewage, and runoff. The various processes remove physical, chemical, and biological contaminants. These processes are known to be some of the most demanding applications for equipment and that is why water treatment facilities around the world rely on Northern Fan. It manufactures a variety of centrifugal and axial fans and blowers with special coatings and special materials such as stainless steel, fiberglass, and carbon fiber to withstand these corrosive environments.

Northern Industrial Supply Blowers and Fans have earned a reputation for consistently delivering products that are specifically designed to meet the industry’s stringent requirements. Northern Fan heavy duty industrial fans are used in numerous petroleum refining, chemical / plastic production, and pelletizing processes and can be customized for virtually every application including flare stacks, thermal oxidizers, heating (fired heaters), combustion air, desulfurization, dryers, pollution control systems, material handling, and steam generation (boilers). Due to the harsh operating environments commonly associated with the many petrochemical processes, Buffalo Blower offers a host of special bearings, disc couplings, mechanical shaft seals, and a wide selection of specialty coatings to comply with the industry’s governing and standard organizations such as:

• Air Movement and Control Association (AMCA) – Spark Resistant Construction;
• American Petroleum Institute (API) – Standards 560 & 673;
• American Welding Society (AWS) – D1.1 & D14.6;
• Appareils destinés à être utilisés en ATmosphères Explosives (ATEX) – Equipment Directive 94/9/EC;
• Process Industry Practices (PIP);
• American Standards of Mechanical Engineers (ASME).

For additional information please refer to http://www.northernindustrialsupplycompany.com/products/industrialfan_blowers.html

Oleg Cthetchel
Industrial Process Engineer

Industrial Centrifugal Blowers

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Industrial Fans and Blowers

Industrial fans and blowers are mainly used to circulate the movement of air and gas in ventilation applications. Their main function is to replace impure or contaminated air with fresh air by swirling it around. Almost every industry, including agricultural, chemical, medical, oil and gas, automotive, food processing, mining and construction use blowers for different purposes such as drying, reducing heat levels, reducing smoke and odors, processing and controlling gaseous fumes.

Industrial Fans & Blowers Manufacturers and Suppliers

Industrial blowers are manufactured using a range of durable plastics and metals, or a combination of both materials. For example, industrial blowers operating in corrosive environments are usually made of polypropylene because it provides greater structural integrity and corrosion resistance, and will never de-laminate. Typical recommendations in the construction of industrial blowers are – fiberglass for temperatures above 220 degrees, and metal if pressure is above 10 w.g. (water gage).

The size of the blower may be regulated by the size of the environment in which it is to be operated. For instance, some units are big enough to house both the fan and its power supply. Smaller, portable blowers are mainly used for cleanups and in spaces that require temporary circulation or air transfer.

The air movement and control association recognizes three classes of industrial blowers, classified with numerical designation that is based on how the fan is constructed. The United States’ specifications for industrial blowers depend on the airflow in CFM (cubic feet per minute), static pressure in inches, water gage, altitude and approximate air temperature. Here’s an example:

Air conditioning can often become too large of an expense for industrial areas, but the good news is that an industrial fan can bring some much needed relief in this case. Industrial electric fans can be quite helpful for places where heat stratification, dampness, and stagnant air become frequent problems. Also, for high static pressure an industrial fan is what you need. Also known as an industrial electric blower, these units replace air as well by blowing out the old and stagnant air for a wide area that otherwise would collect this air without replenishing it in entirety.

Large Industrial Fans

Industrial fans also are helpful in removing pollutants like dust and metal particles, carbon monoxide, nitrous oxides, sulfur dioxide, sulfuric acid, and hydrocarbon solvents. Plus, industrial electric fans clearly do not use as much electricity as an air conditioner, circulating air and cooling it at a fast rate for a large space. With high-powered, energy-efficient motors, the larger motor of an industrial fan is actually guaranteed to save energy costs.

Canada Blower Co. is a supplier of blowers and fan for Pulp and Paper Industries. Tough applications mean tough fans and blowers by Canada Blower. Canada Blower is a world wide distributor of industrial process ans OEM fans and blowers, as well as fan / blower 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. High-efficiency impellers result in low power consumption, operating costs, and quieter operation. All metal hardware is completely sealed from exposure to corrosion by incapsulating into FRP or plastic; the steel support frame and motor base are powder coated with a corrosion-resistant finish. In addition to being highly resistant to chemical corrosion, PP fans are self-extinguishing and will not support combustion.

Oleg Cthetchel
Canadian air systems engineer

Industrial Fan and Blower by Northern Fan Co.

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Centrifugal Industrial Blowers – NISCO Blowers and Fans

Centrifugal fans employ the use of a rotating impeller to increase the speed of air stream. The centrifugal speed increases as the air stream reaches the ends of the fan blades and is then converted to pressure. These fans are able to produce high pressures, making them suitable for harsh operating conditions, such as:

* Systems with high temperatures
* Moist or dirty air streams
* Material handling/conveying

Northern Fan Co. has considerable experience with air moving applications. Fans are the “heart” of all ventilation systems, and essential for all industrial processes that require air flow. Northern Fan Co. application experience with nyb fans and blowers is pivotal to the success of a complete air handling package and includes:

– Cast aluminum pressure blowers, axial and vaneaxial fans, industrial exhausters, roof ventilators, centrifugal fans and marine duty fans for a host of air moving requirements;

Continue reading Centrifugal Industrial Blowers – NISCO Blowers and Fans

Industrial Centrifugal Blower Fan – NISCO Blowers and Fans

A centrifugal blower is equipment that is used to get a influential very volume of air with simple vibration in a restricted a under restraint area just like the ones utilized in air conditioning, air-flow, heating and vacuum cleaners. A centrifugal blower ingredients air through its center and directs it through a perpendicular opening in the housing. Affiliate vane is used, that may be a vane disk that will increase pressure and flow of the gas moved. Ring blowers or facet method blowers are utilized in castration blowers, vacuum blowers, and industrial blower applications. Vacuum blowers are often used as a air pump or exhausted for removal or suction of air or gases. Choosing regenerative blowers needs associate research before its configuration.Normally, the blade is fitted on an electrical motor shaft. The blade spins internal housing with an inboard and outboard medium. Because the vane blades pass the water port, they draw air in.

Continue reading Industrial Centrifugal Blower Fan – NISCO Blowers and Fans

Backward Inclined Blowers – NISCO Blowers and Fans

To cover the widest range of system requirements, Canada Blower offers a family of airfoil and backwardly curved fan designs with overlapping performance envelopes. To maintain high efficiency and maximum economy, the system’s pressure and flow requirements are matched to one of eleven wheel designs with varying rotor widths and diameters. The selected fan is then sized to exact duty requirements. Wheels are available with either Canada Blower’s proven hollow airfoil blades for clean air, or solid backward curved or backward inclined blades for dusty, dirt applications.

Continue reading Backward Inclined Blowers – NISCO Blowers and Fans