Industrial Blower Fan Ventilation

Aeration involves moving air through either a solid or fluid medium bed and is used for various purposes. Depending on specific material being aerated, our fans are utilized for moisture control in applications such as grain bin storage, and also provide oxygen and control moisture/temperature in composting applications. Due to varying environmental conditions, fans used in aeration systems often require special construction such as fiberglass, alloys and specialty coatings.

Industrial Fans for Ventilation

The treatment of wastewater can result in a variety of unwanted and hazardous gases, such as H2S and SO2. As the application specialists, Northern Fan has the expertise needed to supply the proper air moving equipment that is specifically designed for resisting the corrosive nature of these compounds. In other pollution control systems, our fans are installed on the clean side, which offer a higher efficiency design for moving gases into a scrubber or other device. One of the major challenges in wastewater and sewage treatment plants is controlling the odors that are emitted. These plants are often located in residential areas and forced to adhere to strict codes and regulations. These odors are caused by gases such as hydrogen sulfide and ammonia. To reduce odor emissions a variety of systems have been found effective, such as thermal oxidation, chemical scrubbers and biofilters. The fan requirements in these processes are similar in that they require special alloys, coatings or fiberglass construction.

Proper Industrial Blowers & Fans

Through decomposition, landfills produce syngas, a combination of methane carbon monoxide, and other hazardous gases. To avoid dangerously high levels of these gases, forced draft fans are used to drive fresh air into the landfill mass. Induced draft fans are also used for pulling noxious gases out of the landfill for safe disposal or for collecting them as a fuel source. The fans used in these applications often require special materials or coatings along with spark resistant construction. Depending on your specific needs, Northern Industrial Supply Company Fans & Blowers will work with you to select the proper air moving equipment.

High Volume Industrial Blowers and Fans

High volume, low concentration or non-condensable gases refers to gases that are in concentrations below their explosion limit. These gases are drawn through an induced draft fan and then processed with a RTO (regenerative thermal oxidizer) or incinerator that ultimately burns the gases for safe disposal. HVLC gases are often corrosive and at elevated temperatures, that is why we provide a number of fans that are corrosion resistant. In addition, we offer leak-tight construction to avoid emitting these toxic, flammable gases into the environment. In the case that these gases are above their explosion limit, Buffalo Blower supplies a full line of non-sparking fans that allow for the safe movement of hazardous gases. Based on your specific requirements, our fans can be constructed with aluminum and monel materials.

Large Industrial Ventilation Fans

In a manufacturing environment, vacuum systems are used to move and transport waste material. Sawdust, metal shavings, and other waste is easily transported away from work areas to a specified collection point for simplified clean up and removal. Vacuum systems are also used to provide suction for the manipulation of components, various materials and forming processes. These systems usually consist of long runs of relatively small diameter pipe or ducting. This results in the need for high pressure low flow fans.

Boiler Application Industrial Blower Fans

Boilers are used in a variety of industries for producing heat and energy. Many boiler applications will burn fuel readily available on site, such a byproduct from the given process. An example of this is Bagasse, which is a fibrous matter that remains after sugarcane is processed to extract their juices. The bagasse is a biofuel used for many boiler applications. Fans in boiler applications are forced draft, induced draft, over fire air and combustion air.

Large Industrial Fan Characteristics

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.

For additional information please refer to http://www.northernindustrialsupplycompany.com/outside/request4.html

Oleg Chetchel
Industrial Process Equipment Engineer
airknife@cogeco.ca
Northern Fan Co.
http://www.northernindustrialsupplycompany.com/outside/request5.html
http://www.northernindustrialsupplycompany.com/outside/request3.html

Industrial Processes Ventilating

airknife@cogeco.ca

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Industrial Blowers & Fans Ventilation

Thermal oxidizers usually provide the highest possible VOC control and efficiency through high-temperature conversion of hydrocarbons to products of combustion. SysTech provides specialized thermal oxidizers, which include features such as:

Operation at high temperatures to combust solvents into water and carbon dioxide.
High destruction efficiencies which are ideal for use with most VOC applications.
Heat recovery capabilities ranging from 50% to 95% resulting in low operating costs.

Industrial Fan Ventilation Importance

VOCs, or volatile organic compounds are emitted by a wide array of products and processes. Paints, lacquers, cleaning compounds, printing, and a host of other substances found in industrial environments release pollutants into the air that have adverse long and short term health effects. VOC pollution is especially hazardous in the high concentrations found indoors.

Industrial Blowers Fans Applications

Northern Fan Co. custom engineers effective process gas exhaust systems for industrial applications, considering factors such as:

VOC loading of the gas stream;
Regulatory requirements;
Solvent recovery needs;
Lifecycle costs.

Industrial Fans and Blowers Features

Catalytic oxidizers achieve extremely high levels of VOC control at lower temperatures. Northern Integrated Systems Co. provides specialized catalytic oxidizers with features such as:

Little or no natural gas required to sustain required temperatures,
Recuperative catalytic oxidizers, a very cost-efficient way to manage solvent emissions,
Ability to treat nitrogen containing organic compounds without the formation of NOx,
VOC control while consuming less energy due to lower operation temperatures.

Industrial Pressure Blower Safety

Due to NFPA standards and a growing awareness of workplace health and safety hazards, industry has seen an increasing demand for effective explosion protection systems. The flammable gases and combustible dust resulting from many industrial and manufacturing processes create a serious threat, which necessitates dependable explosion prevention. Protection is also needed for potentially explosive environments that include functions such as:

Conveying – Elevators, Pneumatic Ducts, Separators, Vapor Control;
Processing – Coaters, Cookers, Dust Collectors, Dryers, Paint Booths, Sanders;
Pulverizing – Ball Mills, Cage Mills, Flakers, Granulators, Grinders, Shredders;
Storage – Bins, Cyclones, Flammable Liquid Storage Areas, Hoppers, Tanks.

Many explosion prevention measures will comprise an explosion protection system, as well as measures to contain or mitigate potential explosions.

Industrial Blowers and Fans Ventilation

To obtain a reasonable degree of personnel comfort in hot weather, there are three basic factors that should be provided for in the ventilation and cooling system of a commercial or industrial building. The first step toward controlling the hot air problem is to provide for the removal of excessively hot air from the building. This superheated air frequently mixes with the air in the cooler areas of the building to produce an overall temperature increase. As superheated air is frequently localized around heat-producing machinery, it should be exhausted from the building near its source.

For additional information please refer to http://www.northernindustrialsupplycompany.com/burlington/request5.html

Oleg Tchetchel
Industrial Ventilating Designer
airknife@cogeco.ca
Northern Fan Co.
http://www.northernindustrialsupplycompany.com/burlington/request7.html
http://www.northernindustrialsupplycompany.com/burlington/request2.html

Industrial Ventilation System with Power Fans

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Oleg Tchetchel

airknife@cogeco.ca

***

Industrial Fans and Blowers

Industrial Fans & Blowers

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.

Industrial Pressure Fan

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 warehouses, especially profit from these large units because the fans can support a higher CFM rating without the vibrations of a smaller fan. Most electric industrial fans have blades of a higher more durable construction, usually consisting of some kind of metal. This allows the blades to move more air at one time without all the force being applied to the fan and making the motor work harder.

Industrial Fan Types

Industrial fans include several types such as duct fans, roof and ceiling ventilators, wall mounted fans, pressure blowers, and freestanding units with different mounting options. For extreme conditions and plants, drum fans can be used to move even larger amounts of air. These types of fans come with wheels attached and can be rolled to the area that circulation is needed the most. Some manufacturers even sell just the fan heads for a more freedom and a reduced assembly and cost on the company.

Industrial Fan Motors

Powerful motors for reducing excessive noise are used in industrial fans. The motor will not be working at its top speed to produce the necessary airflow, therefore it will be quieter. Industrial electric fans are also very versatile; there are floor fans, wall mounted fans, and pedestal fans that all come in industrial grades. If you plan on a very large space, a pivoting fan is a good choice as you can manipulate the direction of the air and direct it to where it is needed most. Some even come with stands to make these larger fans easy to roll from place to place.

Electric Industrial Fans

These motors are designed to change a large amount of electrical energy into useful fan work. Often as electric industrial fans are in operation for an entire day period, opposed to a home fan which is turned on only when people are home, or in a specific room, the industrial fan needs to be energy efficient for this extra use. These motors can handle more heat than a normal motor meaning less heat waste is produced. If you think you need an industrial fan for your business area, chances are that you do! Make the choice today for comfort and health and consider an industrial fan purchase.

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

Oleg Cthetchel
Canadian Air Systems Engineer
Northern Industrial Co.
http://northernindustrialsupplycompany.com/products/industrialfan_blowers.html
http://northernindustrialsupplycompany.com/products/ventilators.html

Industrial Fan for Process Ventilation

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fan@cogeco.ca

nisco@primus.ca

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Inline Centrifugal Exhaust Fans & Blowers

Industrial Blowers and Fans — About Air Handing Fans

Since July 1, 2003, equipment manufactured for operation in potentially explosive environments has been required to comply with the European Directive 94/9/EC. This directive, commonly referred to as the ATEX Directive, applies to all countries in the European Union (EU) and the European Economic Area (EEA). The ATEX Directive is a collection of EU directives outlining equipment installed and operated in potentially explosive atmospheres. The ATEX directive coordinates various technical and legal conditions throughout Europe to ensure a high level of safety for the end-user by reducing the explosion risk through established design methods. The European Committee for Standardization (CEN) published EN 14986 as a standard specifically for the manufacture of fans for use in hazardous areas. This standard is a guide specifically for fan manufacturers to comply with the ATEX Directive.

Industrial Blowers & Fans – Air Handling Units

Air Handling Units (AHU) combine a fan (or several fans) with other components such as heating and/or cooling elements, filters, and dampers as a means to collectively condition the air in a building. AHU is a general term comprised of many specific types of air handlers including: Make-Up Air Units (MAU), Packaged Units (PU), Rooftop Units (RTU), and Energy Recovery Units (ERU). Air handlers range from very small, low CFM light-duty construction to very large, high CFM heavy-duty construction, and are used in many types of buildings that require air conditioning such as office buildings, hospitals, universities, schools, manufacturing facilities, and data centers. Typically, air passing through an AHU is clean and varies in temperature depending on the specific application. Energy consumption and noise are often important considerations when selecting a fan for an AHU. Plenum fans and DWDI fans are commonly found in these units, but are not used exclusively. To accommodate the various applications these units are used for, Canada Blower offers the most diverse and efficient fans in the industry to meet the need of any air handling unit.

Inline Exhaust Fans Centrifugal Blower Fans

Building elevator shafts require proper air moving equipment to provide smoke control in the event of a fire. Pressurization is used to prevent smoke from migrating through elevator shafts to other floors, similar to how fans are used to control smoke in stairwells. Today’s elevator pressurization systems are designed to allow elevators to be used by firefighting teams. However, some systems are designed for the evacuation of handicapped individuals. While small amounts of smoke in an elevator may be tolerated by firefighters, smoke in an elevator and its entry and exit paths is unacceptable. Canada Blower’s complete offering of smoke and heat exhaust fans are relied upon for elevator shaft exhaust/pressurization in emergency situations.

Buffalo Fans Blowers

Electrical bus systems are used for conveying large volumes of energy within power generation facilities. The efficiency of an electrical bus is a function of temperature. The cooler you are able to keep the bus the more efficient it will operate. Power plants utilize large electrical buses and Buffalo Blower provides fans for cooling these systems. Typically this involves clean air which is circulated through a closed loop system.

Industrial Buffalo Blower Fans Supplier

Air supply and filter houses provide the clean supply air for large scale paint booth applications. The supply air is conditioned and filtered to the precise temp and humidity for the given paint system. This supply air is sent to the main paint booths, curing ovens, electro polishing rooms and pre-treatment areas. Buffalo Blower offers a variety of efficient airfoil fans to meet the stringent requirements of any customer.

Industrial Blower Manufacturer & Suppliers

Emergency smoke exhaust systems are designed to remove smoke and heat from buildings in the event of a fire. These systems play a crucial role in increasing occupant safety and allowing rescue personnel to safely enter burning buildings. Canada Blower offers a full line of smoke and heat fans capable of withstanding a minimum temperature of 500°F for four hours or 1,000°F for 15 minutes. Our inline smoke and heat fans are also available in a vertical roof mount configuration featuring a discharge cap with butterfly dampers and an optional fusible link designed to stay open in the event of a fire.

Industrial Fans

Energy recovery systems have become a popular way to heat and cool homes as well as commercial buildings. Energy recovery applications typically use two fans that provide air through a heat exchanger that “treats” the air by heating or cooling it before it enters the building. Canada Blower’s plenum and forward curved fans are typically used for energy recovery applications and offer a wide range of performance and flexibility.

Inline Exhaust Centrifugal Fans

Generator rooms require a wide range of fans to optimize the performance of generators and other equipment. Exhaust fans are used to prevent heat buildup within the generator room, while supply fans are used to provide fresh air for combustion and efficient generator performance. Room size, space limitations, and mounting capabilities will determine the exact type of fan needed for each specific application. As a leading manufacturer of air moving equipment, Canada Blower offers numerous fan types for meeting any generator room specification.

For additional information please refer to http://canadablower.com

Susan Terlitski
Building Ventilation Engineer
Canada Blower Co.
canadablower@canadablower.com
http://canadablower.com/heat/index.html
http://canadablower.com/heatexchanger/index.html

Air Handling Ventilation Fans

canadablower@canadablower.com

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buffaloblowercom

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Industrial Blowers, Propeller Fans & Blower Fans

Industrial Blowers and Fans for Cooling

Industrial Blowers and Radial Blower Fans for Ventilation

Industrial Blowers & Fans Types

Versatility of Industrial Blowers and Fans

Industrial Fans & Blowers Efficiency

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

Industrial Fan for Process Ventilation

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fan@cogeco.ca

nisco@primus.ca

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Industrial Centrifugal Blowers & Centrifugal Inline Exhaust Fans

Canada Blower offers a complete line of centrifugal fan equipment, from small Baby Vent Sets capable of moving a few cubic feet per minute (CFM), to large, heavy-duty industrial mechanical draft fans with capacities to 1,000,000 CFM and with static pressures from 0″ Water Gauge (WG) to 150″ WG.

Centrifugal Fans & Blowers

Centrifugal ventilator has a number of blades mounted around the hub, which turns on a shaft that passes through the housing.

Blower Fan Suppliers

Canada Blower is a leading supplier of industrial and commercial fans, ventilators, blowers and accessories for various air-moving applications.

Industrial Blower Manufacturer

Canada Blower products include standard centrifugal fan and customized blowers designed to meet our customers’ requirements based on Canada Blower manufacturing standard.

Centrifugal Fans and Industrial Blowers

A centrifugal blower is a fan designed to move air or gases in a confined area. The centrifugal blower has a number of blades mounted around the hub, which turns on a shaft that passes through the housing. The gas enters the side of the fan wheel and by use of centrifugal force(hence the name) accelerates over the fan blades. A centrifugal blower is usually used in factories or large open places that need air flow.

Industrial Centrifugal Fans Applications

Over the years Canada Blower supplied centrifugal fans to a wide range of industries and applications including: combustion air supply, material handling, process ventilation, ovens and dryers, iron and steel industry, mine and tunnel ventilation, petro-chemical, power generation, marine and off-shore structures, pulp and paper, HVAC, paint/spray booths, fertilizer and various emission control applications. For the commercial HVAC market, Canada Blower offers general ventilation fans for institutional and retail buildings, schools, restaurants and hospitals. Special materials, construction, explosion-proof and spark-resistant design, variety of coatings and accessories are available to meet practically any application needs.

Industrial Blowers and Fans Services

Canada Blower fan repair, retrofit and service shop provides complete rebuilds, shaft repairs, blade liners, in-field balancing, vibration analyses, performance upgrade, increased fan capacity, all metallurgies, all type of fans repair, and emergency service on all sizes and designs.

Industrial Blower Fans

Canada Blower air moving products are best know for “industrial quality” assuring reliable performance, relentless dependability and longevity. A staff of specially trained engineers will design a dependable fan that exactly fits customers’ dimensional and performance requirements.

Canada Blower fans and lowers are sold and serviced by air moving experts that can evaluate your needs and provide best recommendations for your application.

Additional information can be found at the Canada Blower company web site http://canadablower.com/hvac/index.html.

Susan Terlitski
Air handling Systems Designer
Canada Blower
canadablower@canadablower.com
http://canadablower.com/news/index.html
http://canadablower.com/oem/index.html

Centrifugal Fan by Canada Blower

canadablower@canadablower.com

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Industrial Centrifugal Blower Fans & Axial Fans

Backward Inclined Blowers

Backward Inclined Fans – Simple flat blades, but backwardly inclined to match the velocity pattern of the air passing through the fan wheel, which results in high-efficiency operation. These fans are typically used in high-volume, relatively low-pressure, clean air applications.

Centrifugal Blower Fans

Airfoil Centrifugal Fans are used for a wide range of applications in many industries, hollow-bladed airfoil fans are designed, engineered and tested for use in airstreams where high efficiency and quiet operation are required. They are used extensively for continuous service at ambient and elevated temperatures in forced and induced draft applications in the metals, chemical, power generation, paper, rock products, glass, resource recovery, incineration and other industries throughout the world.

Backward Inclined Blower Fans

Backward Curved Fans – Efficiencies nearly as high as the airfoil design. However, single-thickness metal blades prevent the possibility of dust particle buildup inside the blade. These fans can be built with long-lasting erosion-resistant liners. The robust design allows high tip-speed operation, and therefore this fan is often used in high-pressure applications. This design frequently offers the best compromise for long life and high efficiency.

Radial Blade Blowers

Radial Blade Blowers – Flat blades oriented in a radial pattern. These rugged fans offer high pressure capability with average efficiency. They are often fitted with erosion-resistant liners to extend the rotor life. The housing design is compact to minimize the floor space requirement.

Forward Curve Blower Fans

Forward-Curved Radial Tip Fans – This rugged design is used in high-volume flow rate applications when the pressure requirement is rather high and erosion resistance is necessary. It offers medium range efficiencies. A common application is the dirty side of a baghouse or precipitator. The design is more compact than airfoil, backward curved or backward inclined fans.

Industrial Blowers

Paddle-Wheel Blowers – This is an open impeller design without shrouds. Although the efficiency is not high, this fan is well suited for applications with extremely high dust loading. It can even be offered with field-replaceable blade liners from ceramic tiles or tungsten-carbide. This fan may also be used in high-temperature applications.

Forward Curve Blowers

Forward-Curve Fans – This “squirrel cage” impeller generates the highest volume flow rate (for a given tip speed) of all the centrifugal fans. Therefore, it is often the smallest physical package available. It is commonly used in high-temperature furnaces.

Industrial Exhaust Fans

Industrial Exhausters – Relatively inexpensive, medium-duty, steeply inclined flat-bladed fan for exhausting gases, conveying chips, etc.

Pre-Engineered Blade Blower Fans

Pre-engineered Fans – are series of fans of varying blade shapes that are usually available in only standard sizes. Because they are pre-engineered these fans may be available with relatively short delivery times. Often, pre-engineered rotors with various blade shapes may be installed into a common housing. These are often available in a wide range of volume and pressure requirements to meet the needs of many applications.

Industrial Pressure Blowers

Pressure Blowers – High-pressure, low-volume blowers used in combustion air applications in furnaces or to provide “blow-off” air for clearing and / or drying applications.

High Pressure Blowers – Surgeless

Surgeless Blowers – High-pressure, low-volume blowers with a reduced tendency for “surging” even at severely reduced flowrates. This allows extreme turndown (low-flow) without significant pulsation.

The main types of Axial Flow Fans include:

Axial Fans – High Temperature

High-Temperature Axial Fans – High-volume fans designed to operate against low flow resistance in industrial convection furnaces. These are found in either single-direction or bi-directional designs. Extremely rugged, they are most often used in high-temperature furnace (up to 1800 degF) applications.

Tube Axial Fans

Tube Axial Fans – Cataloged high-volume low-pressure fan line with a wide range of available sizes. Suitable for temperatures up to 250 degF.

Vaneaxial Fans

Vaneaxial Fans – Axial flow fans with higher pressure capability due to the presence of static vanes.

Variable Pitch Axial fans

Variable Pitch Axial fans – Axial fans with manually adjustable blade angles. This allows operation over a much wider range of volume/pressure relationships. The blades are adjusted periodically to optimize efficiency by matching the blade pitch to the varying conditions for the application. (Often used in mining applications).

Variable Pitch on-the-fly Axial Fans

Variable Pitch on-the-fly Axial Fans – These are similar to “Variable Pitch Axial Fans” except these include an internal mechanism that allows the blade pitch to be adjusted while the fan rotor is in motion. These versatile fans offer high-efficiency operation at many different points of operation.

Variable Speed Fans

Variable Speed Fans – All of the fans described above can be used in conjunction with a variable speed driver. This might be an adjustable frequency AC controller, a DC motor and drive, a steam turbine driver, etc. Flow control by means of variable speed is typically smoother and more efficient than by means of damper control. Significant power savings (with reduced cost of operation) are possible if variable speed fan drives are used for applications that require reduced flow operation for a significant portion of the system operating life.

For additional information please refer to http://www.northernindustrialsupplycompany.com/burlington/request5.html

Oleg Tchetchel
Industrial Ventilating Designer
Northern Industrial Co.
http://www.northernindustrialsupplycompany.com/burlington/request7.html
http://www.northernindustrialsupplycompany.com/burlington/request2.html

Centrifugal Fans and Axial Fans by Northern Industrial Blower

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Industrial Pressure Blowers

Applications for Pressure Blowers include: combustion, air, fluid bed aeration, cooling, drying and many process system applications. It is also commonly used in pneumatic conveying systems.

Industrial Pressure Blowers & Radial Blade Blowers

It is also commonly used in pneumatic conveying systems. Industrial pressure blowers and high pressure radial fans are supplied in cast aluminum, cast iron, or all-welded construction to prevent flexing at high pressure. Available in direct drive arrangements 4 / 4V / 4H / 7 / 8 and belt drive arrangements 1 / 9 S / 9T / 9H. Capacities: to 10,000 CFM. Single stage pressure blowers develop up to 4 psi static pressure. Two stage pressure blowers and multistage pressure blowers are for higher pressure.

Single Stage Pressure Blowers

An extremely wide performance range is provided by 70 wheel /housing combinations. The High Pressure Blower is available in four arrangements and eight discharge positions to suit most every application. In addition to direct drive, the pressure blower is also available in belt drive.

High Pressure Blowers Operating Range

Operating Range of Design High Pressure Blowers can be summarized as:

Maximum CFM: 18,000
Maximum Static Pressure: 91″ wg
Maximum Temperature: 200°
Fan Sizes: 4″ to 14″

Industrial Pressure Blowers – Aluminum

DESIGN CAST ALUMINUM PRESSURE BLOWERS

Northern Fan Design aluminum pressure blowers utilize high-strength alloys to create strong, corrosion-free housings and wheels ideal for adverse industrial environments. Aluminum also stands up to sub-zero ambients without material deterioration. Since aluminum is non-magnetic and non-toxic, Buffalo’s pressure blowers are recommended for both electronic and food related applications. The non-sparking properties qualify Buffalo’s pressure blowers for AMCA Type B spark resistant rating.

Operating Range of Design Cat Aluminum Pressure Blowers is:

Maximum CFM: 4,000
Maximum Static Pressure: 20″ wg
Maximum Temperature: 200°
Fan Sizes: 8″ to 18-1/2″

Radial Blade Blowers – High Pressure

PA HIGH PRESSURE RADIAL FANS

To meet specific applications, Northern Fan Co. PB radial fans can be built with stainless steel or alloy construction. Split housings facilitate wheel removal without disturbing connecting ductwork. Integral inlet boxes, pre-spin inlet dampers and opposed-blade outlet dampers all control air flow. Belt guards and shaft coolers are also common options, in addition to the various housing and wheel liners. The Northern Fan engineers are eager to design and build the pressure fan that meets your exact requirements.

Radial Blade Blowers – High Pressure. Applications

Application for HPB High Pressure Radial Fans are:

Northern Fan Co. Pressure Air Fans are at work in as many diverse applications as they are in locations throughout the world. Clean air applications include combustion air, air drying primary air ejectors, and product cooling. This fan can handle pneumatic conveying systems. The HPB fan is ideal for corrosive exhaust, air pollution systems and chemical processing. By adding ceramic tile or chromium carbide wheel and housing liners, Northern Fan Co.’s PA fans easily handle abrasive materials. In particular, fans with ceramic tile liners are extremely effective in pulverized coal applications, handling up to 250 grains per cubic feet of air. For corrosive gases, a stainless steel wheel and housing is available, or a lower cost rubber-lined, mild steel housing will often fulfill the requirements.

Operating Range for HPB Radial Blowers:

Maximum CFM: 440,000
Maximum Static Pressure: 108″ wg
Maximum Temperature: 1000°
Fan Sizes: 20″ to 100″

Additional information can be found at the Northern Fan company web site http://www.northernindustrialsupplycompany.com/products/air_handling_units.html

Oleg Tchetchel
Canadian Engineer of Industrial Air Make-Up Units
Northern Fan Co.
nis@primus.ca
http://www.northernindustrialsupplycompany.com/products/heat_exchangers.html
http://www.northernindustrialsupplycompany.com/products/humidifiers.html

High Pressure Fans – Pressure Blowers

pressureblower@cogeco.ca

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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