Industrial Centrifugal Blower – Page 2 – Canada Fans Industrial Blowers & Fans

Vaneaxial Fans

Canada Fans Vaneaxial Fans for variable volume air handling applications utilize adjustable or controllable pitch high efficiency aerofoil aluminum axial wheels to provide optimum performance. CBC variable pitch vaneaxial fans have an internal blade pitch adjustment, which allows to bring variable air volume capability for air conditioning, heating and ventilating applications.

Canada Fans Vaneaxial Fans features include:

• Vary volume and pressure by manually resetting blade angle
• Stable air flow over entire performance range
• Compact direct drive configuration
• Horizontal or vertical installation
• High Efficiency airfoil bladed wheel
• Efficiencies over 80%
• Rugged industrial strength construction
• AMCA Certified for air and sound performance

Vaneaxial Adjustable Pitch Fans

Canada Fans Vaneaxial Adjustable Pitch Fans are used in applications where demands vary with system or seasonal change. Blade pitch is manually set to increase or decrease performance. Blades are easily adjustable externally at the hub. Available in compact direct drive models.

Spray Booth Design Canada Fans Vaneaxial Fans

Spray Booth Design Canada Fans Vaneaxial Fans are available in standard belt drive arrangement 9. These fans are designed for use in spraybooth installations, or in a variety of applications where requirements make it necessary to clean the fan periodically. Standard accessories include: inlet / outlet cones, inlet bell, screensfor fan, cone, or bell; belt guard, weather proof motor and drive cover, spark resitant construction with aluminum wheels, or steel wheels with bronze tipped blades; support legs, suspension clips, shaft seals are also available as standard options.

Spark Resistant X-proof construction on Buffalo Fan tubeaxial and vaneaxial fans is available in all aluminum airstream (AMCA A) construction; aluminum wheel (AMCA B) construction; and steel wheel with bronze tipped blades and shaft retainer (AMCA C) construction.

Clamshell Design

Canada Fans Vaneaxial Fans are used primarily in applications where ready access to the interior of the fan is desired. The entire bearing assembly can be removed quickly and easily, without removing the fan from the stack. Heavy duty pillow block anti-friction bearings with split inner cylinder are standard. Clamshell design vaneaxial fans are available with steel wheels and aluminum wheels.

High temperature construction on Canada Fans vaneaxial fans can be furnished with optional high temperature construction for oven exhaust, or combusting gases exhaust applications.

Corrosion resistant construction and chemical duty construction on Canada Fans ventilators are available as well. For corrosive environment all Canada Fans vaneaxial fans are available in FRP construction, as well as in 304 SS, 316 SS, or 316 L stainless steel construction. Special coatings are optional and selection is made based on the application.

Available Accessories and Options on Canada Fans vaneaxial fans are:

• Streamlined spun inlet bells
• Wire guard screens
• Horizontal mounting lugs
• Companion angle rings
• Spool piece
• Vibration monitor switch
• Inlet or outlet cones
• Mounting feet
• Vertical mounting lugs
• Access door in cone
• Casing extension

Additional information can be found at the Canada Fans company web site http://northernindustrialsupplycompany.com/products/air_handling_units.html

Oleg Cthetchel
Industrial Ventilation Systems Designer
Northern Fan Co.
nis@primus.ca
http://northernindustrialsupplycompany.com/index.html
http://northernindustrialsupplycompany.com/products/index.html

Vaneaxial Fans Blowers

nis@primus.ca

Oleg Tchetchel

ventilator, fan, blower, axial, tubeaxial, vaneaxial, duct, adjustable pitch, Chicago, New York

buffalofan@buffalofan.com

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Industrial Building Ventilation

Based on the objectives and funds available, one can now consider different alternatives for industrial building ventilation and select the best method to use in calculating air volume requirements. A description of these methods follows. This is a time-honored approach to a determination of air volume requirements. It is based on the theory that a complete change of air in a room or building should be made at a certain time frequency. The rate selected is frequently an arbitrary decision. It may be based on experience with similar installations or may be established by a health or safety code. Many fan manufacturers have published charts that show recommended rates of air change for typical installations. Although the rate of air change method of calculating air volume has been used for many years, Buffalo Fan engineers have found it unsatisfactory except in relatively small buildings or rooms. For jobs that involve personnel comfort. this method is not recommended if the building is over 50,000 cubic feet in content or more than l00′ in length.

Considerations for Building Ventilation

The volume of air required to operate a ventilating and cooling system is a very fundamental requirement. Before air volume is estimated or calculated, careful consideration should be given to the following factors. Be sure that the decision you make will accomplish the most important objectives or will overcome the most important problems. This should be the overriding consideration in the selection of a system of ventilation. Availability of money to finance the system is a factor that must be considered early in the planning stage. The funds available will affect the objectives you set and will influence the system of ventilation selected to meet the objectives.

CFM per square foot of floor area method

CFM per square foot of floor area method: this method of calculation is a modern adaptation of the rate of air change formula. Total air volume (cubic feet per minute) is determined by multiplying the total square feet of floor area by an arbitrary CFM per square foot figure. The figure selected may be as low as 2 CFM or as high as 12 CFM per square foot. Four CFM per square foot has been recommended as a minimum for summer ventilation of large assembly type operations. This method of calculation, like the rate of air change method, is likely to produce unsatisfactory results in many cases. Failure to control air distribution and air velocity can be a major weakness in the whole concept. Selection of a CFM per square foot figure should be based on experience and a proven method of air distribution.

Rate of air velocity method

Rate of air velocity method: This method of calculating air volume needed for a system is highly recommended by American Coolair. A breeze conditioning system can be highly effective in providing personnel comfort in hot weather if the recommendations outlined below are observed. It has been determined from field experience that an average air velocity of 150 feet per minute (FPM) to 200 FPM is usually sufficient for personnel cooling under summertime conditions. The CFM required to do the job is calculated by multiplying the cross section of an area through which the air is to move by the desired velocity. This is expressed in the following formula.

Factors Affecting Average Air Velocity

As building size increases, there are factors that will affect the average air velocity through the cross section of the building. The longer the building, the greater the amount of air leakage from windows, doors, elevator shafts, etc. To offset this air leakage, air velocity should be increased. This is done by relating the calculated velocity to the length of the building. The results will provide an effective velocity of approximately 150 ft./min.

Industrial Ventilators

In some buildings. it is not possible or practical to install a complete ventilation system. In such situations, zone cooling may be effectively used. The problem is similar to a spot cooling application, but usually involves a relatively larger area. Effective zone cooling may be accomplished by use of air circulators. See Air circulation below. A very satisfactory zone cooling method is the use of supply-type PRVs to flood the problem area with fresh, cooler air. The adjacent drawing and zone cooling table illustrate the capacity of several American Coolair PRV models to effectively cool an area. The figures are based on discharge of air approximately l5 feet above floor level.

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

Susan Terlitski
Air Handling Units Engineer
Canada Blower
canadablower@canadablower.com
http://canadablower.com/hvac/index.html
http://canadablower.com/oem/index.html

Adequate Buildings Ventilation

canadablower@canadablower.com

ventilation fan,ventilating fan,building ventilation,building ventilating,ventilator,fan,blower,roof fan,wall fan,roof ventilator, wall ventilator

buffaloblowercom

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Vaneaxial Fans

Canada Fans tubeaxial fans, vaneaxial fans and wall propeller fans are found throughout the world operating in industrial processes where performance, reliability and maintainability are of paramount importance. Ranging in diameter from 15 inches to over 84 inches, and with a variety of impeller designs, control systems and layout options, they form a comprehensive series of axial fans to satisfy virtually all industrial applications. The majority of Canada Fans fans can be grouped into four broad categories: with fixed pitch props, with variable pitch props and with controlled pitch props. Canada Fans fans are capable of moving from a few hundred cubic feet per minute, to heavy duty adjustable pitch props with capacities up to 900,000 CFM and with static pressures from 0 ” Water Gauge (WG) to 20″ ” WG.

Heavy Duty Axial Fans

Canada Fans Heavy Duty Axial fans are available with adjustable pitch blades are capable of more air delivery for the same horsepower. Efficiencies exceeding 70% are common. The primary reason for increased efficiency is Canada Fans’s unique blade design. The entire length of the blade surface generates air flow, not just the tip alone. The air flow is uniform all along the blade.

Axial Flow Fans

Canada Fans axial flow fans are best buy for many industrial air moving jobs. Generally, an axial costs considerable less than a quality centrifugal fan delivering the same volume and pressure. They cost less to install since they are lighter, requiring minimum structural support. They can be duct mounted, taking up little space. Direct drive models mean faster start-up and the abscence of V-belt drive and fan bearings lowers maintenance costs.

Vaneaxial Fans with Adjustable & Controllable Pitch

Adjustable and Controllable Pitch Vaneaxial Fans feature an adjustable pitch blade wheel that permits matching your pressure/volume requirements exactly, and lets you make on-the-job adjustments to compensate for system changes.

Tubeaxial Fans

Canada Fans Tubeaxial Fans have fixed blade wheels in capacities up to 100,000 cfm and to 5″ total pressure.

A new high pressure (up to 1.5″ WG) small vaneaxial Series VA fan is an ideal booster fan for prolonged ducts. Unlike inline centrifugal ventilator, that also generates rather high pressure, the air comes out not from a peripheral outlet ring area, but distributes evenly across its outlet opening like in true axial blowers.

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

Susan Terlitski
Building Ventilation Designer
Canada Fans Co.
canadablower@canadablower.com
http://canadablower.com/ahu/index.html
http://canadablower.com/hvac/index.html

Axial Fan from Canada Fans

canadablower@canadablower.com

axial,ventilator,fan,blower,inline,tubeaxial.vaneaxial,air,industrial,duct,propeller,panel,exhaust,supply,wall,roof

buffaloblower@buffaloblower.com

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Mixed Flow Fans

Mix flow fans combine characteristics of both axial and centrifugal fans, and in the Canada Fan design the impeller resembles a fixed pitch axial fan. Canada Fan has two ranges of mixed flow fan: one heavy duty, ideally suited for handling dust-laden gases, and a compact range that gives higher pressure rises than can be obtained from similar sized axial fans.

Heavy Duty Mixed Flow Fans

Canada Fan heavy-duty mix-flow fans are extremely robust, with plate blades that are ideal for handling dust-laden gases at elevated temperatures. Though a mixed flow fan is not as efficient as other types and the operating range is more limited, fan performance is less degraded by erosion or corrosion. Should repairs be needed the blades are easily welded. Heavy duty mixed flow fans are available with flows from 200 to 1000 m3/s and pressure rises up to 8 kPa.

Compact Mixed Flow Fans

Canada Fan in New York compact mixed flow fan is a fully ducted, in-line machine that has a non-overloading power characteristic. It is capable of operating throughout its pressure / volume curve without stalling, even at zero flow. This fan is ideally suited to applications where space is limited and, for example, is commonly used for ventilation on offshore oil platforms. Its robust design maximises reliability and, with anti-spark features, it is suitable in zone 1 hazardous areas. Belt and motor drive options are available. The range can produce flows up to 80m3/s at pressures up to 3 kPa.

Industrial Fans

For applications ranging from the latest high-speed locomotives to industrial cleaning vehicles, Canada Fan can design a fan to satisfy OEM cooling, ventilation and other air movement needs. Through concept engineering, prototype and production, we provide a complete service for OEM air movement needs. Buffalo Fan (New York) OEM experience spans a wide range of applications from custom-designed, heavy-duty fans for use in locomotives and off-highway vehicles to standardised, light duty commercial air handling fans.

Axial Fans

OEM axial fans are available for for traction motor cooling, inverter cabinet cooling, dynamic braking grid cooling, inertial filter exhaust, alternator cooling, generator cooling, radiator cooling and cab ventilation. Canada Fan have low-maintenance, high-reliability designs for applications where shock and vibration are problematic. Corrosion-resistant coatings and low noise compact designs are avilable too.

Canada Fan have quality assurance and performance testing to ensure your OEM fan will perform in the toughest working environments. Finite element analysis (FEA), vibration and shock testing, accelerated life cycle testing and sound testing can be provided too. Whatever are tough OEM requirements, Buffalo Blower (New York) has the experience and expertise to meet those needs.

Additional information can be found at the Canada Industrial Fans web site http://northernindustrialsupplycompany.com/products/ventilators.html

Oleg Cthetchel
Air Process Systems Engineer
airknife@cogeco.ca
Northern Fan Co.
http://northernindustrialsupplycompany.com
http://northernindustrialsupplycompany.com/burlington/request6.html

Industrial Mixflow Fan

airknife@cogeco.ca

mix flow,mixed flow,fan,blower,ventilator,mix-flow,mixflow,axial,vaneaxial,tubeaxial,inline,industrial,OEM,duct,adjustable pitch,variable pitch

buffaloblower

kuzmanesto

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Wall Exhaust Fans

An exhaust fan is a mechanical ventilation device that helps to draw out stale and impure air from your home and bring in fresh air, thereby improving the quality of indoor air. Exhaust fans are typically ducted to the exteriors of your house, through which bad indoor air can effectively be removed from your living space.

Types of Wall Exhaust Fans

Exhaust fans are classified into various types, mainly depending on the type of mount and the location where you need to install the fans. The different types are:

Ceiling Mounted Exhaust Fans: As the name suggests, ceiling exhaust fans are those which are installed in the ceiling. Such fans expel stale air from your home upwards through the roof. The fan is connected to ducting, which is exhausted outside the home via an external vent, like a roof cap or soffit exhaust vent.
Inline Exhaust Fans: Unlike ceiling exhaust fans that are installed directly into the ceiling, inline exhaust fans are typically mounted in-between ducting, hence the name inline fan. For instance, if you wanted to ventilate an area that did not have clearance or space for a ceiling mount fan, you would make use of inline exhaust fans to ventilate such areas. The exhaust fan would be placed in between the ductwork and the stale air would travel through the ducts and ultimately be expelled from your home. Since inline fans are not mounted directly to the ceiling, they are very quiet. When installing an inline fan, to reduce noise, we recommend using an insulated flex duct that is at least eight feet long from the intake port on the ceiling to the inline fan.

Inline Exhaust Fans

Inline exhaust fans are ideal for exhausting areas or rooms where you cannot, or do not wish to install the exhaust fan directly. Since these types of exhaust fans are mounted in remote areas, they are also referred to as remote mounted exhaust fans. Inline exhaust fans can either be single-port (exhausting from a single area) or multi-port (exhausting from multiple areas).

Wall Mounted Exhaust Fans

Wall Mounted Exhaust Fans: These exhaust fans are installed on walls. Since they are installed on exterior walls of the home and not on interior walls, the stale air has a direct route to the outside of your home and thus no duct work is required in installing these exhaust fans.

Combination Exhaust Fans

Combination Exhaust Fans: Exhaust fans are also available as combination units. You have the choice of a fan-light combination where the exhaust fan provides illumination as well, or heat-fan-light combination wherein you get a heater, light and ventilating fan all in a single device.

Exterior Remote Mounted Exhaust Fans

Exterior Remote Mounted Exhaust Fans: While most other exhaust fans are installed inside your home and push stale air out, exterior remote mounted fans are installed outside your home and pull out stale indoor air instead of pushing it out. The main benefit of these exhaust fans is that regardless of however noisy they are, most of the noise remains outside your home.

Kitchen Range Exhaust Fans

Kitchen Range Exhaust Fans: These fans are mounted inside the range hood over your kitchen stove. Such fans not only help to rid your kitchen of stale air but also help to expel bad odors and reduce moisture levels in your cooking area.

Exhaust Fans for Complete Ventilation

These several types of exhaust fans can be used for complete ventilation of your building including intermittent local ventilation for baths, kitchens, dryer rooms; continuous whole building ventilation, and for exhausting hard-to-air spaces such as crawl spaces, attics, and basements.

Effective Ventilation Using Exhaust Fans

Exhaust fans are very effective at ventilating your home and other living spaces. Without proper ventilation, the air inside your home can get filled with harmful contaminants and disease causing pathogens.

Pollutants such as pesticides, harmful gases, smoke, pet dander, lead, asbestos, dust mites, paint fumes, grease etc get released into indoor air due to daily activities such as cooking, smoking, burning fuel, bathing, renovating etc. In addition to these pollutants, activities such as bathing, cooking, and washing also release excess moisture in the air and make indoor air extremely humid. If not ventilated adequately, these added pollutants and increased moisture levels can decrease the quality of indoor air greatly, thereby leading to various problems such as:

Problems Associated with Poor Ventilation

Health problems including asthma, allergies, nose bleeds, skin rashes, headaches, nausea, and other breathing disorders. In fact, according to the Environmental Protection Agency, a large percentage of the over 20 million annual asthma cases in the US alone can be attributed to bad indoor air quality.

Split, warped and rotted furniture due to excess humidity.
Cracked and peeling paint on the walls.
Formation of fungus, mold spores, and mildew, which in turn lead to severe health problems.
Thus, by using exhaust fans to ventilate your building efficiently and completely, thereby improving indoor air quality, you can avoid of all these problems.

Exhaust Fan Sizing

When sizing an exhaust fan that does not open directly to the outside but is ducted, it is important to ensure that the exhaust fan has the capability to move stale air throughout the duct and ultimately to the outside. Here, we first need to understand what static pressure and equivalent duct length is.

How Exhaust Fans Work

Inside every duct, there is a constant pressure being exerted at any point from all directions. When an exhaust fan moves air through the duct, the air counters resistance from this pressure which is known as static pressure. Thus, an exhaust fan has to have the ability to overcome the static pressure in a duct so as to effectively duct stale air to the outside of your home. This can be done by calculating the equivalent duct length of any duct.

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

Susan Terlitski
Canadian Process Air Systems Designer
Canada Blower
http://canadablower.com/hvac/index.html
http://canadablower.com/blowers/index.html

Ventilation by Exhaust Fans

ventilator fan blower fire smoke positive pressure electric gasoline explosion proof propeller industrial ventilation ventilating high volume air

canadablower@canadablower.com

ventilator,fan,blower,fire,smoke,positive,pressure,electric,gasoline,explosion,proof,propeller,industrial,ventilation,ventilating,high,volume,air

http://www.nisco.net/tchetchel.gif

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Industrial Exhaust Fans

The practical designs of modern homes are more focused on energy conservation. Making a home practically air-tight reduces heating requirements thus saving on electricity costs. This may be a great way to save money and help the environment, but it also leads to poor air circulation inside the house. Poor air quality can lead to a variety of cardiovascular diseases, ruined paint and damaged furniture which is why it is important to have good air circulation inside the home. The best way to do this is to install ventilation exhaust fans.

Exhaust Fan Systems

There are many different types of exhaust systems and getting an idea of how each one works will give you an idea of what type will be the best for your home. Different sized homes will have different ventilation requirements. Larger homes will require a variety of ventilation fans to keep the air from getting stale.

Ventilator Fans

The most common types of ventilation air purifying fans are wall mounted, ceiling mounted, inline fans, combination, exterior remote mounted and kitchen range exhaust fans. It is best to have ducting installed in areas where a visible fan would not blend in well. Areas like the living room, dining room, den and bedrooms would be good places to have ducting installed. Stale air runs through the ducting and exits the house via an exterior fan that expels the air outside, or busing using inline fans that are contained inside the actual ducting.

Wall & Roof Exhaust Fans

Kitchens, attics, laundry areas, bathrooms, garage and storage areas can be installed with either ceiling mounted or wall mounted exhaust fans if the area is situated beside an exterior wall.

Ventilator Exhaust Fans for the Home

It is important that all the areas inside a home need to have air circulation so that pollutants, pathogens or even humidity does not accumulate and lead to costly repairs or health problems. Be sure to select ventilation exhaust fans that are suitable for each area of the home.

For more information about proper building ventilation please visit the ABB Blower company web site http://www.fanblower.com/motor_cooling_fan.htm

Susann Terlitski
Designer of Industrial Air Handling Units
Fan and Blower Co.
abbblower@abbblower.com
http://www.fanblower.com/axial_flow_fan.htm
http://www.fanblower.com/inline_fan.htm

Exhaust Fans

air handling unit industrial airhandler AHU conditioner commercial ventilator fan blower building ventilation ventilating cooling heating circulation circulating roof top supply

abbblower@abbblower.com

fan,blower,ventilator,high,temperature,pressure,industrial,super,transfer,air,gas,positive,negative,heavy,duty,capacity,process

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