Industrial axial blowers, centrifugal and propeller fans, high temperature tubeaxial fans. Sales for roof and wall exhaust and supply fan blowers, radial blower fans, vaneaxial fan blowers. 
Up-blast power roof ventilators, fans and blowers

Up-Blast Power Roof Ventilators

Canada Blower PRV Power Roof ventilators provide clear evidence of the continued leadership of Canada Blower in the engineering development and manufacture of ventilating fan packages for industrial and commercial ventilation. CBC Company axial roof fans cover sizea ranging from 15" to 84" wheel diameters with capacities from 2000 CFM to 200,000 CFM.

Howden Buffalo Up-Blast Power Roof Ventilators

Canada Blower Buffalo Style V Sky-Vent Power Roof ventilators provide clear evidence of the continued leadership of Buffalo in the engineering development and manufacture of ventilating fan packages for industrial and commercial ventilation. Buffalo Forge Company incorporated BREEZOs design T, Design 53 Belt-Airs, Design 80, Design 65 and Design 50 NV fans, Type B fans, including LB, MB, HB pitched props, Types K and Type F fans Design T, AEROPROP design 53 and Design C, Type K, Type F fan components covering sizea ranging from 15" to 72" wheel diameters with capacities from 2200 CFM to 130,000 CFM.

Style V So-Low Canada Blower Sky-Vent Power Roof Ventilators is a low-silhouette, factory assembled package unit constructed to withstand hurricane force winds. It construction incorporates galvanized steel wind band, rain gutter, automatic dampers (gravity action) with damper bearings and damper stops, optional stack for true vertical discharge, gussets to fasten the wind band to the stack, streanlined die formed Venturi closely shrouding fan prop/wheel, heavy duty prop supplied in variety of designs, roof curb sheet with flanged edges, totally enclosed air over high efficiency motors, special coatings for corrosion and moisture resistance. This type of power roof ventilator is available in Tilt-Up construction, which provides access to drives and motors direct from the roof.

Canada Blower AF Type Style V Sky-Vent Power Roof Ventilators utilize vaneaxial and tubeaxial fans to which a separate damper head and curb sheet are attched. Their construction incorporates flanged wind band, or shroud with rain gutter, supplied with integrated gravity automatic dampers pivoted in bushing bearings, dampers stops and flange, tube-axial, or vane-axial fan stack, available in direct drive - arrangement 4, or belt drive with belt tension adjustment arrangement 9 configuartion, motor cover, or belt gurad, gussets, heavy duty fan wheel, available with a variety of motors, corrosion an dmoisture resistant finishes.

FRP Construction - Fiber Reinforced Polyester corrosion resistant construction is available for Canada Blower up-blast power roof ventilators along with protective coatings for corrosive exhaust fumes or atmosphere including synthetic vinyl plastic and a cathalytic epoxy coatings.

Corrosion resistant construction and chemical duty construction: for corrosive environment Canada Blower wall fans are avaialble in 304 SS, 316 SS, or 316 L stainless steel construction.

Emergency Duty Purge Canada Blower Up-Blast Ventilators incorporate elements of sealed and high-temp. consturuction for emergency fume and smoke exhaust.

PRV Power Roof Ventilators is a low-silhouette, factory assembled package fan unit constructed to withstand hurricane force winds. It construction incorporates galvanized steel wind band, rain gutter, automatic dampers (gravity action) with damper bearings and damper stops, optional stack for true vertical discharge, gussets to fasten the wind band to the stack, streanlined die formed Venturi closely shrouding fan propeller / wheel, heavy duty prop supplied in variety of designs, roof curb sheet with flanged edges, totally enclosed air over high efficiency motors, special coatings for corrosion and moisture resistance. This type of power roof ventilator is available in Tilt-Up construction, which provides access to drives and motors direct from the roof.

CBC AF Type Power Roof Ventilators utilize vaneaxial and tubeaxial fans to which a separate damper head and curb sheet are attched. Their construction incorporates flanged wind band, or shroud with rain gutter, supplied with integrated gravity automatic dampers pivoted in bushing bearings, dampers stops and flange, tube axial, or vane axial fan stack, available in direct drive - arrangement 4, or belt drive with belt tension adjustment arrangement 9 configuartion, motor cover, or belt gurad, gussets, heavy duty fan wheel, available with a variety of motors, corrosion an dmoisture resistant finishes.

FRP Construction - Fiber Reinforced Polyester corrosion resistant construction is available for all up-blast power roof ventilators along with protective coatings for corrosive exhaust fumes or atmosphere including synthetic vinyl plastic and a cathalytic epoxy coatings.

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.

Emergency Duty Purge Up-Blast Ventilators incorporate elements of sealed and high-temp. consturuction for emergency fume and smoke exhaust.











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Ventilation system is the path through which air is pushed or pulled. Since it can be any combination of ducts, heat exchangers, filters, etc., through which air flows, a system can range in complexity. The system can be as simple as exhausting air through an opening in the wall of a building, or as involved as a multi-zoned system with varying flows and densities. The effects of the system design on the actual performance capability of a fan represent separate and equally important considerations.

Fans are typically tested and rated in prescribed test configurations defined by the Air Movement and Control Association. This is done to ensure standardized procedures and ratings so that system designers can make realistic choices among various manufacturers. Beyond the routine system resistance calculations, the location of some common components and their proximity to he fan inlet or outlet can create additional immeasurable losses commonly called System Efect. These losses, if not eliminated or minimized, will necessitate fan speed and horsepower increases to compensate for the performance deficiencies.

In the typical process of system design, the performance requirements are calculated and then used to select the appropriate fan. However, in many cases the effects of the relationship between the system components and the fan are not considered in the calculation or selection process. For instance, the resistance of a given size elbow at a given flow can be easily determined using the equivalent length calculation method. However, if that elbow is located at the fan inlet or outlet, further immeasurable losses will be imposed in addition to the simple loss through the elbow itself. Most importantly, these losses cannot be measured or even detected with field instruments because they are, in fact, a destruction of the fan performance characteristics. Standardized testing and rating methods for fans have been established by the Air Movement and Control Association, (AMCA). The test methods are described in AMCA Standard 210, titled Test Code for Air Moving Devices. Specifying fan equipment tested and rated in strict accordance with AMCA Standard 210 is the best way to ensure accurate fan performance. However, the system effects that alter or limit the ultimate performance remain the most frequent causes of field performance problems. The four most common causes of system-induced performance deficiencies:

- Eccentric flow into the fan inlet.
- Spinning flow into the fan inlet.
- Improper ductwork at the fan outlet.
- Obstructions at the fan inlet or outlet.

Fans perform correctly when air flows straight into the inlet. Air should be drawn into the fan inlet with an evenly distributed velocity profile. If the air is not drawn into the fan inlet evenly, performance deficiencies will result from the combined effects of turbulence and uneven air distribution. When the system attempts to change the direction of flow, the air hugs the outside of the inlet elbow entering the fan. This causes uneven, turbulent airflow into the fan.

 Industrial high temperature oven circulating fan and high temperature exhaust ventilators. Sales of centrifugal and axial super high temperature plug fans and air kits. Replacement high temperature fan and blower wheel blades.

Heavy duty and custom built Canadian Blower - Chicago Blower fans; Buffalo Blower - New York industrial ventilators; air handling units; high pressure blowers - centrifugal and axial fan ventilators.