High Pressure Vaneaxial Compact Fans

Vaneaxial Ventilators

Sun, 8 Oct 2006 14:09:40 -0400

Vane Axial Fans
Vaneaxial and Tubeaxial fans are generally used in variable HVAC systems and in light industrial applications such as fume exhaust. Panel fans are used primarily for general unducted ventilation. Type VA/TA Fans are suited to HVAC & light Industrial Applications requiring compact In-Line configurations. All welded Heavy Gauge Carbon Steel and Alloy Materials, V-Belt or Direct Drive, Vertical & Horizontal Supports, Roof Curbs, Clamshell Access Doors, Wind band Dampers, and 450 F Construction is available for Paint Booth, Stack Exhaust, and Surface Cooling.

Features of Vaneaxial VA Fans:
Efficiencies to 70% using propellers with three to twelve adjustable pitch blades
Selections match propellers to readily available motors
High efficiency airfoil bladed wheel
Precision molded high-strength blades
Compact direct drive configuration
Rugged steel tubular construction
Horizontal or vertical installation

Axial Fans

Sun, 8 Oct 2006 14:06:51 -0400

Fans utilize power from a motor to generate a volumetric flow of air at a given pressure, and are considered low-pressure air pumps more often than not. A propeller converts torque (turning force) from the motor (typically permanent split capacitor AC induction motors or brushless DC) to increase static pressure across the fan rotor and to increase the kinetic energy of the air particles.

Fans are classified into propeller, tube axial and vane axial styles, and each type has different characteristics. Propeller fans consist of only a motor and propeller and therefore are the simplest. Tube axial are similar to propellers but has a venturi around the propeller to reduce the vortices. Vane axial fans are equipped with vanes that trail behind the propeller in the airflow to straighten the swirling flow.

High pressure direct driven vaneaxial VA fans

Sun, 8 Oct 2006 14:02:00 -0400

A true vane axial Type VA fan designed for use in a wide range of commercial or industrial applications.

High pressure efficiency permits the fan to be installed anywhere in the system; in any position. It can be used for either supply or exhaust by simply turning the entire fan unit to flow air in the desired direction.

Type VA fans are extremely compact and well suited to locations where space is limited. In many instances, these fans are mounted directly to the duct work.

As a result of very close tolerances and carefully matched vanes and rotor, the Type VA fan offers exceptional performance within its size range.

Small Direct Drive Vaneaxial Booster Fans

Sun, 8 Oct 2006 13:52:17 -0400

A newly designed high pressure small vaneaxial fan finally resolves the problem of boosting air flow in long ventilation ducts of today's large residential houses.

For a long time the efficient ventilation of remote rooms in the large houses could be done only with two independent air supply sources (like a furnace). Ventilating ductwork in contemporary large houses becomes so long and elaborated that even a high pressure furnace fan couldn't generate enough static pressure to blow through the whole length of such a duct. The existing low pressure booster duct fans, even though compact enough to be installed in-line in the house ventilation ductwork, still do not provide enough booster pressure / airflow. The usual solution to this problem was installation of two independent furnaces with different air ducts, which is rather expensive option.

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.

The other advantages of VA Series vaneaxial ventilators is their intrinsic spark-resistant construction because of all-aluminum construction; quiet operation of true vaneaxial design; lower energy consumption due to efficient wheel design.

Eight different sizes from 6" DIA to 10" DIA offer wide performance range for any ventilation duct design. Direct drive design ensures long live, maintenance-free operation. Explosion proof motors are available too, as well as sliding dampers, various mounting options, additional sound isolation.

For additional information please refer to http://www.canadianblower.com/blowers/index.html.

Oleg Tchetchel, Ph.D
Canadian Blower
http://www.canadianblower.com
http://www.canadianblower.com/fans/index.html