MA-II-10 Environmental Barrier

 

Offers protection up to 10’ high doors

 

The three-speed motor offers high performance and reliability with an attractive design.

 

CBVS - Environmental Barier

 

Good for doors up to 14’ high, primary use
for Shipping / Receiving Doors

 

Compact design for light to medium industrial duty.

 

CBFC Environmental Barrier

 

CBFC Air Curtain offers protection for up to 20’ high doors

 

Heavy duty industrial construction with split cabinet construction; direct driven and belt driven models available.

 

CBED - 30’ Environmental Barrier

 

CBED provides protection for up to 30’ high doors

 

Super heavy-duty industrial design system, belt driven construction, motor out of air stream.

 

CBFS - 16’ Environmental Barrier

 

CBFS is used for up to 16’ high doors

 

Controls insects, dust and airborne contaminants.
Recommended for outdoor installation, for up to 16” high openings.
Used primarily for Shipping and Receiving Doors.

 

Typical applications for Canada Blower air-curtains include Commercial various entrances, loading doors, hotels, hospitals, stores, public facilities, and other commercial buildings, and other applications, such as Food service, where all aluminum, or all stainless steel air curtains are utilized.










The idea of having an invisible barrier across the doorway to enable unimpeded access yet effectively prevent temperature flow, dust, odours and insects to cross, is appealing in itself but add to this the cost-saving in reducing energy use and the idea becomes more compelling, especially as air curtains are relatively inexpensive items. 
   
  Appropriate for industrial applications -
 
  Keeping warm air out of insulated cold stores or refrigerated facilities is the Number 1 objective yet a mockery is made of this premise when freezer of chiller doors are left wide open and, in some cases, chocked open to facilitate the movement or storage of perishables.

Canada Blower Indsutrial Air Curtains with the following features:
 
- Industrial and commercial air curtains for up to 16 Feet door width, and up to 30 Feet door height;
- Conventional centrifugal and tangential laminar air flow designs;
- Heated and non-heated models available;
- Control panel options;
- Efficient for wind stop and insect control applications;

Self-generated pressure evolves from a non-circulatory type of air curtain as the jet induces ambient air into the stream. When the air curtain is installed on the outside of a cold room, the air spills back into the room and continues to do so until the pressure builds up to such a point that the air stream deflects to the outside.

The pressure-form-stack effect evolves when the cold air in the room is denser than the warmer outside air. The higher the ceiling, the higher the pressure becomes inside the cold room. The velocity of the air curtain should therefore be high enough to compensate for the outward pressure at the lower part of the cold room.

Wind pressures occur because of the conversion of the velocity pressure in the wind into static pressure. Of particular significance is the stability of the air curtain, which is directed by its outlet momentum. The curtain of air must be able to withstand pressure variations between the inside and the outside of the cold room. The outlet momentum should be sufficiently sustained and strong enough to stabilise the air at the floor. It is therefore essential to incorporate controls in the design of the air curtain to increase the strength of the velocity and ensure a stiff curtain of air and to decrease the velocity to prevent unnecessary heat and moisture transfer at the door.

In refrigeration applications, a high volume of turbulent air hitting the floor tens to form ice on the floor of freezers - this is not desirable or necessary so air flow needs to be adjusted so that it barely hits the floor. This can be accomplished by adjusting air louvers or fan speed to obtain the desired velocity. Drafts are eliminated by ensuring that air flow is vertical. The air curtain may be mounted on either the warm or cold side of the cooler with equal effectiveness. 

The volume of air flow varies according to temperature difference between internal and external air and air exchange is therefore caused by thermal temperature differences. Using known values for the indoor and outdoor temperature difference, the densities, pressure differences and ultimately the air flow through the opening can be calculated. 

Properly installed air curtains cut cold air loss and reduce humidity, thus reducing the load on refrigeration or air-conditioning plant and thereby saving energy by reducing compressor running time, maintenance, gas and recharging intervals. These ventilattor units are an alternative to fast-acting roller doors and PVC slat curtains, and can be situated above or to the side of industrial doorways to create a powerful seal across the opening, keeping cold air in while providing complete visibility and access. This means that forklift drivers don't have to get out of their cabs to open and close doors so that moving from one area to another is a lot easier and productive. Unlike plastic slat curtains, which quickly become opaque with use, an air curtain provides 100% visibility at all times. Units have been installed in loading bays, factories, hangars and production facilities, such as food processing and pharmaceuticals, where differential temperatures are encountered overseas. 

Canada Blower Co. is a well known designer and manufacturer of industrial and commercial air curatain systems and environmental air barriers ventilating.com fanblower.com highpressureblower.net industrialblowerfan.com industrialfanblower.net industrialfanblower.com pressureblower.net northernindustrialsupplycompany.com industrialpressureblower.com tenderall.com chicagoblowercanada.com cbblower.com buffaloblower.com buffalofan.com nis-co.com canadianblower.com olegsystems.com canadablower.com abbblower.com acmefan.net industrialblower.net fansandblowers.net americanblower.net barryfan.com cincinnatifan.net canadafans.com barryfan.net.

For special applications Canada Blower offer tangential air curtains to achieve high volume alminar air flow - to create permanent environmental air barriers.
Canada Blower Air curtains provide a controlled stream of air across a building entrance or doorway to separate interior atmosphere from exterior environment. Air curtain’s airstream prevents cold, hot, or humid outdoor air, as well as insects and dust, from infiltrating the inside the building. This is why Air Curtains are considered as the first line of defense for employee safety.

Although air curtains require power to run the blowers and heaters, Canada Blower Air Curtains save much more costs by reducing drive-thru time, window wind fume hazard, providing low-first cost and low total cost as well as additional energy savings in energy battle.

Canada Blower Air Curtain Comstruction typically an air curtain will incorporate double width blower, belt, or direct driven, heating / cooling coils, or a gas fired coil, electrical controls, such as door plunger switch, speed controller, disconnect switch, and others, and mounting accessories, such as mounting brakets for suspended, or verhead mount.

Design Consdierations: To properly design an air curtain application the airstream must hit the floor with enough velocity to create a stable split right at the doorway. Design criteria for selection of proper air curtain for a given application include height and width of the door opening, intended usage, required characteristics of the airflow, which are combination of velocity, volume, and uniformity and the proper balance between each.

Once an air curtain is activated, it creates a split which uses the internal pressure to resist infiltration of temperature, rain, wind, debris, insects, etc. among the conditioned indoors and unconditioned outdoors air.

Typical applications for Canada Blower air-curtains include Commercial various entrances, loading doors, hotels, hospitals, stores, public facilities, and other commercial buildings, and other applications, such as Food service, where all aluminum, or all stainless steel air curtains are utilized .

While Canada Blower air curtains have been commonly used for decades to separate environments in the workplace, perhaps now is the time safety professionals should consider them to help eliminate industrial/commercial doorway accidents as well as keep restaurant drive-thru employees safe from CO poisoning and wintertime temperature extremes.

Typical applications include various entrances, loading doors, hotels, hospitals, stores, public facilities, and other commercial buildings, and other applications.

ILG Canada Blower air curtains are supplied with optional easy mounting trim key.

Canadian Blower is pleased to introduce the Vaneaxial Fixed Pitch Fan as the newest addition to our family of products. For high-pressure ventilation, CB Vaneaxial Fixed Pitch Fans are ideal where axial flow and space is at a premium. This belt driven product line is available with multiple hub ratios to increase performance and selection flexibility. Our selection software makes it easy to select the most efficient fan for your application. Uses include heat, smoke and fume removal, process drying, comfort and process cooling and general ventilation.

Canada Blower Vaneaxial Fixed Pitch Fans are designed and constructed for high pressure ventilating and industrial process applications requiring the compactness of an axial fan.

FAN CONSTRUCTION FEATURES

• Cast aluminum wheel – airfoil blades provide highly efficient, quiet operation for clean-air applications.

• Heavy-gauge welded components – provide structural strength, durability, and minimal leakage.

• Bearings – selected to provide long service life... 50,000 hours average minimum L-10. External lubrication fittings are standard.

• Industrial finish – green industrial grade coating.

• Straightening vanes – aerodynamically designed vanes convert velocity pressure to static pressure for maximum efficiency.

• Flanged connections – Welded flanges with slotted holes.

• Lubrication – extended lubrication lines with external fittings provided on all belt-drive Vaneaxial Fixed Pitch Fans.

• Adjustable motor mount – positive screw adjustment for easy belt-tensioning.

• Shafting – straightened to close tolerance to minimize “run out” and ensure smooth operation.

• Balance –  all  wheels are precision-balanced prior to assembly. Fans with mounted motors and drives are checked at the specified running speed.

• Inner-tube construction – isolates bearings and drive from airstream. Removable end cover allows access to bearings and drive.

• Tapered hub with split taper bushing – for ease in wheel removal.