Industrial Blowers differ from Axial Flow Fans in the way they move the air. An Industrial Blower or Centrifugal Blower typically has one of seven types of wheels that draws the air into the inlet of the blower housing while an Axial Flow Fan or Industrial Axial Fan uses a propeller to draw the air into it. The air in and industrial or centrifugal blower is drawn through the wheel, and discharged at 90 degrees out through the discharge of the housing. An axial flow fan discharges it in the same axial direction. Fans are air moving devices with propellers while blowers are those with a wheel.
Many blowers fall under the classifications of Industrial Blowers, Industrial Cooling Fans, Industrial Exhaust Fan, Industrial Fan Blower, Industrial Fans and Industrial Ventilation Fans. No matter what you call them, they are all about the same. There main difference is, generally, the application they are used for.
In this section we will cover Industrial Blowers. For information about Axial Flow Fans or Industrial Axial Flow Fans, see Axial Fans.
To make the proper industrial blower selection, you must consider the following conditions the blower will be subjected to:
1. What is the airflow that will be required?
This is rated in cubic feet of air per minute (CFM) or in metric
equivalent, it is rated in cubic meters per hour (M3/Hr).
2. What is the static pressure through the complete system?
This is rated in static pressure water gauge (SPWG) or in metric
equivalent, it is rated in Pascal’s (Pa). SPWG
or Pa is the resistance to flow, or friction, caused by the air
moving through a pipe or duct. Be sure to include losses through filters, dampers,
etc.
NOTE: If the static pressure on the inlet side of the
blower will exceed 15” SPWG, a correction for suction pressure (Rarefication) should be made. For a definition
of rarefication and a suction pressure correction chart, see pages 6 and 7 of our Model HP-Series II catalog.
3. What is the ambient air temperature outside the industrial blower?
4. What will be the airflow conditions through the blower?
5. What is the altitude the blower will be operating at?
6. Is anything going through the blower that could be explosive or flammable?
7. Will the general location the blower will be operating in contain any type of explosive or flammable material or liquid?
8. If the industrial blower will be used to convey material, answer the following:
Most Industrial Blowers can be used for any of the above parameters except, if conveying material, a blower with a forward curve (squirrel cage) wheel is not suitable. The best centrifugal wheel type for conveying material is a radial wheel or an open radial wheel. If the material you will be conveying is log and stringy, like paper trim or fibers, only an open radial wheel should be used. The best models to use, for conveying material through the fan, are Models PB, SPB or PBS Pressure Blowers and Model RBE Radial Blade Exhauster. Models HDBI (Heavy Duty Backward Inclined Blowers) and HDAF (Heavy Duty Airfoil Blowers) are also used in many dust collector applications where the blower is on the clean side of the dust collector.
If the industrial blower will be used to create suction, pressurization, cooling, combustion air, forced ventilation or general ventilation, then only the first seven conditions above need to be considered. After the first seven conditions are known, the blower selection will be based on the type of blower that is best suited by performance, design and features that best meet those conditions.
Cincinnati Fan does not manufacture any consumer or residential type blowers. But,we do manufacture 14 models of Industrial Blowers that are designed and constructed as industrial type. We manufacture centrifugal blowers in the ¼ to 125 horsepower range, with airflow capacities from 50 to 51,900 CFM and static pressures from 1/8” to 78” SPWG.
While a list of all the applications our Industrial Blowers are used for would be extremely long, the most common include:
The benefits of Cincinnati Fan Industrial Blowers are:
The design steps, listed previously, are critical for the proper selection and construction of your industrial blower. We have over 170 experienced sales engineers across the U.S.A. and Canada ready to assist you in making the proper blower selection. Call our sales office for your area. They most likely have already sold some blowers for your type of application.
We are "The OEM and Industrial Air Handling Specialists" Let us prove it to you.