Industrial Centrifugal Process Fans
                     Industrial Centrifugal Process Fans
Neel Rao
Writes on industrial fan manufacturers & Reitzindia
 industrial fan manufacturers.
Industrial centrifugal process fans are one of the most efficient fans on the market 
today. It is a device with rotating blades, which move and circulate the current of air. 
The impeller pulls the air inside the blower and then the propeller pushes it out at a 
90° angle.  
Industrial Centrifugal Fans Applications
These industrial centrifugal fans provide air for industrial process requirements. The 
primary function of industrial centrifugal fans is to provide process relief in industrial 
units by enabling the movement of a large flow of air. These fans are specifically 
designed and built to handle high or low temperatures, acidic fumes, corrosive 
gases, and different types of gases in any process plant. These fans have applications 
in many industries to provide cost-effective and optimal solutions including cement, 
mine, iron & steel, chemical, paper and pulp, textile, food, power plant, glass 
industry, etc.
Common Types Of Rotors Used In Industrial Process Fans
The most important factors of designing a centrifugal fan are the speed, width, and 
diameter of the rotor or wheel. Generally, there are three types of rotors that are 
commonly used in industrial centrifugal fans: forward curve, backward curve, and 
radial vane.  
The forward curve vane types are found in low-pressure applications. It consists of 
many vanes of a small area that are curved in the direction of rotation. The 
advantages of these types of fans are: They can move large air volumes against 
relatively low pressure, they have relatively small size and they have low noise levels. 
In backward-curved vane fans, the vanes are inclined away from the direction of 
rotation. To do the same work as the forward curved types, these fans must run at 
higher speeds resulting in noisier operation. These fans have the capacity to operate 
at higher pressures. Their advantages are: Suitable for forced draft services, suitable 
when system behaviour at high airflow is uncertain, flat-bladed fans are more 
robust, curved bladed fans are more efficient, thin air-foil bladed fans are most 
efficient and can operate with changing static pressure. They are the most efficient 
type of centrifugal fan. The forward and backward inclined vane fans are frequently 
used in HVAC, industrial, clean air supply, and extraction applications.
In the centrifugal fan of radial vane type the wheel is usually narrow in proportion to 
its diameter and the vanes of this type are of greater depth. It has the capacity to 
operate at very high velocity and pressure. This type of fan is ideal for conveying 
dust and dirt, exhausting, and for forced draft applications. The advantages of radial 
vane-type fans are: High durability, simple designs, suitable for high temperatures 
and high static pressure, can operate at low air flows, and have large running 
clearances. They are frequently used in industrial, mining, petrochemical, dust 
extraction, and high-pressure applications. 
Reasons For Preferring Centrifugal Fans For Process Applications
The industrial centrifugal fans have the ability to develop pressure and this makes 
them a logical choice in an air system with a duct. In cases when resistance to flow is 
a significant factor, it would be complex for a simple centrifugal fan to move very 
large amounts of air. Some commercial fans should be called compressors, where 
there is a requirement to deliver air at very high pressures. The focus on control and 
automation of industrial centrifugal process fans has helped to ensure that the 
performance and efficiency of fans are higher.
About REITZINDIA
Reitz India has set a benchmark to deliver high quality fans for heavy duty industries 
which can work at precise operating conditions like high temperatures and pressures. 
Reitz offer idealistic Centrifugal Fan and Centrifugal blower design that can be used in 
all large scale process industries like cement, iron & steel, power plants, fertilizers/ 
chemicals and more.
Thank you for spending your precious time in reading this article!