Centrifugal Fans
Centrifugal fans can help industrial facilities stay kept safe and healthy for the employees who work in them. These facilities frequently put employees at risk of exposure to excessive:
- Heat
- Humidity
- Exhaust
- Airborne chemicals
Fans and blowers play a critical role in minimizing these risks. They help expel poor-quality air from a facility and then introduce clean safe air.
Centrifugal fans are just one variety of industrial fans. At Indventech, our centrifugal fans are manufactured with performance and longevity in mind.
What Are These Types of Fans?
There are two primary varieties of industrial fan: centrifugal and axial. Axial fans move air through intake and discharge that happen in the same direction. Centrifugal fans (sometimes referred to as radial fans) increase the pressure and speed of the air that passes through them. Then, exiting air leaves the fans at a 90-degree angle.
These radial fans use blades that rotate at high speeds. The blades increase the speed and pressure of air as it moves through them. Usually, forward-curved blades help move small volumes of air with minimal noise; backward-curved blades usually create faster airspeeds for larger capacities of air.
Common Applications of Centrifugal Fans
Centrifugal fans can be used in any environment that needs airflow. Because they boast higher pressure capacities than some alternatives, they do see frequent use in environments that are exceptionally:
- Dirty
- Corrosive
- Humid
- Harsh
- Prone to the presence of contaminants and chemicals
Types of Centrifugal Fans
There are several varieties of these radial fans that are differentiated based on their structures. For example, centrifugal fans with backward-curved blades are used for intake suction. Radial fans like these with forward-curved blades tend to be used in tight spaces with large air volumes.
Forward-curved fans
- Low-speed, low-pressure
- Also called “squirrel cage” fans
- Small, forward blades on the impeller
- Backward-inclined fans
- Low-pressure, high-volume
- Three standard blade types available (flat single thickness, curved single thickness, curved airfoil)
- Radial blade fans
- Medium- to high-pressure
- Also referred to as paddlewheel fans
- Radial tip fans
- Backward-curved blades that cup in the direction of wheel rotation
- Usually more efficient than radial blade counterparts
- Moderate material handling capabilities
- Airfoil blade fans
- Hollow, backward-inclined blades
- Large volumes, low- to moderate-static pressures
- Most efficient
- Inline centrifugal fans
- Medium-duty, low-pressure
- Backward-inclined type wheels
- Tube-axial casing
Centrifugal Fans vs. Axial Fans
As mentioned above, centrifugal and axial fans are both popular designs for lots of different applications. Both types of fans are better suited to certain tasks and environments. Axial fans perform best in low-pressure, high-volume airflow settings. They are most commonly used in general purpose applications like computers and kitchens. Centrifugal fans create much higher pressure than axial fans. For this reason, they’re ideal for high-pressure applications. These radial type fans are more energy-efficient, durable, and better at restricting overloading than their axial counterparts.
Benefits of Radial Fans
There are plenty of documentable benefits to using radial type fans:
- Energy efficient: It’s possible to generate energy with static efficiency as high as 84%.
- Allow for high versatility: A centrifugal fan can be used for numerous airflow and pressure combinations; these fans also are capable of processing a variety of airflow conditions (i.e., clean, dry, wet).
- Restrict overloading: Many radial fans feature non-overloading horsepower curves; these help protect the motor from overload in the event that capacity is exceeded.
Types of Fans From Indventech
At Indventech, we’re committed to offering our clients industry-leading fans and blowers for a variety of applications. Our centrifugal fans are ideal for general and industrial purposes; we also offer:
Looking to learn more about our products or services? Get in touch with us today or request a free quote for an upcoming project. You’ll be paired with a customer service representative who can address your individualized questions and concerns.