An Overview of Radial Fans

When you are planning to operate or install the radial fans there are basic facts you need to know and these include:

1. The static pressure; it can be a negative or a positive pressure. It is used to describe the difference between the static outlet pressure and the total inlet pressure.
2. The dynamic pressure; this pressure can only be a positive pressure and it is equivalent to the average of the speeds at all outlets of the fans.
3. The total pressure; this is the algebraic sun of both the static and dynamic pressure.
4. The volume of the fan; it refers to the volumetric flow that is related to a given degree of air density

These are some of the basic parameters that are used to describe the fan laws. They play significant role in the fans operation.

The radial fans are examples of centrifugal fans. The centrifugal fans are distinguished by the fact that the flow of air is forced to change by 90ᵒ as the fan’s impeller rotates. This angle is determined with reference to both the exit and the entrance.

A centrifugal fan with a radial blade can be compared to a paddle like wheel. These blades re designed in such a way that they are perpendicular to the direction of in which the wheel rotates. They can be operated at medium speeds to move a given amount of air.

In most cases, the radial blade fans are mainly used in the material handling applications. It for this reason that they feature a rugged and robust construction. They can be used for high pressure industrial applications.

Advantages of radial fans

1. The fans are mainly used for high static pressure and at high temperatures. This makes them a perfect choice for most industrial applications.
2. They have a simple design thus, it is easier to customize the fans for special applications.
3. At very low air flows, these fans can still operate efficiently without any vibration problems.
4. Since the radial fans have a large running clearance, they can be used in metal chips applications and airborne solids. That is, a general material handling application.
5. They are durable and they can attain an efficiency of about 75%

The radial centrifugal fans are only suitable for low-medium airflow applications. This is of course, one of the main disadvantages of these fans come with. For more information about radial fans, you can visit Leesii product page.