Centrifugal fans are devices that move air or gas from one location to another, creating a negative pressure that draws the fluid into a filtration or ventilation system. Centrifugal fans are widely used in industry, for applications such as cooling, extraction, dust control, material handling and air exchange.

How centrifugal fans work

Centrifugal fans consist of a bladed impeller that rotates inside a drum-shaped casing. The impeller can have forward, backward or radial curved blades, depending on the type of performance required. The fluid enters the fan in an axial direction (parallel to the axis of rotation) and is accelerated by the impeller outwards, leaving the fan in a radial direction (perpendicular to the axis of rotation). The change in speed and direction of the fluid generates a change in pressure, which creates the air flow.

Advantages of centrifugal fans

Centrifugal fans offer several advantages over other types of fans, such as axial or helical fans. Among the main advantages can be mentioned:

• High efficiency: centrifugal fans have a high efficiency, as they make best use of the mechanical energy supplied by the motor to transform it into kinetic energy of the fluid.
• High Pressure: Centrifugal fans are capable of generating high pressure, even with low air flows. This makes them suitable for applications that require high pressure drops, such as filtration or cooling systems.
• Low noise: centrifugal fans have a lower noise than other types of fans, as the fluid does not come into contact with the surfaces of the casing and the impeller is protected by acoustic shields.
• Flexibility: centrifugal fans can be adjusted according to the needs of the application, by varying the rotation speed of the impeller, the number and inclination of the blades, the shape of the casing and thef connection to the system.

Meridiana Aspiratori follows the technological evolution of ventilation systems with extreme attention, welcoming and studying every innovation in order to be able to provide its customers with a cutting-edge offer that is increasingly in step with innovation in the sector.