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Understanding Types of Industrial Fans

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industrial fans

Industrial fans are part of a large number of applications and machine systems. Besides the motor, if there is any part of machinery that is essential to its well-being, it is the industrial fan. These fans also need proper maintenance and regular service for smooth functioning too. However, there are several basic types of such Industrial fans that are used as per how they fit in. Let’s talk about a few of them.

Axial Industrial Fans

industrial fans

The axial type of fan comes in varied blade shapes such as paddle, aerofoil, sickle, and variable, depending on the pitch each has. The axial types are used in machinery with flow rates that are high. However, the relative pressure needs to be low so as to allow flowing that is parallel to the fan axis. The power input needed is very low though. These fans are mostly picked for applications involving cooling and extraction. In a snippet, these are usable when the resistance needed is of low grade. These fan types are also used when there is a need to move air from a large area to other spaces. Examples are condensers and desk fans.

Tangential Industrial Fans

These types of fans come in barrel shapes and have forward blades that are curved. The blades have long diameters. Tangential fans come with the feature to scoop up the air before delivering the same at low pressure over longer lengths. This is apt for purposes such as keeping the cabinets cool. The prime advantage of these types of fans is that they provide a smooth laminar flow of air over the frame width. Therefore, these are perfect for air conditioner setups, computer systems, and air curtains.

Centrifugal Industrial Fans

The most common impeller blade-based fans are of variants listed below:

  • Forward curved
  • Paddle
  • Backward curved
  • Radial
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The top features of these fans are flow rates that are low, high pressure and airflow that is perpendicular to the axis of blowers. In such fan setups, the fan enters the center and then exits from the outside. Centrifugal fans having paddle impellers are mostly employed when the debris has chances of passing through the system. Such a configuration prevents possible clogs. There are fans that come with blades that are curved backward. These generate a lesser volume of air in comparison to axial units. However, these also generate more pressure. These can be produced in multistage unit sets for generating higher pressures in comparison. Centrifugal type of fans having forward blades have the best flow and pressure needs. However, they need extra power too. The common applications of centrifugal fans are air handling setups, process heating or cooling, electronic-based cooling, and boiler combustion.

Mixed Flow Industrial Fans

industrial fans

This category of industrial fans combines features of both centrifugal and axial fans. These fans use the techniques for air movement of both variants. In this, air comes into inlet sides of fans and the exhausts via axial routes via the outlet. However, the development of pressure in the mixed variant is higher than axial types but closer to the centrifugal grades.

Factors to Consider for Selecting Industrial Fans

 You need to begin by knowing what the requisites of your application are. The airflow rates, the pressure considerations, and volumes are all to be weighed at the outset before selecting the type of fans you want for your purpose. Other factors to be considered are the density of air for movement, the temperature of air, and the level of humidity.

Make sure you take into account the related system restrictions. These can be weighed in discussion with a company specialized in industrial blowers.

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