Features Associated with Industrial Fans

Virtually every industrial depends on a fan or blower but in many cases, heavy-duty industrial fans are needed opposed to low and medium duty units. Within the industrial fan category are many different types of fans.

Examples of Industrial Fans

For example, pre-engineered fans have a range of blade shapes and being pre-engineered, they are typically a great cost-efficient choice. Pressure blowers are also commonly used, which are used primarily in combustion air applications as a means of blowing off air for drying and clearing applications.

There are also surge less blowers, which are high-pressure, low-volume units that do not surge as much as other fans. Because of this, extreme turndown is allowed without noticing major pulsation. Acid gas blowers are yet another option, which are very heavy-duty. These blowers are best suited for inlet pressures that range from full vacuum to 100psig.

Sub-Fan Types

Industrial fans also come in many different subtypes.

  • Air Foil – In this case, the fan has hollow air foil profiled blades. This design is excellent when quiet operation and high efficiency are mandatory. Typically, these fans provide continuous service where draft applications are needed to include industries like power generation, metals, rock products incineration, and so on.
  • Backward Curve – This is another high-efficiency fan but because the design includes single thickness and curved plate blades, dust particles seldom build up. These industrial fans are most often used in high-pressure applications and provide excellent tip speed operation.
  • Backward Inclined – In this case, the blades are flat and bent backwards slightly. As such, the velocity pattern of air that passes through the wheel is matched, thereby providing high-efficiency operation.
  • Radial Blade – The blades on this fan are also flat but what makes them unique is that they are arranged in a radial pattern. Ranked as being “rugged”, these industrial fans usually have liners that are erosion resistant, which ultimately extends the life of the rotor.

Forward Curve – Many people refer to these industrial fans as being squirrel cages. For the highest volume flow rate, this is the best fan. This type of centrifugal fan is commonly used in high-temperature furnaces but they also work great for a wide range of commercial and industrial applications.

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