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Engineered Solutions

Centrifugal Fans
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Engineered Solutions

There are many possible reasons for fan retrofits. Fans in power plants, for example, were often overdesigned to compensate for air heater leakage. Sometimes, system resistance was simply miscalculated. Changes of all kinds in the plant affect the system resistance.

Factors like these have a serious impact on fan efficiency and performance. And even where a fan meets its output targets, noise and vibration can carry heavy costs and contribute to mechanical failure.

There are a number of options to consider:


  • A change to variable speed drive.
  • Increasing the fan performance.
  • Reducing the fan performance.
  • Replacement impeller.
    (In an existing casing not matched to the impeller design)
  • Adding erosion or corrosion protection.
    Improving inlet / discharge flow conditions.


Read more in our fan retrofit and enhancement literature.


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