Frequently Asked Questions

1. What are backward curved fans, and how do they function?

Backward curved fans are a type of centrifugal fan featuring blades that curve away from the direction of rotation. This design allows the fan to efficiently handle higher air pressures and volumes, making them suitable for various industrial applications.

2. What are the advantages of using backward curved fans?

Backward curved fans offer several benefits:

• Energy Efficiency: Their design enables high-pressure and high-volume airflow while consuming less power.

• Enhanced Stability: The curved blades reduce dust accumulation and are less prone to stalling, ensuring smooth operation.

• Quieter Operation: The blade configuration minimises air turbulence and vibration, leading to reduced noise levels.

3. In which applications are backward curved fans typically used?

These fans are ideal for applications requiring medium pressure and medium volume flows, such as industrial ventilation and process air handling. Their efficiency and performance make them suitable for overcoming resistance in duct systems and other environments where maintaining consistent airflow is crucial.

4. What materials are used in the construction of Indrotech’s backward curved fans?

Indrotech manufactures backward curved fans using materials like mild steel, various grades of stainless steel, and high nickel alloys for high-temperature applications. We also offer a range of protective coatings, including zinc primer with enamel topcoat and specific-thickness epoxy topcoats, to ensure durability in various environments.

5. How can I select the appropriate backward curved fan for my needs?

Choosing the right fan depends on factors such as airflow requirements, pressure levels, and environmental conditions. Indrotech’s experienced engineers can assess your specific needs and recommend the most suitable fan solution. For assistance, please contact us at 03 9796 5444 or visit our Contact Us page.