EC Backward Centrifugal Fans-High-Efficiency Industrial Ventilation

EC Backward Centrifugal Fans: High-Efficiency Industrial Ventilation

The EC Backward Centrifugal Fans are designed for high-performance industrial ventilation applications. With optimized airflow, energy-efficient motors, and durable construction, these fans offer reliability and flexibility for a wide range of installations.

Key Features of EC Backward Centrifugal Fans

The EC Backward Centrifugal Fans from AFL manufacturers feature advanced design and energy-efficient components, including:

• Material: PA66 plastic impeller for durability
• Protection Class: IP44 for protection against dust and moisture
• Certifications: CCC, CE
• Insulation Class: B

Table of Specifications:

Applications of EC Backward Centrifugal Fans

The EC Backward Centrifugal Fans are ideal for a variety of industrial and commercial applications, including:

• HVAC Systems
• Air Purification Units
• Factory Ventilation
• Telecommunications Cooling
• Refrigeration and Air Conditioning Systems

These fans provide high airflow capacity while maintaining energy efficiency, making them perfect for overcoming system resistance in ventilation systems.

Operating Principle of EC Backward Curved Centrifugal Fans

In radial fans, the air is directed outward from the impeller, perpendicular to the motor’s axis of rotation. Backward curved impellers require higher speeds than forward curved impellers but offer greater efficiency by reducing motor overload and enhancing pressure generation.

Advantages of EC Backward Centrifugal Fans

• Low Operating Costs: High-efficiency motors keep long-term running costs low.
• Outstanding Flexibility: Fully adjustable airflow rates ensure performance across diverse applications.
• Compact Design: Fits into space-constrained environments.
• Durability: Built with high-quality components for long-term reliability.
• Compliance: Certified with CE, RoHS, Reach, and ErP standards.

What Happens When a Centrifugal Fan Runs Backwards?

When a centrifugal fan runs backward, its performance decreases significantly, causing reduced airflow and efficiency. Additionally, running a fan backward may lead to motor strain and possible damage over time.

What is a Backward Curved Centrifugal Fan?

A backward curved centrifugal fan is a type of industrial fan where the impeller blades are curved away from the direction of rotation. This design is more efficient than forward-curved blades because it generates higher pressure while reducing energy consumption and motor overload.

Which is Better: Forward or Backward Centrifugal Fan?

Backward curved centrifugal fans are generally more efficient and better suited for handling high system resistance compared to forward curved fans. They operate at higher speeds and are less susceptible to motor overload, making them ideal for industrial applications.

Are Centrifugal Fans Reversible?

Centrifugal fans are not typically designed to be reversible. Running them in reverse can lead to reduced performance and potential mechanical issues. They are meant to operate in the designed direction for optimal efficiency.

About AFL Company

Founded in 2014, AFL Company is a key player in producing energy-efficient fans for industrial applications, including EC Backward Centrifugal Fans. With three production bases in China, Airflow provides high-quality, globally certified products that meet industry standards for energy efficiency and durability.

FAQs About EC Backward Centrifugal Fans

1. What happens when a centrifugal fan runs backward?

   • Running a fan backward reduces efficiency and can cause motor strain and lower airflow output.

2. What is a backward curved centrifugal fan?

   • A fan with backward curved blades is designed to generate higher pressure and airflow while consuming less energy.

3. Which is better: forward or backward centrifugal fans?

   • Backward centrifugal fans are more efficient and suitable for high-resistance environments.

4. Are centrifugal fans reversible?

   • No, centrifugal fans are not designed to be reversible, and running them in reverse can negatively impact their performance.

5. Why choose AFL instead of other manufacturers?

   • AFL provides high-quality fans with a skilled engineering team and uses top-notch components sourced from world-leading suppliers. The company offers OEM production and has an excellent reputation in both domestic and international markets.

6. How fast can I get a sample order?

   • For sample orders under 10 pieces, AFL dispatches within 10 days. With four production lines, the company can produce 1000 fans daily.

7. What payment methods does AFL support?

   • AFL accepts T/T, L/C, and other payment methods upon request.

8. What is the minimum order quantity (MOQ)?

   • The MOQ for sample orders is one fan, allowing customers to test the product quality before bulk purchases.

9. How does AFL handle transportation?

   • AFL offers shipping via air express, LCL, or container, depending on the order size.

10. How can I contact AFL for inquiries?

    • AFL welcomes inquiries via email, phone, or instant messaging and responds within 24 hours.