EC Backward Centrifugal Fans φ450: Engineered for High-Performance Ventilation

EC Backward Centrifugal Fans: High-Efficiency Industrial Ventilation

The EC Backward Centrifugal Fans are built with advanced technology, offering high airflow capacity and energy-efficient motors. These fans are ideal for demanding industrial applications such as HVAC, refrigeration, and air handling systems.

Key Features of EC Backward Centrifugal Fans

The EC Backward Centrifugal Fans are designed for maximum durability and efficiency. The key features include:

• Material: Sheet Aluminum
• Protection Class: IP44
• Certifications: CCC, CE, RoHS
• Insulation Class: B

Table of Specifications:

Applications of EC Backward Centrifugal Fans

These EC Backward Centrifugal Fans are versatile and ideal for use in:

• HVAC Systems
• Air Handling Units
• Heat Recovery Units
• Air Purifiers
• Industrial Ventilation
• Roof Fans

These fans are engineered to handle high system resistance while maintaining energy efficiency.

Operating Principle of EC Backward Curved Centrifugal Fans

The EC Backward Centrifugal Fans use backward curved blades to direct airflow outwards from the impeller, perpendicular to the motor’s axis of rotation. This design enhances pressure generation and reduces motor overload, making these fans ideal for high-resistance industrial applications.

What Happens When a Centrifugal Fan Runs Backwards?

When a centrifugal fan runs backwards, its performance significantly decreases, leading to reduced airflow and potential inefficiencies. Over time, running a fan in reverse can damage the motor and other system components.

What is a Backward Curved Centrifugal Fan?

A Backward Curved Centrifugal Fan is a fan designed with blades that curve away from the direction of rotation. This design generates higher pressure with lower energy consumption, making it more efficient than forward curved fans.

Which is Better: Forward or Backward Centrifugal Fan?

Backward curved fans are generally more efficient and are better suited for handling high system resistance. They provide higher pressure with less energy consumption compared to forward curved fans.

Are Centrifugal Fans Reversible?

Centrifugal fans are not typically designed to be reversible. Operating them in reverse would reduce efficiency and may damage the motor over time.

Why Choose AFL’s EC Backward Centrifugal Fans?

1. Low Operating Costs: High-efficiency motors minimize long-term operating expenses.
2. Durability: Constructed with high-quality materials and advanced engineering.
3. Flexible Installation: Compact design and integrated mounting plate simplify installation.
4. Global Certifications: Certified by CCC, CE, RoHS, ensuring compliance with international safety and environmental standards.

About Airflow Company

Founded in 2014, Airflow Company is a global leader in the development and production of energy-efficient fans, including EC Backward Centrifugal Fans. With manufacturing bases across Jiaxing, Hangzhou, and Shijiazhuang, Airflow provides industry-leading solutions for HVAC, air handling, telecommunications, and industrial applications worldwide.

FAQs About EC Backward Centrifugal Fans

1. What happens when a centrifugal fan runs backward?

   • Running a centrifugal fan backward reduces its efficiency and may damage the motor.

2. What is a backward curved centrifugal fan?

   • It’s a type of fan with blades curved away from the direction of rotation, designed for high efficiency and pressure generation.

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

   • Backward curved fans are more efficient, offering higher pressure and lower energy consumption than forward curved fans.

4. Are centrifugal fans reversible?

   • No, running them in reverse decreases efficiency and can lead to motor damage.

5. Why choose AFL not others?

   • AFL offers high-quality fans, with top-notch engineering and components sourced from leading suppliers. The company has a solid reputation for both domestic and international markets.

6. How about delivery time?

   • Sample orders below 10 pieces can be dispatched within 10 days. AFL’s production capacity is 1000 fans per day across four production lines.

7. What kind of payments do you support?

   • AFL supports T/T, L/C, and other payment options upon request.

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

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

9. How does AFL handle transportation?

   • AFL ships products via air express, LCL, or container based on the order size.

10. How can I contact AFL for inquiries?

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

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