Backward Curved Centrifugal Fan

Backward Curved Blower

Price varies by make & configuration. Call for exact pricing.

Centrifugal Fan Backward Curved

847.674.0000

Call us Monday – Friday 8 am – 6 pm CST

Have questions? Need bulk pricing?

Please feel free to contact us for additional help with your selections and to discuss available discounts

* Non-standard delivery locations or off-loading methods may carry additional fees.
* See the shipping tab below for additional details

Backward Curved Centrifugal Fan Tech Specs
Fan Type
Backward Curved
Air Flow
700 CFM – 104,000 CFM
Static Pressure
0.5 in. w.g – 20 in. w.g.
Motor Power
.25 HP – 150 HP
Size
9 in. – 60 in.
Speeds
350 RPM – 3,600 RPM
Warranty
1 – 5 years

Backward Curved Centrifugal Blower Fan

Backward curved centrifugal blower fans deliver efficient air movement through a streamlined design featuring curved blades that rotate away from the direction of motion. These industrial-grade blowers achieve efficiency rates above 80% while handling airflow volumes from 700 to 104,000 CFM at static pressures up to 20 inches.

The non-overloading performance characteristic protects motors from damage during pressure fluctuations, making these units ideal for demanding industrial applications.

Our comprehensive selection of backward curved centrifugal blowers includes models with single-thickness and hollow airfoil blades to match your specific requirements. Each unit incorporates 7-11 robust blades that resist dirt accumulation and maintain consistent performance in challenging environments.

We partner with leading manufacturers to provide blowers & fans for diverse applications.

Our team will help you select the optimal configuration based on your flow rates, pressure requirements, and installation constraints.

Technical Specifications and Applications for Backward Curved Centrifugal Fans

Backward Curved Blower Design Features

The cylindrical housing contains curved impeller blades that rotate away from the airflow direction, creating an efficient 90-degree airflow path from inlet to outlet. An integrated aerodynamic intake cone maximizes performance while the curved blade design prevents motor overload during pressure fluctuations.

Configuration Options for Backward Curved Centrifugal Fans

  • Drive Types: Direct drive for compact installations, belt drive for flexible speed control
  • Wheel Types: Double width double inlet (DWDI) for high-volume applications, single width single inlet (SWSI) for standard operations
  • Width Classes: Class I for light-duty HVAC, Class II for industrial processes, Class III for high-pressure industrial systems

Safety Classifications and Certifications

Available with AMCA certification for air and sound performance. Spark-resistant construction options include Type A (non-ferrous wheel), Type B (non-ferrous blade tips), and Type C (anti-static coatings) for hazardous environments.

Construction Options for Industrial Backward Curved Fans

Housing materials include die-cast aluminum (LM6 grade), stainless steel, and cast iron to suit various operating environments. Impellers feature either single-thickness airfoil blades or double-thickness hollow designs with 7-11 blades depending on size requirements. FRP fiberglass coating is available for corrosive environments.

Common Applications

Share this Backward Curved Centrifugal Fan: