Industrial Centrifugal Fans
The Industrial Duty Centrifugal Fans, series 41, are designed for heavy duty air movement applications. Series 41 construction includes both backward inclined and airfoil centrifugal wheels fans and features heavy gauge, fully welded steel housings on all sizes. Stainless steel and aluminum construction materials are available for either the entire unit or air stream parts.

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Application Information
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General Information
Overview
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Models BIDW/AFDW: Double Width
Operated in non-ducted inlet applications, primarily handling clean air at ambient temperatures. Higher volume capacities allow for a more compact system design than with single width fans. These models are available as belt driven units.
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Models BISW/AFSW/BISWD: Single Width
Operated in broad range of fan applications, typically in ducted systems. Versatile construction options allow use in environments which require spark resistance, high temperature tolerance, or resistance to corrosive elements. Model AFSW is available as a belt drive unit only. Model BISW is available as a belt or direct drive unit.
Catalogs
- Coatings for Extreme Applications
- Dampers for Centrifugal Fans
- Marine Products - Dampers, Louvers and Fans
- Mounting Bases and Vibration Isolation
- Series 21 & 41 Industrial Duty Centrifugal Fans
- Sure-Aire Flow Monitoring System
Other Product Information
Performance Supplements
Instruction Manuals
Specifications
- Airfoil, Double Width Belt Drive, AFDW-41
- Airfoil, Single Width Belt Drive, AFSW-21
- Airfoil, Single Width Belt Drive, AFSW-41
- Airfol, Double Width Belt Drive, AFDW-21
- Backward Inclined Double Width Belt Drive, BIDW-21
- Backward Inclined Single Width Belt Drive, BISW-21
- Backward Inclined, Double Width Belt Drive, BIDW-41
- Backward Inclined, Single Width Belt Drive, BISW-41
- Backward Inclined, Single Width Direct Drive, BISW-41
Drawings
| Configured Model Selection CAPS required to Create |
Static Model Download Now |
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| 3D | 2D | 3D | 2D | ||||||
| Product | |||||||||
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AFDW | In CAPS | Transmit |
AFDW-21
AFDW-41 |
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AFSW | In CAPS | Transmit |
AFSW-21
AFSW-41 |
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BIDW | In CAPS | Transmit |
BIDW-21
BIDW-41 |
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BISW | In CAPS | Transmit |
BISW-21
BISW-41 |
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Other Info
Sure Aire
If your application requires real time flow measurement, the Sure-Aire is a great accessory to include. The Sure-Aire provides the benefits of traditional flow probes which are placed in the airstream, but with the Sure-Aire's non-invasive design, fan performance is not affected. For more information about the Sure-Aire system, including a head-to-head comparison video, click here.Sure-Aire Monitoring System


