Backward curved rectangular duct fans
Backward curved rectangular duct fans
Backward curved rectangular duct fans
Ideal for transporting even contaminated air
Helios centrifugal rectangular duct fans with backward curved impeller blades for conveying contaminated air. Particularly easy to service due to the retractable motor-impeller unit. High-performance impellers with high efficiency. Compact design, low space requirement, linear rectangular duct throughflow. Optionally available with EC technology and as SKR type with silenced AcousticLine version.
All models
Start a detailed selection of this product category here and find suitable accessories.
| Ref.-No. | Type | Vmax (m³/h) | Duct dimension (cm) | Sound-insulated | Actions |
|---|---|---|---|---|---|
| 8175 | KRD EC 560/100/50 B | 13600 | 1000/500 | yes | |
| 7589 | KRW EC 315/50/25 B | 2250 | 500/250 | ||
| 8181 | SKRD 355/4/60/35 | 2800 | 600/350 | yes | |
| 8196 | SKRD 450/4/70/40 | 5430 | 700/400 | yes | |
| 8198 | SKRD 500/4/80/50 | 8050 | 800/500 | yes | |
| 8197 | SKRD 500/6/70/40 | 4620 | 700/400 | yes | |
| 8199 | SKRD 560/6/80/50 | 7600 | 800/500 | yes | |
| 8296 | SKRD EC 355/60/30 | 4340 | 600/300 | yes | |
| 8297 | SKRD EC 400/60/35 | 4580 | 600/350 | yes | |
| 8178 | SKRD EC 450/70/40 A | 7460 | 700/400 | yes | |
| 8299 | SKRD EC 500/80/50 A | 7990 | 800/500 | yes | |
| 8179 | SKRD EC 500/80/50 B | 8760 | 800/500 | yes | |
| 6130 | SKRD EC 560/100/50 A | 9370 | 1000/500 | yes | |
| 8180 | SKRD EC 560/100/50 B | 12900 | 1000/500 | yes | |
| 8681 | SKRW 355/4/60/35 | 3580 | 600/350 | yes | |
| 6143 | SKRW 400/4/70/40 | 4940 | 700/400 | yes | |
| 7588 | SKRW EC 315/50/25 A | 1270 | 500/250 | yes | |
| 8182 | SKRW EC 315/50/25 B | 2170 | 500/250 | yes | |
| 8176 | SKRW EC 355/60/30 | 3860 | 600/300 | yes | |
| 8177 | SKRW EC 400/60/35 | 3960 | 600/350 | yes | |
| 6129 | SKRW EC 450/70/40 | 5390 | 700/400 | yes |
