Centrifugal Scroll Fans

Commercial Centrifugal Scroll Fans, forward curved and backward curved impellers, different versions and sizes of double and single inlet fans available. Often classified by two numbers, eg. 10/10, 9/9 etc. This indicates the size of the scroll/squirrel cage impeller. ie. 10 inches long, 10 inches diameter. Closed motor or external rotor versions advised for dirty air.
Also known as snail fans.
These need an enclosure to operate and are normally at one end of a system. For inline commercial fans, see our Centrifugal & MixVent Fans or industrial section. for larger units.

Displaying 49 to 54 (of 54 products)
RD31S-4DW.6Q.AL - 121303  (Three Phase)
RD31S-4DW.6Q.AL - 121303 (Three Phase)
£ 1,456.92
RD31S-4DW.6Q.AL Double inlet centrifugal fan with spiral housing. Type: RD31S-4DW.6Q.AL ...
RD31S-4EW.6Q.AL - 122296 (Single Phase)
RD31S-4EW.6Q.AL - 122296 (Single Phase)
£ 1,456.92
RD31S-4EW.6Q.AL Double inlet centrifugal fan with spiral housing. Type: RD31S-4EW.6Q.AL ...
RD35S-4DW.6W.3L - 122297  (Three Phase)
RD35S-4DW.6W.3L - 122297 (Three Phase)
£ 1,387.00
RD35S-4DW.6W.3L Double inlet centrifugal fan with spiral housing. Type: RD35S-4DW.6W.3L ...
Rosenberg DRAD-224-4 Double Inlet High Efficiency Radial Fan
Rosenberg DRAD-224-4 Double Inlet High Efficiency Radial Fan
£ 555.00
Rosenberg- Centrifugal fans with forward curved impellers, Types ERA.../ DRA... 400 volt 3 phase 50 Hz , 0.87kW 1210RPM Single and double inlet casings, made from galvanized steel, with spiral scr...
Torin fan  -  178206-A-00
Torin fan - 178206-A-00
£ 1,345.00
Torin fan - 178206-A-00...
Torin fan - DDN913-824 -  076192-03
Torin fan - DDN913-824 - 076192-03
£ 2,349.00
Torin fan - DDN913-824 - 076192-03...
Displaying 49 to 54 (of 54 products)
1 x 7 Day Programmable TIMECLOCK1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x Egg Crate Grille with Dust panel filter 1 inch- 300x3002 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Speed Controller - REB51 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x REB-CVF 0-10v Controller1 x Elta Wall Cowl SWC25/311 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Push Timer Switch - ZA41 x Vent Axia ACM 150 inline mixed flow duct fan1 x Helios ZNE Electronic Fan Overrun Timer1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x VTR 300 STD Filter Kit1 x CO2 Room Sensor - CO2-R1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x RUCK MTP 20, 10K, Speed control1 x Helios TSW 1.5 Amp Transformer speed controller1 x CS2 Current Switch1 x Transformer speed controller - ATC1 - 1.5 Amps1 x Run On Timer - 5s - 4hrs - RT5A1 x Vent Axia ACM 125 inline mixed flow duct fan1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x BEAS-control module1 x Remote Timer Control - 13511 x WS - Reversing Switch from Helios Fans1 x Electronic extractor fan speed controller - FSC 1.51 x Speed Controller - REB1-N1 x PIR Sensor - PIR21 x Silent 100 Window Kit - windowS1 x PIR Sensor - PIR41 x TD Mixvent 800/200 EEXEIIT32 x Mini Diffuser - 100mm1 x ACO8AC/EC AutoChangeover panel1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x CSB-60 Centrifugal fan
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...