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.
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 25 to 48 (of 53 products)
Nicotra RDH E4-0355 (K) With Flange 0355 ADHE/RDHE
£ 1,792.80
Nicotra RDH E4-0355 (K) With Flange 0355 ADHE/RDHE...
Nicotra RDH E4-0400 (K)
£ 1,929.99
Nicotra RDH E4-0400 (K)
*** THIS PRODUCT CAN NOT BE RETURNED AS IT IS MADE TO ORDER ***...
Nicotra RDH E4-0450 (K)
£ 2,081.00
Nicotra RDH E4-0450 (K)
*** THIS PRODUCT CAN NOT BE RETURNED AS IT IS MADE TO ORDER ***...
Nicotra RER 11-0225
£ 875.00
Nicotra RER 11-0225.
- Lock formed casing, galvanised sheet steel
- discharge flange
- multi position feet
- Deep groove ball bearings, maintenance free...
RD28S-4DW.4ER.2L
£ 4,074.99
RD28S-4DW.4ER.2L
Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4ER.2L...
RD28S-4DW.4R.2L
£ 769.55
RD28S-4DW.4R.2L
Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4R.2L...
RD28S-4DW.4R.AL - (209880)
£ 1,895.00
RD28S-4DW.4R.AL - (209880)
Double inlet centrifugal fan with spiral housing. Type: RD28S-4DW.4R.AL - (209880)...
RD28S-4EW.4R.2L
£ 976.24
RD28S-4EW.4R.2L
Double inlet centrifugal fan with spiral housing. Type: RD28S-4EW.4R.2L...
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 ...
Displaying 25 to 48 (of 53 products)
1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 22 25 Frequency Inverter1 x NKS-D swirl diffuser v-300 x 300mm1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x ELTA - Three Phase Transformer 10amps1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 1001 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 2001 x Round ceiling diffuser 400mm1 x Curved Blade Grille 600x600 (2way blow)1 x JSR 200 Painted RAL50181 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1601 x Elta 3 Amp Electronic single phase speed controller with TK1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 8amps2 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x EFSC-3N- Single Phase Speed Control1 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 200mm1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 300mm1 x ELTA - Single Phase Transformer 4amps1 x Round ceiling diffuser 250mm1 x PCA Diffuser - PCA-2501 x EFSC-6N- Single Phase Speed Control1 x Round ceiling diffuser 350mm2 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps2 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Push Timer Switch - ZA41 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x 7 Day Programmable TIMECLOCK1 x ACO8AC/EC AutoChangeover panel1 x EC-Vent control board1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Systemair Save Connect 2.0 Internet Module1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EC-Vent Room Unit1 x Elta ACO Panel 149-ACO18B1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/501 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Jet Cowl - 315mm1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5952 x AXC TP - 100mm Plastic Centrifugal Inline Fan1 x Single Deflection Grille 400mm with OBD damper1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH1 x Mini Diffuser - 100mm1 x Egg Crate Grille with Dust panel filter 1 inch- 300x3001 x CAD-COMPACT 900 ADVANCED N8 - MVHR unit1 x Envirovent Silent MV160/100S Mixvent - 100mm - (5 year warranty)1 x Same Day Shipping Surcharge - City Sprint1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-4TK1 x Helios TSW 1.5 Amp Transformer speed controller1 x COM-31 x Vent Axia ACM 100 inline mixed flow duct fan1 x Isolator Switch - ISOSW1 x BEAS-control module1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x Vent Axia T-Series Controller1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x Speed Controller - REB51 x TG-K3/NTC10-01 - Duct temperature sensor1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Transformer (silent) speed controller - RE 5.0 Amp1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x REB-CVF 0-10v Controller1 x MTP 10, 10K, Speed control1 x PIR Sensor - PIR21 x Speed Controller - REB11 x Silent 100 Window Kit - windowS1 x MTS10- extractor fan 3 step switch1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Speed Controller - REB2.5-N1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x VTR 300 STD Filter Kit1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Compact SCD450/4-1AC1 x Silentub - STUB 1001 x VEKA INT 2000/15.0-L1 EKO1 x CO2 Room Sensor - CO2-R1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x TD160-NT Mixvent - 100mm - TD160 Timer
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Reviews
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40
I have a loft mount extractor fan which was very noisy. I ...