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 Spiral Ducting 1 meter - 80mm1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x LINEO 200 QUIET ES1 x Etaline 355mm - E2-011 x Helios DDF-400 Roof Cowl1 x Female Ducting Connector - 80mm1 x Elta Turboflow Max TF - 560mm - Three phase1 x Duct Split Rings (Pair) -710mm1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x FRQ5-10A Inverter Speed controller1 x FU 22 25 Frequency Inverter1 x Frequency converter RUCK - FU 075 201 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 4.0KW1 x FRQ5-4A V2 Inverter Speed Controller1 x Elta Variable Speed Drive IP66 - 0.75KW1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta 10 Amp Electronic single phase speed controller.2 x 5-Speed Controller for use with Elta SAX Classic Fans1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Helios TSW 1.5 Amp Transformer speed controller1 x ELTA - Single Phase Transformer 2amps2 x COM-31 x NKS-D swirl diffuser v-300 x 300mm1 x Balance S Diffuser - NO RING - 125mm1 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Airvent ceiling fan controller1 x Elta 2 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x Curved Blade Grille 600x600 (2way blow)1 x Elta 6 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 12amps1 x Circular Ceiling Diffuser - TST 1251 x EFSC-6N- Single Phase Speed Control1 x JSR 200 Painted RAL50181 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x PCA Diffuser - PCA-3151 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 400mm1 x Circular Ceiling Diffuser - TST 2001 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x ELTA - Single Phase Transformer 10amps1 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 200mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Push Timer Switch - ZA41 x Run On Timer - 5s - 4hrs - RT5A1 x Remote Timer Control - 13511 x Multi Input Run On Timer - 0 - 20min - CFCU1 x ACO8AC/EC AutoChangeover panel1 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x CONTROL ECOWATT - Basic1 x Elta ACO Panel 149-ACO14E1 x EM30-24 Electro-Mechanical Control Panel1 x Systemair Save Connect 2.0 Internet Module1 x ACO 149-ACO1/EDV1 x Elta ACO Panel 149-ACO18B1 x EC-Vent control board1 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 Speed Controller - REB31 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x Elta Wall Cowl SWC56/631 x GRA-100 External Grill by S&P1 x Elta Louvre Shutter - 400mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC25/311 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Jet Cowl - 315mm1 x Elta Wall Cowl SWC45/501 x Elta Wall Cowl SWC35/401 x 220x90mm Insulated Rectangular Horizontal 45° Bend1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 710
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Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40
I have a loft mount extractor fan which was very noisy. I ...