Non Return Valves & Shutters
Non Return Shutters
Displaying 1 to 16 (of 16 products)
Backdraft Dampers - BDP
£ 5.98
Ducting Backdraft Dampers
The BDP01 damper has aluminium lamellae which open during the air flow in one direction and close when air is draught back. When no air is flowing, the lamellae are maint...
Backdraught Shutters 039-SFSV-63/71
£ 192.96
Backdraught Shutters 039-SFSV-63/71 Back draft shutter for SSRL 710...
Flanged Damper 019-0250-STD
£ 424.76
Flanged Damper 019-0250-STD
Prevents reverse flow of air when fan is not operating
Fixed directly to fan case flange
Hot dip galvanised steel
Galvanised steel butterfly type blades
Suitable for...
Flanged Damper 019-0500-STD
£ 583.15
Flanged Damper 019-0500-STD
Prevents reverse flow of air when fan is not operating
Fixed directly to fan case flange
Hot dip galvanised steel
Galvanised steel butterfly type blades
Suitable for...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 186.32
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
.jpg "JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans")
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 456.75
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans...
RSK355 - Back Draught Shutter
£ 82.95
Back Draught Shutter
for duct
installation
Galvanized sheet steel housing
Aluminium flaps ...
VKS 355-500 Automatic shutter
£ 89.25
VKS Dampers
Automatic shutter
Automatic operation
Robust construction
Seawater resistant
Robust
The VKS is fitted with shutter blades that are manufactured from
seawater-resistant aluminium...
Displaying 1 to 16 (of 16 products)
2 x Duct Tape - Silver - DTape1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x UB47- Universal Insulated Terminal1 x Elta Turboflow-TF - 630mm - Three phase1 x Economy Airvent 150mm Fan1 x Spiral Ducting 1 meter - 250mm1 x PRIO-355-EC1 x HQS Bathroom Axial Flow Fan - 125mm1 x Elta - SMT 125 Mixvent Inline Fan - Clearance Stock Line1 x Chaysol da 9-7 - 3 Speed1 x G2 duct mounted panel filter 630mm1 x Spiral end cap - 100mm1 x TUNE-R-250-3-M5 - Control Damper1 x Elta SCP500/4-3AC - IP551 x 204x60mm Flat Channel Connector1 x MELINEX 100mm Circular Inline Silencers -SLU-6001 x Spiral end cap - 200mm1 x 18M - 80mm PVC flexible ducting1 x FU 15 40 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 2.2KW1 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 FU 075 52 Frequency Inverter (IP20)1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Helios - FIUK-11KW 24.0A - 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 FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x ELTA - Three Phase Transformer 10amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x ELTA - Three Phase Transformer 3amps1 x FU 075 04 Frequency Inverter (IP20)1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps1 x EC6H - Reversible Group Fan Electronic Controller1 x Electronic extractor fan speed controller - FSC 1.51 x Elta 2 Amp Electronic single phase speed controller.1 x Balance S Diffuser - NO RING - 125mm1 x Airvent ceiling fan controller1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven1 x NKS-D swirl diffuser v-300 x 300mm1 x Elta 3 Amp Electronic single phase speed controller.1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Circular Ceiling Diffuser - TST 1251 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 16amps1 x Vortice Quadro Micro 100 I - Standard Version1 x ELTA - Single Phase Transformer 8amps1 x PCA Diffuser - PCA-3151 x Curved Blade Grille 600x600 (2way blow)1 x Circular Ceiling Diffuser - TST 1001 x Helios TSW MCB Amp Transformer speed controller1 x COM-31 x EFSC-3N- Single Phase Speed Control1 x Helios TSW 10 Amp Transformer speed controller1 x EFSC-6N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Vent Axia T-Series Controller1 x Round ceiling diffuser 400mm1 x Circular Ceiling Diffuser - TST 1601 x Circular Ceiling Diffuser - TST 2001 x JSR 200 Painted RAL50181 x ELTA - Single Phase Transformer 10amps1 x Elta 6 Amp Electronic single phase speed controller.1 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 300mm1 x PCA Diffuser - PCA-2501 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x Run On Timer - 5s - 4hrs - RT5A1 x Remote Timer Control - 13511 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Time Delay Unit - DT20B1 x ACO8AC/EC AutoChangeover panel1 x TTC-2000 Three phase electric heater controller1 x 7 Day Programmable TIMECLOCK1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x Systemair Save Connect 2.0 Internet Module1 x GXC6EC - High Performance Extract Fan1 x ACO 149-ACO1/EDV1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Helios HQW-355/4 - IP551 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC56/631 x Elta Louvre Shutter - 400mm
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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 ...