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 Speed Controller - REB1-N1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 075 52 Frequency Inverter (IP20)1 x FU 22 25 Frequency Inverter1 x FU 15 40 Frequency Inverter1 x FU 075 04 Frequency Inverter (IP20)1 x ELTA - Single Phase Transformer 2amps1 x JSR 200 Painted RAL50181 x EFSC-3N- Single Phase Speed Control1 x Round ceiling diffuser 350mm2 x COM-31 x EFSC-6N- Single Phase Speed Control2 x Elta 6 Amp Electronic single phase speed controller.1 x Run On Timer - 5s - 4hrs - RT5A1 x Helios ZNE Electronic Fan Overrun Timer2 x Push Timer Switch - ZA42 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x 7 Day Programmable TIMECLOCK1 x Balance S Diffuser - NO RING - 125mm1 x Airvent ceiling fan controller1 x Elta 3 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 10amps1 x TTC-2000 Three phase electric heater controller1 x Elta 10 Amp Electronic single phase speed controller.1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 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 EC-Vent Room Unit1 x Elta ACO Panel 149-ACO18B1 x Systemair Save Connect 2.0 Internet Module1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Easy-fix termination kit - High Rise Ventilator - EFT2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x Transformer (silent) speed controller - RE 3.0 Amp1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x Remote Timer Control - 13511 x Envirovent G4 Filter - SL-G4/F71 x Vent Axia T-Series Controller1 x Speed Controller - REB51 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x CBM 9-9 550w 4P VR (Open Motor)1 x Elta Wall Cowl SWC56/631 x REB-CVF 0-10v Controller1 x MTS10- extractor fan 3 step switch1 x Transformer 5 Speed Controller - ATC1-12TK1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Vent Axia ACM 100 inline mixed flow duct fan1 x Vent Axia ACM 125 inline mixed flow duct fan2 x Isolator Switch - ISOSW2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x TG-K Duct temperature sensor1 x Multiflow SMB550/4-1AC1 x Elta Wall Cowl SWC35/401 x Speed Controller - REB12 x PIR Sensor - PIR21 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC45/501 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC25/311 x QPTW 250C Acoustic Twin Fan with Controller1 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller1 x Electronic extractor fan speed controller - FSC 1.51 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x MTP 10, 10K, Speed control1 x Vent Axia Silent 100T (TIMER)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7102 x PIR Sensor - PIR41 x Vent Axia ACM 150 inline mixed flow duct fan1 x Helios TSW MCB Amp Transformer speed controller1 x Vent Axia ACM 200 inline mixed flow duct fan1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x CBT-100N Centrifugal2 x UB47- Universal Insulated Terminal1 x Contactor Interface Station - CI91 x Jet Cowl - 315mm1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Speed controller with Reverse - REB-1R3 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE2 x Transformer 5 Speed Controller - ATC1-4TK1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x Elta 6 Amp Electronic single phase speed controller with TK1 x EC6H - Reversible Group Fan Electronic Controller2 x TG-K3/NTC10-01 - Duct temperature sensor1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Elta - Room Sensor - Temp/Humid/C021 x Elta Variable Speed Drive IP66 - 1.5KW1 x SAVE VSR 300 heat recovery unit2 x Helios TSW 1.5 Amp Transformer speed controller1 x Elta 3 Amp Electronic single phase speed controller with TK1 x CBS-60 Outlet Flange for CSB/CBT-601 x TD Mixvent 800/200 EEXEIIT31 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x VTR 300 STD Filter Kit2 x Speed Controller - REB2.5-N
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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 ...