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)
1 x Run On Timer - 5s - 4hrs - RT5A3 x Remote Timer Control - 13513 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B2 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp2 x ACO8AC/EC AutoChangeover panel1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x EC-Vent Room Unit1 x Systemair Save Connect 2.0 Internet Module1 x Elta ACO Panel 149-ACO18B1 x EM30-24 Control Panel Commissioning Service1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Egg Crate Grille with Dust panel filter 1 inch- 595x5951 x Single Deflection Grille 400mm with OBD damper1 x Vent Axia ACM 125 inline mixed flow duct fan1 x TG-K Duct temperature sensor1 x Transformer (silent) speed controller - RE 3.0 Amp2 x Speed Controller - REB11 x QPTW 250C Acoustic Twin Fan with Controller1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH1 x Mini Diffuser - 100mm1 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Remote controller FLEX - for VEKO INT1 x Helios TSW 7.5 Amp Transformer speed controller2 x Transformer 5 Speed Controller - ATC1-4TK2 x Vent Axia ACM 150 inline mixed flow duct fan1 x Helios TSW MCB Amp Transformer speed controller2 x Vent Axia ACM 100 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 Three Phase Transformer controllers - RMT 1.5 Amp1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Speed Controller - REB51 x Transformer (silent) speed controller - RE 5.0 Amp1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x REB-CVF 0-10v Controller1 x Speed Controller - REB1-N1 x CBM 9-9 550w 4P VR (Open Motor)2 x PIR Sensor - PIR21 x Silent 100 Window Kit - windowS2 x PIR Sensor - PIR41 x UB47- Universal Insulated Terminal1 x MWS 3 – Transformer Controller With Motor Protection1 x CBT-100N Centrifugal1 x AIRVENT speed control - AIR4019611 x Silentub - STUB 1001 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x AXC TP - 100mm Plastic Centrifugal Inline Fan1 x VEKA INT 2000/15.0-L1 EKO1 x Duct Termination with Mesh - 100mm1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x CS2 Current Switch1 x Helios TSW 1.5 Amp Transformer speed controller1 x DEF-140T Inlet Guard for the CBT-100N1 x Isolator Switch - ISOSW1 x WS - Reversing Switch from Helios Fans1 x Helios HQW-630/4 - IP551 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB101 x Transformer Speed Control - RTRE- 7.0Amp1 x Helios HQW-315/4 - IP551 x MTP 10, 10K, Speed control1 x Transformer Speed Control - RTRE- 1.5Amp1 x MTS10- extractor fan 3 step switch1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Vent Axia Silent 100T (TIMER)1 x DDMP 12-12 3F 1810W M6A4 DG01 x DDMP 09/09 Mounting Flange1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x Speed Controller - REB2.5-N
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Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29
Unbelievable! With TDmixvent500: noise reduction minimum 50%...