Non Return Valves & Shutters

Non Return Shutters

Displaying 1 to 16 (of 16 products)
Backdraft Dampers - BDP
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
Backdraught Shutters 039-SFSV-63/71
£ 192.96
Backdraught Shutters 039-SFSV-63/71 Back draft shutter for SSRL 710...
BDS 200/250 RA b/d shutter
BDS 200/250 RA b/d shutter
£ 59.07
BDS 200/250 RA b/d shutter...
BDS 300/315 RA b/d shutter
BDS 300/315 RA b/d shutter
£ 72.20
BDS 300/315 RA b/d shutter...
BDS 350 RA b/d shutter
BDS 350 RA b/d shutter
£ 90.13
BDS 350 RA b/d shutter...
BDS 400/450 RA b/d shutter
BDS 400/450 RA b/d shutter
£ 95.33
BDS 400/450 RA b/d shutter...
BDS 500/560 RA b/d shutter
BDS 500/560 RA b/d shutter
£ 114.39
BDS 500/560 RA b/d shutter...
BDS 630/710 RA b/d shutter
BDS 630/710 RA b/d shutter
£ 144.13
BDS 630/710 RA b/d shutter...
BDS 800 RA b/d shutter
BDS 800 RA b/d shutter
£ 171.71
BDS 800 RA b/d shutter...
Flanged Damper 019-0250-STD
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
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...
Helios Condense Collector
Helios Condense Collector
£ 168.68
Helios Condense Collector...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 186.32
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
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
RSK355 - Back Draught Shutter
£ 82.95
Back Draught Shutter for duct installation Galvanized sheet steel housing Aluminium flaps ...
VKS 355-500 Automatic shutter
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 Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x NKS-D swirl diffuser v-300 x 300mm1 x FU 075 52 Frequency Inverter (IP20)1 x Balance S Diffuser - NO RING - 100mm1 x Circular Ceiling Diffuser - TST 1601 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x Helios ZNE Electronic Fan Overrun Timer1 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B2 x Push Timer Switch - ZA41 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x EC-Vent control board1 x Elta ACO Panel 149-ACO14E1 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 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 EM30-24 Electro-Mechanical Control Panel1 x EC-Vent Room Unit1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta ACO Panel 149-ACO18B1 x Systemair Save Connect 2.0 Internet Module1 x EM30-24 Control Panel Commissioning Service1 x Elta Wall Cowl SWC56/631 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC45/501 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC25/311 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Elta Louvre Shutter - 400mm1 x Non Vision 150mm x 150mm (Air Transfer) Grille - With Flange - MILL FINISH2 x Mini Diffuser - 100mm1 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-4TK1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x Circular Ceiling Diffuser - TST 1251 x Circular Ceiling Diffuser - TST 2001 x Elta Variable Speed Drive IP66 - 4.0KW1 x Circular Ceiling Diffuser - TST 1001 x Round ceiling diffuser 400mm1 x FU 22 04 Frequency Inverter1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x FU 075 04 Frequency Inverter (IP20)1 x Helios TSW 1.5 Amp Transformer speed controller1 x Round ceiling diffuser 200mm1 x BEAS-control module1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x CBS-60 Outlet Flange for CSB/CBT-601 x Transformer Speed Control - RTRE- 1.5Amp1 x Speed Controller - REB51 x Speed Controller - REB11 x Speed Controller - REB1-N1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x REB-CVF 0-10v Controller1 x PIR Sensor - PIR21 x VEKA INT 2000/15.0-L1 EKO1 x QPTW 250C Acoustic Twin Fan with Controller1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x SAVE VSR 300 heat recovery unit1 x UB47- Universal Insulated Terminal1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x KBA- Inlet Mounting 2251 x CFI In-line 150 - Carbon Filter
Reviews
TD-SILENT 350/125
TD-SILENT 350/125
£ 178.68

Excellent low noise fan, I've got one unit running years and...