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 - REB51 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x FRQ5-10A Inverter Speed controller1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Balance S Diffuser - NO RING - 125mm1 x Circular Ceiling Diffuser - TST 2002 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x Balance S Diffuser - NO RING - 100mm1 x EFSC-3N- Single Phase Speed Control2 x Elta 3 Amp Electronic single phase speed controller with TK1 x Airvent ceiling fan controller1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm1 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm2 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x CS2 Current Switch2 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A1 x Elta 10 Amp Electronic single phase speed controller.1 x NKS-D swirl diffuser v-300 x 300mm1 x PCA Diffuser - PCA-3152 x Electronic extractor fan speed controller - FSC 1.51 x JSR 200 Painted RAL50181 x Elta 2 Amp Electronic single phase speed controller.2 x Push Timer Switch - ZA41 x Helios ZNE Electronic Fan Overrun Timer2 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Time Delay Unit - DT20B1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven2 x 7 Day Programmable TIMECLOCK1 x TTC-2000 Three phase electric heater controller1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x CONTROL ECOWATT - Basic2 x Remote controller FLEX - for VEKO INT2 x Helios TSW 7.5 Amp Transformer speed controller1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Isolator Switch - ISOSW1 x COM-31 x Envirovent G4 Filter - SL-G4/F71 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 Protection2 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Elta ACO Panel 149-ACO18B1 x EC-Vent Room Unit1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Three Phase Transformer controllers - RMT 1.5 Amp2 x Vent Axia ACM 100 inline mixed flow duct fan1 x BEAS-control module2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x MWS 1.5 – Transformer Controller With Motor Protection1 x Vent Axia T-Series Controller1 x Systemair Save Connect 2.0 Internet Module1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x EM30-24 Control Panel Commissioning Service1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x REB-CVF 0-10v Controller1 x Speed Controller - REB1-N2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Transformer (silent) speed controller - RE 3.0 Amp1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Transformer Speed Control - RTRE- 1.5Amp1 x MTS10- extractor fan 3 step switch1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Transformer 5 Speed Controller - ATC1-12TK1 x Vent Axia ACM 125 inline mixed flow duct fan1 x MTP 10, 10K, Speed control1 x PIR Sensor - PIR21 x Speed Controller - REB11 x QPTW 250C Acoustic Twin Fan with Controller1 x DEF-140T Inlet Guard for the CBT-100N1 x Elta Wall Cowl SWC56/631 x PIR Sensor - PIR41 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-2TK2 x Transformer 5 Speed Controller - ATC1-4TK1 x Helios HQW-630/4 - IP552 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Vent Axia Silent 100T (TIMER)1 x Elta Wall Cowl SWC35/402 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Temperature Fan Speed Controller - ATCP4-WMS1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x EC6H - Reversible Group Fan Electronic Controller1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x ENV 100 12v transformer SELV1 x CBM 9-9 550w 4P VR (Open Motor)1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x Elta Louvre Shutter - 400mm2 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x TG-K3/NTC10-01 - Duct temperature sensor1 x Elta Variable Speed Drive IP66 - 0.75KW1 x VTR 300 STD Filter Kit1 x Elta - Room Sensor - Temp/Humid/C021 x Elta Wall Cowl SWC45/50
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