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 Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 15 40 Frequency Inverter1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Frequency converter FU 075 14 - IP662 x Elta Variable Speed Drive IP66 - 0.75KW2 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x ELTA - Three Phase Transformer 10amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Elta 10 Amp Electronic single phase speed controller.1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x Balance S Diffuser - NO RING - 125mm1 x PCA Diffuser - PCA-3154 x Electronic extractor fan speed controller - FSC 1.51 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Curved Blade Grille 600x600 (2way blow)2 x EC6H - Reversible Group Fan Electronic Controller1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x Circular Ceiling Diffuser - TST 1601 x 5-Speed Controller for use with Elta SAX Classic Fans1 x ELTA - Single Phase Transformer 16amps1 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 Balance S Diffuser - NO RING - 100mm1 x ELTA - Single Phase Transformer 8amps3 x Elta 6 Amp Electronic single phase speed controller with TK1 x Round ceiling diffuser 200mm1 x ELTA - Single Phase Transformer 12amps1 x ELTA - Single Phase Transformer 4amps2 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm2 x COM-31 x EFSC-6N- Single Phase Speed Control2 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x ACO8AC/EC AutoChangeover panel2 x CONTROL ECOWATT - Basic1 x ACO 149-ACO1/EDV1 x EM30-24 Electro-Mechanical Control Panel1 x EC-Vent Room Unit1 x Elta ACO Panel 149-ACO18B1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection2 x Systemair Save Connect 2.0 Internet Module1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Easy-fix termination kit - High Rise Ventilator - EFT1 x EM30-24 Control Panel Commissioning Service1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x UB47- Universal Insulated Terminal1 x GRA-100 External Grill by S&P1 x Elta Louvre Shutter - 400mm1 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC45/501 x Elta Wall Cowl SWC25/311 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x Jet Cowl - 315mm1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Vent Axia ACM 100 inline mixed flow duct fan2 x Isolator Switch - ISOSW2 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)1 x BEAS-control module2 x MWS 1.5 – Transformer Controller With Motor Protection2 x Vent Axia T-Series Controller1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted2 x Speed Controller - REB51 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x Multiflow SMB550/4-1AC1 x Quietflow SQS400-1ECL - Centrifugal Box Fan2 x REB-CVF 0-10v Controller1 x Speed Controller - REB1-N1 x MTS10- extractor fan 3 step switch2 x PIR Sensor - PIR22 x PIR Sensor - PIR41 x Elta - Room Sensor - Temp/Humid/C021 x Compact SCD450/4-1AC1 x SAVE VSR 300 heat recovery unit1 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Remote controller FLEX - for VEKO INT1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-8TK2 x Helios TSW 3 Amp Transformer speed controller1 x Vent Axia ACM 150 inline mixed flow duct fan1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x RDS 11 Helios Transformer Controller With Motor Protection1 x Helios TSW 1.5 Amp Transformer speed controller1 x Vent Axia ACM 125 inline mixed flow duct fan1 x CS2 Current Switch1 x DEF-140T Inlet Guard for the CBT-100N2 x MWS 3 – Transformer Controller With Motor Protection2 x Speed Controller - REB2.5-N1 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x Helios TSW MCB Amp Transformer speed controller1 x TG-K Duct temperature sensor1 x CMT-2 200/80 1.1KW - Single inlet centrifugal fan direct driven3 x WS - Reversing Switch from Helios Fans1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT2 x Helios HQW-630/4 - IP551 x Remote Timer Control - 13511 x TG-K3/NTC10-01 - Duct temperature sensor1 x CBS-60 Outlet Flange for CSB/CBT-602 x Helios HQW-200/4 - IP551 x Helios HQW-200/2 - IP551 x EC-Vent control board1 x Transformer (silent) speed controller - RE 5.0 Amp2 x Helios HQW-315/4 - IP552 x Transformer (silent) speed controller - RE 3.0 Amp3 x MTP 10, 10K, Speed control1 x CBM 9-9 550w 4P VR (Open Motor)1 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x TG-R room temperature sensor1 x Silent 100 Window Kit - windowS1 x Transformer Speed Control - RTRE- 12.0Amp1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x QPTW 250C Acoustic Twin Fan with Controller2 x Helios HQW-250/4 - IP551 x VTR 300 STD Filter Kit1 x Mini Diffuser - 100mm1 x Contactor Interface Station - CI91 x DDMP 10-08 3F 2210W M6A4 DG0
Best sellers
