Non Return Valves & Shutters
Non Return Shutters
Displaying 1 to 17 (of 17 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...
Flanged Damper 019-0560-STD
£ 602.00
Flanged Damper 019-0560-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 17 (of 17 products)
1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x Vent Axia T-Series Controller1 x ACO 149-ACO1/EDV1 x BEAS-control module6 x Transformer (silent) speed controller - RE 3.0 Amp1 x KMBI 180 Connector rectangular/circular to install on the discharge of CMT1 x CS2 Current Switch3 x Elta 6 Amp Electronic single phase speed controller with TK2 x Helios HQW-630/4 - IP551 x EM30-24 Electro-Mechanical Control Panel1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection1 x REE-1 Electronic Speed Controller2 x Helios HQW-200/2 - IP551 x EC-Vent Room Unit3 x TG-K3/NTC10-01 - Duct temperature sensor2 x Single phase speed controller by auto-transformer - RMB 8.0 Amp4 x WS - Reversing Switch from Helios Fans4 x Helios HQW-200/4 - IP551 x CPTA-S PIR SENSOR Volt Free Contacts - Surface Mounted1 x Elta ACO Panel 149-ACO18B1 x Systemair Save Connect 2.0 Internet Module3 x MWS 1.5 – Transformer Controller With Motor Protection2 x Transformer (silent) speed controller - RE 1.5 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5002 x COM-32 x Transformer Speed Control - RTRE- 7.0Amp4 x Electronic extractor fan speed controller - FSC 1.52 x CBM 9-9 550w 4P VR (Open Motor)3 x Helios HQW-315/4 - IP552 x Quietflow SQS400-1ECL - Centrifugal Box Fan5 x Commercial Single or 3 phase Fan Reversing Switch - RS14 x Transformer Speed Control - RTRE- 1.5Amp2 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6302 x MTS10- extractor fan 3 step switch2 x Speed Controller - REB102 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Envirovent G4 Filter - SL-G4/F71 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x TG-K Duct temperature sensor1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x DEF-CBM-RE-7 - Protection Guard2 x Transformer 5 Speed Controller - ATC1-12TK2 x Transformer (silent) speed controller - RE 5.0 Amp2 x EBM-Papst D4E225-BC01-17 Double inlet1 x Remote Timer Control - 13511 x Two Speed Switch - REGUL-24 x Elta Variable Speed Drive IP66 - 0.75KW1 x Isolator Switch - EFF-ISO2 x Transformer Speed Control - RTRE- 12.0Amp2 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 200 inline mixed flow duct fan3 x Speed Controller - REB52 x REE-2 Electronic Speed Controller2 x Vent Axia SC5001 - Speed controller4 x QPTW 250C Acoustic Twin Fan with Controller2 x Elta 6 Amp Electronic single phase speed controller.3 x SG-200 Fan Guard for the HQW 2001 x Speed Controller - REB1-N1 x Elta Wall Cowl SWC56/632 x EBM-Papst D3G133-BF05-14 Double inlet2 x Multiflow SMB550/4-1AC4 x MTP 10, 10K, Speed control1 x TUNE-R-200-3-M1 - Control Damper4 x Speed Controller - REB11 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR2 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Speed controller with Reverse - REB-1R1 x 7 Day Programmable TIMECLOCK3 x REB-CVF 0-10v Controller3 x VTR 300 STD Filter Kit3 x DDMP 12-12 3F 1810W M6A4 DG01 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)2 x Transformer speed controller - ATC1 - 1.5 Amps1 x MEV Spider Wireless boost Switch - MEV-SWH-W3 x Elta Variable Speed Drive IP66 - 2.2KW3 x Airvent ceiling fan controller2 x Elta 10 Amp Electronic single phase speed controller.1 x RDH FLEX-SQUARE - ADH/RDH 04503 x Helios HQW-250/4 - IP554 x CBT-100N Centrifugal1 x GXC6EC - High Performance Extract Fan1 x ELM 18 EX Flexible Cuff for ERM 181 x Isolator Switch - ISOSW1 x Contactor Interface Station - CI91 x Transformer 5 Speed Controller - ATC1-2TK3 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x Vent Axia Silent 100T (TIMER)3 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan5 x PIR Sensor - PIR21 x ERR 20/1 Centrifugal inline fan1 x MV-B Dual Switch for use with Helios HQW plate fans,2 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x Elta - Room Sensor - Temp/Humid/C022 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x Elta Louvre Shutter - 400mm2 x Silent 100 Window Kit - windowS1 x CBM Low Pressure Centrifugal Fan - CBM 10/8 4 Pole 373watt CVR1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x TG-K Duct temperature sensor2 x Speed Controller - REB81 x ERR 31/1 Centrifugal inline fan1 x Elta Wall Cowl SWC45/501 x CBM 12-12 1100w 6P Three Phase2 x Potentiometer EGH 01 - for DDMP Fans1 x CMT-2 180/75 0.75KW - Single inlet centrifugal fan with inlet and outlet flange connections - 200mm2 x CBA-100 Inlet Flange for CBT-1002 x Elta Variable Speed Drive IP66 - 1.5KW1 x Jet Cowl - 315mm2 x AIRVENT speed control - AIR4019612 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x Lo-Carbon Silhouette 100T (Timer)3 x PIR Sensor - PIR41 x Round ceiling diffuser 200mm1 x Ancillary Pack for SLC-900 for SLC900/4A-3AC and SLC900/8-3AC1 x Duct Termination with Mesh - 355mm1 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x ACO8AC/EC AutoChangeover panel1 x Helios ZNE Electronic Fan Overrun Timer1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x Silentub - STUB 1001 x Silent 300 CZ Design PLUS Extractor Fan1 x Temperature Fan Speed Controller - ATCP4-WMS1 x TD Mixvent 1100/250 EEXEIIT31 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x Speed Controller - REB161 x VEKA INT 2000/15.0-L1 EKO1 x ELTA - Three Phase Transformer 3amps1 x SAVE VSR 300 heat recovery unit2 x UB47- Universal Insulated Terminal2 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Mini Diffuser - 100mm1 x Skyflow SSR Horizontal Roof Cowl SSR80B1 x FFR 355 Filter Cassette1 x Elta Variable Speed Drive IP66 - 4.0KW2 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x TUNE-R-200-3-M4 - Control Damper1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Singleflow SSDL315-1EC1 x Transformer Speed Control - RTRE- 5.0Amp1 x Speed Controller - REB31 x Elta Variable Speed Drive IP66 - 7.5KW1 x CBT-80N Centrifugal1 x Round ceiling diffuser 400mm1 x Comefri - TLZ 225 R - High Performance Scroll Fan1 x CBP-18/18-RC Belt Driven Centrifugal Fans1 x Control switch - CR1501 x Electrostatic Precipitator - 1H x 3W
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