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...
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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 FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Airvent ceiling fan controller4 x Speed Controller - REB104 x Transformer Speed Control - RTRE- 7.0Amp3 x Elta Variable Speed Drive IP66 - 0.75KW2 x MEV Spider Wireless boost Switch - MEV-SWH-W2 x Quietflow SQS400-1ECL - Centrifugal Box Fan3 x Helios HQW-200/4 - IP551 x Remote Timer Control - 13511 x Multiflow SMB550/4-1AC5 x Commercial Single or 3 phase Fan Reversing Switch - RS13 x 7 Day Programmable TIMECLOCK1 x TG-K3/NTC10-01 - Duct temperature sensor2 x Isolator Switch - EFF-ISO1 x Transformer (silent) speed controller - RE 3.0 Amp1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3555 x Helios HQW-315/4 - IP554 x MTP 10, 10K, Speed control1 x EC6H - Reversible Group Fan Electronic Controller2 x Speed Controller - REB54 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x CBA-60 Inlet Flange for CBT-603 x Elta Variable Speed Drive IP66 - 2.2KW1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.2 x TG-R room temperature sensor4 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)4 x REB-CVF 0-10v Controller2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)1 x Vent Axia T-Series Controller2 x Speed Controller - REB1-N2 x CBM 9-9 550w 4P VR (Open Motor)3 x Transformer Speed Control - RTRE- 1.5Amp1 x Transformer Speed Control - RTRE- 12.0Amp4 x SG-200 Fan Guard for the HQW 2001 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS2 x EBM-Papst D4E225-BC01-17 Double inlet1 x Elta Wall Cowl SWC56/633 x MTS10- extractor fan 3 step switch1 x Vent Axia Silent 100T (TIMER)1 x TD Mixvent 800/200 EEXEIIT31 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x TUNE-R-200-3-M1 - Control Damper2 x Transformer (silent) speed controller - RE 5.0 Amp2 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x QPTW 250C Acoustic Twin Fan with Controller1 x Speed Controller - REB81 x Helios TSW 7.5 Amp Transformer speed controller1 x RDH FLEX-SQUARE - ADH/RDH 04502 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR5 x Helios HQW-250/4 - IP551 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x RDS 11 Helios Transformer Controller With Motor Protection1 x REE-2 Electronic Speed Controller3 x PIR Sensor - PIR21 x Vent Axia ACM 200 inline mixed flow duct fan1 x Helios TSW 1.5 Amp Transformer speed controller1 x MWS 1.5 – Transformer Controller With Motor Protection3 x DDMP 12-12 3F 1810W M6A4 DG01 x HIMF - Mixed Flow Fan 100mm Inline Fan1 x Elta 10 Amp Electronic single phase speed controller.4 x Compact SCD450/4-1AC1 x GRA-100 External Grill by S&P1 x FRQ5-10A Inverter Speed controller2 x RD35S-4DW.6W.3L - 122297 (Three Phase)1 x Elta Wall Cowl SWC35/402 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x Speed Controller - REB12 x DDMP 10-08 3F 2210W M6A4 DG01 x Three Phase 3 step - 10amp Transformer controller for use with the HV Wall Mounted fans.1 x Elta Louvre Shutter - 400mm5 x Elta 6 Amp Electronic single phase speed controller.1 x Transformer 5 Speed Controller - ATC1-4TK1 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x WS - Reversing Switch from Helios Fans1 x Elta Wall Cowl SWC45/501 x Elta Wall Cowl SWC25/311 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x DEF-CBM-RE-7 - Protection Guard1 x EBM-Papst D3G133-BF05-14 Double inlet1 x UB47- Universal Insulated Terminal1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x Silent 100 Window Kit - windowS2 x CBT-100N Centrifugal1 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x PIR Sensor - PIR41 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x VTR 300 STD Filter Kit3 x CBA-100 Inlet Flange for CBT-1001 x ENV 100 12v transformer SELV1 x Vent Axia SC5001 - Speed controller1 x CBS-60 Outlet Flange for CSB/CBT-601 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x ELM 18 EX Flexible Cuff for ERM 181 x TG-K Duct temperature sensor1 x CBM Low Pressure Centrifugal Fan - CBM 10/8 4 Pole 373watt CVR1 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt C VR1 x Flat Roof Terminal -OFT 5 - Asphalt3 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost2 x Electrostatic Precipitator - 1H x 3W1 x SPI-100 C Iris damper1 x CBS-100 Outlet Flange for CBT-1002 x Transformer 5 Speed Controller - ATC1-2TK1 x Duct Termination with Mesh - 355mm1 x CBM Low Pressure Centrifugal Fan - CBM 7/7 6 Pole 72watt CVR
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Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29
Unbelievable! With TDmixvent500: noise reduction minimum 50%...