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 Transformer (silent) speed controller - RE 1.5 Amp1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x DDMP 12-12 3F 1810W M6A4 DG01 x Vent Axia T-Series Controller2 x Bathroom Fan -Envirovent- Silent 100 T (Timer Model)4 x Airvent ceiling fan controller2 x Elta Variable Speed Drive IP66 - 0.75KW1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x MEV Spider Wireless boost Switch - MEV-SWH-W2 x Transformer (silent) speed controller - RE 3.0 Amp1 x Helios HQW-200/4 - IP551 x Transformer Speed Control - RTRE- 1.5Amp1 x TG-K3/NTC10-01 - Duct temperature sensor2 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)2 x Silent 100 Window Kit - windowS2 x CBA-60 Inlet Flange for CBT-601 x MTS10- extractor fan 3 step switch2 x REB-CVF 0-10v Controller4 x PIR Sensor - PIR21 x Electronic extractor fan speed controller - FSC 1.52 x Helios HQW-250/4 - IP553 x QPTW 250C Acoustic Twin Fan with Controller2 x TD Mixvent 800/200 EEXEIIT31 x Remote Timer Control - 13512 x Speed Controller - REB51 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x EC6H - Reversible Group Fan Electronic Controller2 x TG-R room temperature sensor1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x UB47- Universal Insulated Terminal1 x Compact SCD450/4-1AC2 x MTP 10, 10K, Speed control1 x Skyflow SSR Horizontal Roof Cowl SSR31/35BS1 x PIR Sensor - PIR41 x 220x90mm Insulated Rectangular Horizontal 90° Bend2 x Transformer Speed Control - RTRE- 12.0Amp1 x TG-K Duct temperature sensor1 x Isolator Switch - EFF-ISO1 x SG-200 Fan Guard for the HQW 2001 x VTR 300 STD Filter Kit1 x 220x90mm Insulated Rectangular Horizontal 45° Bend1 x ELM 18 EX Flexible Cuff for ERM 181 x FRQ5-10A Inverter Speed controller3 x Vent Axia Silent 100T (TIMER)1 x 220x90mm Insulated Rectangular Vertical 45° Bend1 x Helios PU10 Speed Potentiometer (Flush Mounted)1 x Helios TSW 1.5 Amp Transformer speed controller1 x RD35S-4DW.6W.3L - 122297 (Three Phase)2 x Elta - Room Sensor - Temp/Humid/C021 x Three Phase 3 step - 10amp Transformer controller for use with the HV Wall Mounted fans.1 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Speed Controller - REB2.5-N1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Vent Axia ACM 200 inline mixed flow duct fan1 x RDH FLEX-SQUARE - ADH/RDH 04501 x DEF-CBM-RE-7 - Protection Guard1 x Transformer Speed Control - RTRE- 7.0Amp1 x EBM-Papst D4E225-BC01-17 Double inlet1 x GXC6EC - High Performance Extract Fan1 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x SPI-100 C Iris damper1 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x 220x90mm Insulated Rectangular Vertical 90° Bend1 x Duct Termination with Mesh - 355mm1 x Flat Roof Terminal -OFT 5 - Asphalt1 x Mini Diffuser - 100mm1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x Vent Axia SC5001 - Speed controller1 x Two Speed Switch - REGUL-21 x Transformer Speed Control - RTRE- 5.0Amp1 x 204x60mm Insulated Rectangular Vertical 45° Bend1 x Helios HQW-315/4 - IP551 x GRA-100 External Grill by S&P1 x Speed Controller - REB1-N1 x CBT-100N Centrifugal1 x EBM-Papst D3G133-BF05-14 Double inlet1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x Transformer (silent) speed controller - RE 5.0 Amp1 x CK-60F Kit1 x Elta Louvre Shutter - 400mm1 x CBM 9-9 550w 4P VR (Open Motor)1 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x Contactor Interface Station - CI91 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x Transformer 5 Speed Controller - ATC1-4TK2 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 1.5KW3 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x DS-2 2-Speed Switch (3 Phase)1 x DA9/9-NT1 x Duct Termination with Mesh - 450mm1 x Elta Wall Cowl SWC25/311 x AIRVENT speed control - AIR4019611 x DDMP 07/07 Mounting Flange1 x ACO8AC/EC AutoChangeover panel1 x Silent 300 CZ Design PLUS Extractor Fan1 x Elta Wall Cowl SWC45/501 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Elta 6 Amp Electronic single phase speed controller.
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