Non Return Valves & Shutters

Non Return Shutters

Displaying 1 to 17 (of 17 products)
Backdraft Dampers - BDP
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
Backdraught Shutters 039-SFSV-63/71
£ 192.96
Backdraught Shutters 039-SFSV-63/71 Back draft shutter for SSRL 710...
BDS 200/250 RA b/d shutter
BDS 200/250 RA b/d shutter
£ 59.07
BDS 200/250 RA b/d shutter...
BDS 300/315 RA b/d shutter
BDS 300/315 RA b/d shutter
£ 72.20
BDS 300/315 RA b/d shutter...
BDS 350 RA b/d shutter
BDS 350 RA b/d shutter
£ 90.13
BDS 350 RA b/d shutter...
BDS 400/450 RA b/d shutter
BDS 400/450 RA b/d shutter
£ 95.33
BDS 400/450 RA b/d shutter...
BDS 500/560 RA b/d shutter
BDS 500/560 RA b/d shutter
£ 114.39
BDS 500/560 RA b/d shutter...
BDS 630/710 RA b/d shutter
BDS 630/710 RA b/d shutter
£ 144.13
BDS 630/710 RA b/d shutter...
BDS 800 RA b/d shutter
BDS 800 RA b/d shutter
£ 171.71
BDS 800 RA b/d shutter...
Flanged Damper 019-0250-STD
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
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
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...
Helios Condense Collector
Helios Condense Collector
£ 168.68
Helios Condense Collector...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 186.32
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
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
RSK355 - Back Draught Shutter
£ 82.95
Back Draught Shutter for duct installation Galvanized sheet steel housing Aluminium flaps ...
VKS 355-500 Automatic shutter
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 Speed Controller - REB52 x RDH FLEX-SQUARE - ADH/RDH 04505 x MTP 10, 10K, Speed control1 x Elta Louvre Shutter - 400mm2 x Silent 100 Window Kit - windowS2 x Elta Variable Speed Drive IP66 - 2.2KW2 x REB-CVF 0-10v Controller2 x Speed Controller - REB81 x TD Mixvent 800/200 EEXEIIT33 x PIR Sensor - PIR42 x SG-200 Fan Guard for the HQW 2001 x Speed Controller - REB102 x Vent Axia Silent 100T (TIMER)1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x VTR 300 STD Filter Kit2 x Silentub - STUB 1001 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR1 x EBM-Papst D3G133-BF05-14 Double inlet4 x QPTW 250C Acoustic Twin Fan with Controller4 x Speed Controller - REB11 x Elta Variable Speed Drive IP66 - 1.5KW1 x EBM-Papst D4E225-BC01-17 Double inlet3 x Helios HQW-250/4 - IP551 x Transformer Speed Control - RTRE- 1.5Amp1 x DA9/9-NT1 x TD160-NT Mixvent - 100mm - TD160 Timer4 x PIR Sensor - PIR22 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR2 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR2 x AIRVENT speed control - AIR4019611 x TUNE-R-200-3-M4 - Control Damper1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x Potentiometer EGH 01 - for DDMP Fans2 x DDMP 12-12 3F 1810W M6A4 DG01 x FRQ5-10A Inverter Speed controller1 x Jet Cowl - 315mm1 x Singleflow SSDL315-1EC1 x Elta - Room Sensor - Temp/Humid/C021 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR1 x TUNE-R-200-3-M1 - Control Damper1 x Compact SCD450/4-1AC1 x Speed Controller - REB1-N1 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x SAVE VSR 300 heat recovery unit3 x CBT-100N Centrifugal1 x DS-2 2-Speed Switch (3 Phase)3 x Elta 6 Amp Electronic single phase speed controller.1 x Contactor Interface Station - CI91 x ACO8AC/EC AutoChangeover panel1 x Speed Controller - REB161 x CBA-100 Inlet Flange for CBT-1001 x Helios ZNE Electronic Fan Overrun Timer1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x CBM Low Pressure Centrifugal Fan - CBM 9/9 4 Pole 550watt 3V (3-Speed)1 x IR24-P - Presence detector3 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x TG-K Duct temperature sensor1 x UB47- Universal Insulated Terminal1 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven1 x MTS10- extractor fan 3 step switch1 x CBP-18/18-RC Belt Driven Centrifugal Fans1 x RD35S-4DW.6W.3L - 122297 (Three Phase)
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40

I have a loft mount extractor fan which was very noisy. I ...