Non Return Valves & Shutters

Non Return Shutters

Displaying 1 to 13 (of 13 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
£ 180.34
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
£ 56.26
BDS 200/250 RA b/d shutter...
BDS 300/315 RA b/d shutter
BDS 300/315 RA b/d shutter
£ 68.76
BDS 300/315 RA b/d shutter...
BDS 350 RA b/d shutter
BDS 350 RA b/d shutter
£ 85.84
BDS 350 RA b/d shutter...
BDS 400/450 RA b/d shutter
BDS 400/450 RA b/d shutter
£ 90.79
BDS 400/450 RA b/d shutter...
BDS 500/560 RA b/d shutter
BDS 500/560 RA b/d shutter
£ 108.94
BDS 500/560 RA b/d shutter...
BDS 630/710 RA b/d shutter
BDS 630/710 RA b/d shutter
£ 137.27
BDS 630/710 RA b/d shutter...
BDS 800 RA b/d shutter
BDS 800 RA b/d shutter
£ 163.53
BDS 800 RA b/d shutter...
Flanged Damper 019-0250-STD
Flanged Damper 019-0250-STD
£ 396.97
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...
Helios Condense Collector
Helios Condense Collector
£ 163.77
Helios Condense Collector...
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 177.45
JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Mounted Units...
VKS 355-500 Automatic shutter
VKS 355-500 Automatic shutter
£ 85.00
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 13 (of 13 products)
1 x HRFD 315/2 EX Atex Rated 315mm Cased Axial Fan 400v1 x AC03TO-ADS-VFS-EN-9A (Three Phase)1 x Acoustic Box Fans (Inline) - CAB-250N1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX630/4-3 Three Phase1 x 125mm Thermal Duct to Fitting Connector - SST-125-DFCON1 x 204x60mm to 125mm Insulated Straight Adapter1 x DS-2/2 2-Speed Switch IP54 (Single Phase)1 x TCBT/4-710/H EXDIIBT4 ATEX1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x ACO3/BD Changover Panel (Three Phase)1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX500/4-3 Three Phase1 x DS-2 2-Speed Switch (3 Phase)1 x IP65 Remote Speed Adjustment Station1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX450/4-3B Three Phase1 x 220 x 90mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x KVK Slim 250 - Low profile Semi Acoustic Box Fan1 x ISOR 250 EC 201 x 204 x 60mm Duct to Duct Connector for use with Insulated Thermal Ducting1 x 204x60mm Insulated Rectangular Vertical 90° Bend1 x Acoustic MiniBox Fan - MINI-BOX 2501 x 125mm Insulated 45 Degree Bend1 x Helios SB-250-C SilentBox Acoustic Inline Fan1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX560/4-3 Three Phase1 x HVWC800 WALL COWL - for use with the HV-800 belt driven fans1 x Duct Termination with Mesh - 500mm1 x Ducting Y Piece - 500mm1 x HCFB/4-630mm plastic impeller plate fan1 x EBM Papst W3G630-GG97-011 x HRT/6-630/25-BPN1 x Elta SCP630-1EC - IP551 x Elta SPA630/46-3AC - IP541 x Helios HQW-630/4 - IP551 x Elta SPA630/6-1AC - IP54
Reviews
Circular Inline Silencers - 0.6M long - SLU-600
Circular Inline Silencers - 0.6M long - SLU-600
£ 50.56

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