Non Return Valves & Shutters

Non Return Shutters

Displaying 1 to 14 (of 14 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...
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans
£ 435.00
JCA-1100 - Back Draft Shutter for CRHB/CRHT Roof Fans...
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 14 (of 14 products)
1 x Spiral Ducting 3 Meters - 200mm1 x Anti Vibration Mounts - Small - Pack of 4 - AVM21 x 204x60mm to 125mm Insulated Straight Adapter1 x Ducting 90 Degree Bend - 125mm1 x Spiral Ducting 1 meter - 80mm1 x Round ceiling diffuser 250mm1 x PCA Diffuser - PCA-3151 x Duct Suspension Rings - 80mm1 x Female Ducting Connector - 80mm1 x Spiral end cap - 80mm1 x CTVB/4-315 Kitchen/High Temp Roof Fan1 x Male Ducting Connector - 80mm1 x NKS-D swirl diffuser v-300 x 300mm1 x 125mm Round Condensation Trap1 x AIRVENT speed control - AIR4019611 x HPA Heavy Duty Flexible Ducting1 x Flexible PVC Ducting - 15 Mtr1 x Elta - SMT 125 Mixvent Inline Fan - Clearance Stock Line1 x FAST-TRACK RANGE 75mm - Straight Connector1 x Flexible PVC Ducting - 220x901 x FAST-TRACK RANGE 75mm - Adjustable Air Restrictor1 x FAST-TRACK RANGE 75mm - Semi-Rigid Duct 50M1 x FAST-TRACK RANGE 90mm - Semi-Rigid Duct 50M1 x Vent Axia SABRE Plate Mounted Sickle Fans - VSP500141 x 1mtr Round Ducting - 125mm1 x Duct Clamps box of 50 - 60mm - 170mm1 x Duct Suspension Rings - 450mm1 x Helios GigaBox 450mm GBD 450 centrifugal - EC Motor1 x 220 x 90mm Duct to Duct Connector for use with Insulated Thermal Ducting1 x 125mm Insulated 45 Degree Bend1 x 220x90mm Insulated Rectangular T-Piece1 x 204x60mm Insulated Rectangular Horizontal 90° Bend1 x 2mtr Insulated Round Ducting - 125mm1 x 204 x 60mm Duct to Fitting Connector for use with Insulated Thermal Ducting1 x DEF-140T Inlet Guard for the CBT-100N1 x 125mm Insulated 90 Degree Bend1 x 1mtr Insulated Round Ducting - 125mm1 x 220x90mm x 1m Insulated Rectangular Duct1 x Synthetic Air Filter Media - 6mm x 2mtr x 20mtr Roll1 x Metal Inline Fan - VENT-150NK1 x Synthetic Air Filter Media - 6mm x 1000mm x 1000mm1 x Soler & Palau TCBB/6-355/H - IP441 x Ducting 45 Degree Bend - 125mm1 x F7 Replacement Bag Filter for FT Filter Box Type 100-250mm ONLY1 x Synthetic Air Filter Media - 10mm x 2mtr x 10mtr Half Roll1 x Ducting Reducers Short - 315mm-250mm1 x TD6000 Mixvent - 400mm1 x Female Ducting Connector - 315mm1 x Multiflow SEL400/4-1AC1 x Metal Inline Fan - VENT-400N1 x EM 400 E4M 01 - Mixed Flow Duct Fan - 400mm1 x Metal Inline Fan - VENT-400K - T (3 Phase)1 x Etaline 400mm D2-01 3-phase1 x Singleflow SSDL315-1EC1 x Acoustic Box Fans (Inline) - CAB-315 RE1 x KVK Slim 315 - Low profile Semi Acoustic Box Fan1 x G2 duct Mounted Panel Filter - 435 x 435 x 47mm1 x QP315C Acoustic Fan - 315mm1 x Acoustic MiniBox Fan - MINI-BOX 3151 x HEATER BATTERY+CONTROLS 315 DIA 1 PHASE 4/8kW1 x Vent Axia SABRE Plate Mounted Sickle Fans - VSP31514
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 ...