Non Return Valves & Shutters
Non Return Shutters
Displaying 1 to 16 (of 16 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...
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 16 (of 16 products)
1 x RTRD - Three Phase Speed Controller - 2 Amp1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x RTRD - Three Phase Speed Controller - 4 Amp1 x AW 355 D4-2-EX Explosion Proof Axial Fan - ATEX1 x Helios HQW-200/2 - IP551 x Envirovent G4 Filter - SL-G4/F71 x Elta Wall Cowl SWC56/631 x Eco-Loft Positive Input Ventilation System - PIV Loft Mounted -EVL-HAS1 x PPF4 - Positive Pressure Supply Fan1 x MEV 160 & 300 Additional Spigots1 x Cased Axial Fan Extension - 400mm dia1 x GEO Ground Source Heat Exchanger1 x Casals Circular Outlet Connection Flange - 5102018031 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 500mm1 x AKOR Spare Filter1 x EnergiSava 210 Low Energy Heat Recovery Unit1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 710mm1 x CBA-160 Inlet Flange for CBT-1601 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 630mm1 x CBS-130 Outlet Flange for CBT-1301 x Akor Controller Switch1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 400mm1 x AKOR GD - Spare Motor1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 355mm1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 450mm1 x ASF 355-500 inlet flange DVS1 x CAD-COMPACT 900 ADVANCED N8 - MVHR unit1 x GENIOX 11 Roof Mounted External Unit1 x Genius Whole house unit -1 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 315mm1 x CBS-100 Outlet Flange for CBT-1001 x A Duct Mountable - Double Drilled Fixing Flange (PAIR) - 560mm1 x Duct Tape - Temperature-resistant flexible sealing Duct Tape - 50 Mtr1 x AKOR T3/7 Spare Motor1 x EnergiSava 260 Compact Heat Recovery unit - ESAVA2601 x Elta Wall Cowl SWC35/401 x G4 extract filter for IDEO HR unit1 x AKOR Mounting Plate for GD model(VIM166423)1 x filter pack (set of 2) pt no. 4438891 x F7/G4 supply filter kit for IDEO HR unit1 x GENIOX 11 Internal Mounted Unit1 x CADB/T-HE PRO-REG Series1 x CADB/T-HE 54 ECOWATT Series1 x Soler & Palau - HCBT/4-800/H - IP551 x Soler & Palau - HXTR/2-250/H - IP441 x Soler & Palau - HXBR-250 ECOWATT - IP441 x Soler & Palau - HXTR/6-800/H - IP541 x HCFT/4-800/H Plastic impeller plate fan - 800mm1 x Helios HQW-250/4 - IP551 x HCFT/4-250mm plastic impeller plate fan1 x Hydor HPA250/2-11 x Elta SCP250-1EC - IP551 x Soler & Palau - HXTR/12-800/28-A1 x Soler & Palau - HCBT/4-800/H-B FLOW ( Supply Air Fan) - IP551 x HRST/6-800/28-AQ1 C21 x Helios HQW-250/2 - IP551 x Rotorex HXBR 250mm Plate Axial Fan - Single Phase (2-pole)1 x AW Sileo EC Plate Axial Fan - Three Phase - 800mm1 x HV Wall Mounted Belt Drive Fan 800mm 220V to 240V / 50Hz 0.75kW - Single Phase1 x HRST/6-800/28-BZ-68 (400V50)C1 x Spiral Ducting 3 Meters - 900mm1 x Soler & Palau - HXBR/4-250/H - IP441 x Elta SCP250/4-1AC - IP551 x Elta SPA250/4-1AC - IP441 x HRB/2-250-AMPN1 x HV Wall Mounted Belt Drive Fan 800mm 400V / 50Hz 0.75kW - Three Phase1 x Elta SCP800/6/8-3AC - IP551 x Female Ducting Connector - 900mm1 x Soler & Palau HXM-250mm1 x EBM PAPST - A2E250-AE65-02 Axial fan1 x Helios GigaBox 500mm GBW 500/4 centrifugal1 x Hydor HPA250/4-11 x Soler & Palau - HXTR/4-250/H - IP441 x Helios - HQD 250/21 x HRST/6-800/28-BZ1 x KABT/4- 9000/5001 x HRST/6-800/28-AQ C21 x Curved boot - 900mm1 x Soler & Palau - HCBT/6-800/H - IP651 x Elta SPA250/2-1AC - IP441 x Soler & Palau - HCBT/4-250/H - IP651 x Multiflow SMB500/4-1AC1 x HCFT/4-800/L Plastic impeller plate fan1 x Nicotra PFP A3-0500 3F 4100W M6H5 BQE1 x HRST/6-800/22-BZ-68-J C1 x Elta SCP250/4-3AC - IP551 x Spiral Ducting 1 Meters - 900mm1 x Helios GigaBox 500mm GBD 500/4/4 centrifugal1 x Male Ducting Connector - 900mm1 x Elta HXP 800mm 6-Pole (Three Phase)1 x HCFT/6-800-H plastic impeller plate fan1 x Soler & Palau - HCBT/2-250/H - IP651 x EMF 500-14 - ECO MIXED FLOW IN-LINE FANS1 x Spigot plate - 900mm1 x Ziehl-Abegg - RH50 V-ZIK.GG.1R1 x Spiral end cap - Female - 900mm1 x Prio 500 3 Phase - 230V or 400V - 50Hz1 x Etaline 500mm - D4 01 3 Phase1 x Wall Mounted Air Curtains - COR-N Series1 x Helios TSW 10 Amp Transformer speed controller1 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x Rectangular Airbrick Adaptor1 x REB-CVF 0-10v Controller
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Circular Inline Silencers - 0.6M long - SLU-600
£ 58.40
I have a loft mount extractor fan which was very noisy. I ...