• Model:DAOSL

DAOSL Back Draft Damper

£ 10.53 (excl. VAT)

£ 12.64 (inc. VAT)

DAOSL Back Draft Damper 1
The DAOSL back draft damper has aluminium lamellae which open during the air flow in one direction and close when the fan motor is inactive. When no air is flowing, the lamellae are maintained in a vertical position using a spring. The damper is supplied with double EPDM gasket.

Available sizes - 100m and 125mm, Please select above..
NB. 100mm and 150mm out of stock until mid February. Try the BDP

Look good, works well, except the shaft of the lanellae cuts into the tube or pipe. Had to shorten mine to get it in. The shaft should not be longer that the seals diameter.

Rated by Trevor

Thank you for the review. The shaft length is not normally a problem because they are normally used to join two lengths of ducting and are not designed to be fully inserted, although it is interesting you have managed it! Be aware any extra friction on the shaft will affect its operation.
- Admin

Available Options

Customers also purchased...

Spiral Ducting 1 meter - 100mm
Spiral Ducting 1 meter - 100mm
£ 7.20
View
Male Ducting Connector - 100mm
Male Ducting Connector - 100mm
£ 2.99
View
Female Ducting Connector - 100mm
Female Ducting Connector - 100mm
£ 3.14
View
Flanged Spigot - 100mm
Flanged Spigot - 100mm
£ 2.50
View
Shop by price
Shopping Cart
1 x Helios HQW-560/4 - IP553 x FedEx TEN AM delivery Surcharge1 x Heat Resistant In-line Axial Fan - VOK 150/120 H2 x AM pallet Delivery Surcharge1 x Transformer (silent) speed controller - RE 1.5 Amp1 x HCFT/4-560mm plastic impeller plate fan1 x Elta SPA560/46-3AC - IP541 x Universal Pipe Fixing Clip1 x HXP560/6-3 - 6 Pole - Three Phase1 x Stainless Duct Delivery Charge (Standard 1 x 3m)1 x Duct Quick Suspension Rings with Clasp - 250mm1 x EuroSeries (ESP) - Plate Mounted Axial Fans 560-34-B1 x MTP 10, 10K, Speed control1 x Spiral Rapid Lock Clamp - 250mm1 x CPTA-E Flush mounted PIR sensor with timer1 x Atex Motor Protection Switch - U-EK230E EX1 x Ecor Pro Humidistat - EPHUM24DF1 x HRB/6-560-35-APN-C1 x Clearflow CFHT Kitchen/High Temp Roof Fan - CFHT560/4-3AC1 x Presence Detector IR24-PC1 x HCFB/4-560-H-A1 x Northern Ireland Surcharge1 x Manrose Humidistat - 13611 x Ducting 15 Degree Bend - 250mm2 x Pallet Delivery Surcharge1 x Acoustic Box Fans (Inline) - CAB-1001 x 220x90mm 90 Degree Horizontal Bend1 x Elta SPA560/4-1AC - IP541 x DPD SAT Delivery Surcharge1 x Direct Saturday Delivery Surcharge1 x MV-Silent 250 Bathroom Extractor Fan Kit - Timer1 x Ducting 90 Degree Bend - 250mm1 x European Pallet Delivery Surcharge1 x SCHT-AD Intelligent elements for demand controlled ventilation1 x R.O.I Customs Charge for Pallet Deliveries1 x Elta 6 Amp Electronic single phase speed controller.1 x HCFB/4-355mm plastic impeller plate fan1 x Pre 10:30 Delivery Surcharge1 x Speed Controller - REB11 x Acoustic Box Fans (Inline) - CAB-315 RE1 x Same Day Shipping Surcharge1 x Differential Pressure Switch - 50 - 500 Pa - IP651 x ELTA - Single Phase Transformer 2amps1 x Additional shipping charge for offshore islands1 x Spiral Ducting Additional Courier Surcharge
£ 12,903.70
Best sellers
Backdraft Dampers - BDP Single Blade Regulating Dampers - SB- S & P Backdraft Damper - MCA DAOSL Back Draft Damper Multileaf Volume Control Dampers - Circular Spigoted Case - MVCD Multileaf Volume Control Dampers -600/600 Rectangular Flanged Multileaf Volume Control Dampers -500/500 Rectangular Flanged TUNE-R-100-2-M1 - Control Damper
Specials
Hydor Typhoon Circulation Fans - HVFB - 450mm
Hydor Typhoon Circulation Fans - HVFB - 450mm
£ 69.00 now £ 47.50
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 ...