• Model:DAOSL

DAOSL Back Draft Damper

£ 10.53 (excl. VAT)

£ 12.64 (inc. VAT)

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

1 x Raptor SDA350/4-1AC1 x Economy Airvent 150mm Fan With Pullcord & Shutters1 x Soler & Palau TCBB/6-355/H - IP441 x Flanged Spigot - 125mm1 x Helios GigaBox 355mm GBD 355/4/4 centrifugal1 x Metal Inline Fan - VENT-100NK1 x Soler & Palau TCBT/4-355/H - IP441 x Ducting 45 Degree Bend - 125mm1 x Anti Vibration Duct Suspension Rings - 125mm1 x Economy Airvent 100mm Fan with Timer/Humidistat/Pullcord1 x Soler & Palau TCBT/6-355/H - IP441 x Ducting 90 Degree Bend - 1000mm1 x Ducting 15 Degree Bend - 125mm1 x AL 355 D2 01 - High Performance Long Cased Axial Fan1 x Helios HRFW 355/4 TK1 x Capacitor 6uf for use with the EBM D4E range1 x Ducting 45 Degree Bend - 1000mm1 x Ducting 90 Degree Bend - 125mm1 x Ducting Y Piece - 125mm1 x Spiral Ducting 3 Meters - 1000mm1 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x Elta SLC355-1EC -IE5 Motor- IP551 x DV-ROF-V-225 Roof mounted unit1 x HIMF - Mixed Flow Fan 100mm Inline Fan1 x Duct Fast Clamps - 125mm1 x AMD 355/2/2 High Pressure Long Cased Axial Fan1 x AMCL1002 - LPHW coil only1 x Spiral end cap - 125mm1 x Capacitor 20uf for use with the EBM D2E range1 x FN091-SDK.6N.V7P21 x Ducting T Piece Equal - 125mm1 x Ducting Reducer Long - 1000mm to 900mm1 x Duct Suspension Rings - 125mm1 x Spiral Ducting 3 Meters - 125mm1 x HIMF - Mixed Flow Fan 150mm Inline Fan1 x Ducting 15 Degree Bend - 1000mm1 x CRBB/4-355/112D PRMI 230v1 x Helios HRFW 355/2 TK1 x Helios VARD 355/2/2-TK1 x DV-ROF-V-315 Roof mounted unit1 x DS-2/2 2-Speed Switch IP54 (Single Phase)1 x AXC 355-6/19°-2(B)-P (0.75 kW) - Smoke Extract Fan1 x Soler & Palau TCBT/6-800/H - IP651 x Stainless Steel IL Flanged Spigot-300mm1 x 7-Day Digital Time Switch - TCK7D-6A1 x FSAF1250C1DA Silencer 1320/201 x Push Timer Switch - ZA41 x Metal Inline Fan - VENT-355N
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