• 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 Mounting Feet (Pair) for SLC-630-060B-06301 x Jetflow-HIT Metal inline - 150mm1 x GXC9 - High Performance Extract Fan1 x Circ.connection-125 fo EX-140 ATEX unit1 x Access Door for Circular Duct - 300 x 200 - SIZE 351 x Versio Square Ceiling Diffusers - RS141 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF450/4-1AC - Single Phase1 x Elta Raptor SFB ATEX Plate Mounted Axial Fan- 650mm2 x Connection Lead for Td ecowatt & PIR sensor1 x Impeller Side Guard - 500mm1 x CBA-130 Inlet Flange for CBT-1302 x TD1300 Mixvent - 250mm2 x 100mm Round Wall Plate1 x Soler & Palau - HXBR-250 ECOWATT - IP441 x Etaline 250mm1 x KRJ - 280 Inlet Guard1 x DA12/9 Feet1 x Classic SAX30/12AR Window/Wall Mounted1 x HIMF - Mixed Flow Fan 100mm Inline Fan1 x CBT-100N Centrifugal1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Electronic extractor fan speed controller - FSC 1.51 x Manrose 150mm - XF150BTP1 x Elta Turboflow-TF - 560mm - Single phase1 x Manrose 150mm - XF150BP1 x Helios HQW-200/4 - IP551 x Elta Unpodded Silencer Melinex 2D-560mm1 x CBM 9-9 550w 4P CM 3-Phase - 51284180001 x Soler & Palau TCBB/4-560/L - IP651 x Elta Wall Cowl SWC25/311 x Acopel F400-400/1601 x 1mtr Round Ducting - 125mm1 x DryFan 8 - DH800 8 Litre Desiccant Dehumidifier1 x HRB/4-350-BPN1 x Floor Standing Cooler Fan- SRC-4501 x 125mm Wall Duct - 350mm1 x Chaysol SA 25/13 -single inlet centrifugal fan1 x CBT-130N Centrifugal ATEX II 2G Exe II T31 x 204x60mm Equal T Piece1 x 110 x 54mm Vertical 90 Degree Bend1 x Mounting Feet (pair) for SB-CON 2501 x Airbrick Grille with flange - 204 x 60mm1 x LV100-PS 12v Pullcord Operated Bathroom Fan1 x 150mm Round Connector with Damper1 x SG AW-710 BGr , RAL 90051 x Metal Inline Fan - VENT-355N1 x Soler & Palau TCBB/6-630/L - IP651 x Duct Wrap Insulation - AWDW25mm1 x Access Door 200mm x 200mm1 x Acopel F400-450/1601 x Duct Mounted Filter Box With G2 Paper AND Metal Washable Filter - 315mm1 x Soler & Palau TCBT/4-710/H - IP651 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF350/4-3AC - Three Phase1 x UB47- Universal Insulated Terminal1 x Soler & Palau - HCBT/6-630/H - IP651 x Elta SCP450-1EC - IP551 x Hydor Typhoon Circulation Fans - HVFB - 450mm1 x ELTA - Single Phase Transformer 8amps1 x CCZ-404-T (three Phase)1 x SWF-150 Sidewall Mounted Extractor Fan1 x ELTA - Three Phase Transformer 10amps1 x Mini Diffuser - 100mm1 x CBMT/Q 315-54 1 HEATER KIT1 x Acopel F400-800/1801 x Manrose T12 STANDARD Transformer- T12S1 x Duct Mounted Filter Box - G4 Grade Panel - 450mm1 x FLEX CONNECTOR FOR MFQ-560 FAN1 x TecFire Intumescent Damper - Rectangular 350x350mm1 x HRB/4-500-30-APNC1 x 204x60mm Rectangular to 100mm Round Adaptor1 x Chaysol SAP 18/8 1.5kW 700r.p.m. CC CW V5-single inlet centrifugal fan1 x Ancillary Pack for SLC-5601 x TD2000 Mixvent - 315mm1 x Access Door for Circular Duct - 280 x 80 - SIZE 101 x Metal Inline Fan - VENT-150NK1 x CBM-10/10 515 6P RE VR IP55 (230V50)F V51 x Elta SLC450-1EC -IE5 Motor- IP551 x Roof Axial Cowl - RAW450 in RAL9005 ( JET BLACK)1 x Access Door 450mm x 450mm1 x Woods HT40jm/16/2/5/201 x 220x90mm 45 Degree Vertical Bend1 x Ancillary Pack for SLC-710 for 6 Pole Motors1 x BDS 800 RA b/d shutter
Air Quality Sensor - AQS
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£ 98.29 now £ 65.00
Reviews
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Well made and robust, but it was not use for my application ...