• 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 CBM 15/15 6p 3phase 2.2kw1 x Elta SLC450/2-1AC - IP551 x Elta SLC450/4-1AC - IP551 x TTC-2000 Three phase electric heater controller1 x Floor Standing Cooler Fan- SRC-4501 x BD7/7 centrifugal M4 0.13Kw - Galvanised Impeller - MBI Assembled1 x KVK SLIM 400 EC - Centrifugal Circular Duct Fan1 x CBM 12/9 736W 6PT C - Closed Motor1 x EM30-24 Electro-Mechanical Control Panel1 x FAST-TRACK RANGE 75mm - Adjustable Air Restrictor1 x KD 250 L1 Circular duct fan1 x EKHR 280-2SW BCMI1 x 110 x 54mm Flat Channel Clip (Pack Of 5)1 x Rectangular Airbrick Adaptor1 x CBM 10/8 6P 245W RE VR1 x FAST-TRACK RANGE 75mm - Semi-Rigid Duct 50M1 x FAST-TRACK RANGE 75mm - Valve Adaptor 90° 125mm1 x CAB-400 ECOWATT Energy Efficient Acoustic Box Fan1 x Quietflow SQS400-1ECL - Centrifugal Box Fan1 x 110 x 54mm Equal Horizontal T-Piece1 x TD1300 Mixvent - 250mm1 x 110 x 54mm Low Profile Plastic Ducting - 1 Meter1 x Revolution SLCX ATEX Long Cased Axial Flow Fan SLCX500/4-3 Three Phase1 x CC-ATEX 404 B M Short Cased Axial Fan1 x Duct Termination with Mesh - 100mm1 x MV EC 150 Multivent1 x Ancillary Pack for SLC-900 for SLC900/4A-3AC and SLC900/8-3AC1 x Belt Drive Cased Axial Fan - 560mm - H version1 x Belt Drive Cased Axial Fan - 560mm - L version1 x Ancillary Pack for SLC-900 for SLC900/4B-3AC1 x PRIO-160 160mm Inline Mixvent Fan1 x Elta Unpodded Silencer Melinex 2D-560mm1 x Raptor SDA500/46-3AC1 x Ancillary Pack for SB-Biflow 500 model1 x Belt Drive Cased Axial Fan - 630mm - L version1 x Duct Mounted Filter Box - G4 Grade Panel - 200mm1 x KVK SLIM 125 EC - Centrifugal Circular Duct Fan1 x Ducting T Piece Equal - 100mm1 x Acopel F400-500/1601 x Ancillary Pack for SDA350/4-1EC1 x HRT/4-630/25-APN C21 x Etamaster EM 150 L EC 01 inline mix-vent fan1 x HRT/4-630/25-BPN E221 x Gorilla HVLSX501 x KVK Slim 315 - Low profile Semi Acoustic Box Fan1 x Elta Turboflow-TF - 500mm(B) - Three phase1 x Acopel F400-800/1801 x Belt Drive Cased Axial Fan - 900mm - H version1 x HRB/6-630-30-BPN1 x Ancillary Pack for SLC-710 for 4 pole Motors1 x JETLINE-150 - In Line Centrifugal Duct Fan1 x Duct Suspension Rings - 80mm
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