• Model:DAOSL

DAOSL Back Draft Damper

£ 11.49 (excl. VAT)

£ 13.79 (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, 125mm, 150mm, 200mm, 250mm, 315mm,

Please select below..

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...

Metal Inline Fan - VENT-200NK
Metal Inline Fan - VENT-200NK
£ 144.70
View
Spiral Ducting 1 meter - 200mm
Spiral Ducting 1 meter - 200mm
£ 20.01
View
Spigot plate - 200mm
Spigot plate - 200mm
£ 30.90
View
Duct Tape - Temperature-resistant flexible sealing Duct Tape - 50 Mtr
Duct Tape - Temperature-resistant flexible sealing Duct Tape - 50 Mtr
£ 2.79
View
Shop by price
Shopping Cart
1 x RTRDU 3 Phase Trickle & Boost 5 Step Speed Controller - 2 Amps1 x DPD 12PM Delivery Surcharge1 x ECO dMEV+ HT - 17V1 x Soler & Palau - HCBT/4-250/H - IP651 x Elta SCP710/6/8-3AC - IP551 x DDMP 10-08 FLANGE1 x Stainless Steel Male Connector - 315mm1 x Stainless Steel Male Connector - 400mm1 x Female Ducting Connector - 800mm1 x Ducting Reducers Long - 300mm-250mm1 x Commercial Thermostat - TH161 x FSD-TD Fire and Smoke Damper, 800mm x 450mm, EASY FIX AF, GALV Case, GALV Blades, PM230-TF1 x EBB-175 T DESIGN Centrifugal Extractor Fan1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 15 40 Frequency Inverter1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FRQ-10A V2 Inverter Speed controller1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x Elta Variable Speed Drive IP66 - 4.0KW1 x FRQ5-10A Inverter Speed controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x Elta 10 Amp Electronic single phase speed controller.1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x NKS-D swirl diffuser v-300 x 300mm1 x ELTA - Single Phase Transformer 2amps1 x Circular Ceiling Diffuser - TST 1251 x Electronic extractor fan speed controller - FSC 1.51 x Balance S Diffuser - NO RING - 125mm1 x PCA Diffuser - PCA-3151 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1001 x Circular Ceiling Diffuser - TST 2001 x Curved Blade Grille 600x600 (2way blow)1 x Round ceiling diffuser 400mm1 x Elta 3 Amp Electronic single phase speed controller with TK1 x JSR 200 Painted RAL50181 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Circular Ceiling Diffuser - TST 1601 x ELTA - Single Phase Transformer 16amps1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller.1 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 8amps1 x Airvent ceiling fan controller1 x Balance S Diffuser - NO RING - 100mm1 x ELTA - Single Phase Transformer 12amps1 x Round ceiling diffuser 200mm1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Round ceiling diffuser 300mm
£ 29,406.26
Best sellers
Backdraft Dampers - BDP Single Blade Regulating Dampers - SB- DAOSL Back Draft Damper S & P Backdraft Damper - MCA TUNE-R-315-3-M0 - Control Damper (NO ACTUATOR) Multileaf Volume Control Dampers - Circular Spigoted Case - MVCD Multileaf Volume Control Dampers -600/600 Rectangular Flanged Multileaf Volume Control Dampers -500/500 Rectangular Flanged
Specials
CMT-2 180/75 0.75KW - Single inlet centrifugal fan with inlet and outlet flange connections - 200mm
CMT-2 180/75 0.75KW - Single inlet centrifugal fan with inlet and outlet flange connections - 200mm
£ 1,272.23 now £ 999.00
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Unbelievable! With TDmixvent500: noise reduction minimum 50%...