• 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 Elta Variable Speed Drive IP66 - 2.2KW1 x Elta Variable Speed Drive IP66 - 7.5KW1 x FU 15 40 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x FU 22 25 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 0.75KW1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FRQ5-10A Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Frequency converter RUCK - FU 075 201 x ELTA - Three Phase Transformer 3amps1 x ATEX rated 3-phase Speed Control - R-DK4 KT (EX)1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x Elta 10 Amp Electronic single phase speed controller.1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x FU 075 04 Frequency Inverter (IP20)1 x ELTA - Three Phase Transformer 10amps1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x ELTA - Single Phase Transformer 2amps1 x NKS-D swirl diffuser v-300 x 300mm1 x Balance S Diffuser - NO RING - 125mm1 x Electronic extractor fan speed controller - FSC 1.51 x EC6H - Reversible Group Fan Electronic Controller1 x Circular Ceiling Diffuser - TST 1001 x PCA Diffuser - PCA-3151 x Elta 2 Amp Electronic single phase speed controller.1 x Curved Blade Grille 600x600 (2way blow)1 x Airvent ceiling fan controller1 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 12amps1 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 Circular Ceiling Diffuser - TST 2001 x ELTA - Single Phase Transformer 16amps1 x ELTA - Single Phase Transformer 8amps1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x COM-31 x Circular Ceiling Diffuser - TST 1601 x Round ceiling diffuser 400mm1 x ELTA - Single Phase Transformer 4amps1 x AIRVENT speed control - AIR4019611 x Round ceiling diffuser 200mm1 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 10amps1 x Round ceiling diffuser 350mm1 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x Elta Louvre Shutter - 400mm1 x GRA-100 External Grill by S&P1 x Elta Wall Cowl SWC35/401 x Elta Wall Cowl SWC25/311 x Elta Wall Cowl SWC45/501 x Jet Cowl - 315mm1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 7101 x FlameProof Plate Axial Fan - Single Phase - 15 inches - Eexd IIC T4 -4pole
£ 31,272.79
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-2 120/50 - 0,09Kw - LG270 Single inlet centrifugal fan direct driven
CMT-2 120/50 - 0,09Kw - LG270 Single inlet centrifugal fan direct driven
£ 494.68 now £ 424.00
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%...