• 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 Helios TSD 3.0 Transformer Speed Control (400v)1 x FU 15 40 Frequency Inverter1 x FRQ-10A V2 Inverter Speed controller1 x FU 075 52 Frequency Inverter (IP20)1 x FRQ5-4A V2 Inverter Speed Controller1 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 Elta Variable Speed Drive IP66 - 1.5KW2 x Frequency converter RUCK - FU 075 201 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 - 2.2KW (1ph to 3ph)1 x ELTA - Three Phase Transformer 10amps1 x ELTA - Three Phase Transformer 3amps1 x FU 22 04 Frequency Inverter1 x Frequency converter RUCK - FU 075 211 x Elta 10 Amp Electronic single phase speed controller.1 x FU 075 04 Frequency Inverter (IP20)1 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 Circular Ceiling Diffuser - TST 1251 x EC6H - Reversible Group Fan Electronic Controller1 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 1001 x Elta 2 Amp Electronic single phase speed controller.1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Curved Blade Grille 600x600 (2way blow)1 x ELTA - Single Phase Transformer 16amps1 x Circular Ceiling Diffuser - TST 2001 x Elta 3 Amp Electronic single phase speed controller.1 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x JSR 200 Painted RAL50181 x ELTA - Single Phase Transformer 12amps1 x Circular Ceiling Diffuser - TST 1601 x AIRVENT speed control - AIR4019611 x COM-31 x ELTA - Single Phase Transformer 4amps1 x Balance S Diffuser - NO RING - 100mm1 x EFSC-6N- Single Phase Speed Control1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm1 x Elta 6 Amp Electronic single phase speed controller.1 x PCA Diffuser - PCA-2501 x ELTA - Single Phase Transformer 10amps1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x Elta Variable Speed Drive IP66 - 2.2KW1 x Two Speed Switch - REGUL-21 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Remote controller FLEX - for VEKO INT1 x Vent Axia ACM 150 inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK1 x Transformer 5 Speed Controller - ATC1-8TK1 x Transformer 5 Speed Controller - ATC1-4TK
£ 25,928.41
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

Incredible, Perfect, Silent and Fast delivery ! Thanks "Just...