• 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...

TD500 Mixvent - 150mm - TD500
TD500 Mixvent - 150mm - TD500
£ 182.84
View
220x90mm Rectangular to 150mm Round Adaptor
220x90mm Rectangular to 150mm Round Adaptor
£ 13.41
View
Sauna & steam 12V room fan
Sauna & steam 12V room fan
£ 69.00
View
110 x 54mm Low Profile Plastic Ducting - 2 Meter
110 x 54mm Low Profile Plastic Ducting - 2 Meter
£ 9.32
View
Shop by price
Shopping Cart
1 x DDMP 09-09 3F 2130W M6A4 DG04 x Helios HQW-200/4 - IP551 x Multiflow SMB550/4-1AC1 x TG-K3/NTC10-01 - Duct temperature sensor1 x TUNE-R-200-3-M1 - Control Damper2 x Vent Axia Silent 100T (TIMER)1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B4 x Elta Variable Speed Drive IP66 - 2.2KW1 x Transformer (silent) speed controller - RE 5.0 Amp2 x PIR Sensor - PIR21 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR2 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x ENV 100 12v transformer SELV1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Isolator Switch - EFF-ISO1 x Transformer 5 Speed Controller - ATC1-2TK1 x TG-R room temperature sensor1 x KKS 100 silencer-section - For use with the MUB 100 size Fans.1 x Vent Axia ACM 200 inline mixed flow duct fan1 x Transformer Speed Control - RTRE- 5.0Amp1 x DDMP 09/09 Mounting Flange1 x Elta Wall Cowl SWC35/401 x CBT-100N Centrifugal1 x FRQ5-10A Inverter Speed controller1 x Contactor Interface Station - CI92 x SG-200 Fan Guard for the HQW 2001 x REB-CVF 0-10v Controller1 x GRA-100 External Grill by S&P2 x Speed Controller - REB52 x Elta 6 Amp Electronic single phase speed controller.1 x Helios TSW 7.5 Amp Transformer speed controller1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Speed Controller - REB161 x VEKA INT 2000/15.0-L1 EKO1 x GXC6EC - High Performance Extract Fan2 x Transformer Speed Control - RTRE- 1.5Amp1 x Elta Wall Cowl SWC45/501 x TG-K Duct temperature sensor2 x Transformer Speed Control - RTRE- 7.0Amp1 x Remote controller FLEX - for VEKO INT1 x MEV Spider Wireless boost Switch - MEV-SWH-W1 x DDMP 10-08 3F 2210W M6A4 DG01 x PIR Sensor - PIR41 x Elta Louvre Shutter - 400mm2 x MTP 10, 10K, Speed control1 x DDMP 12-12 3F 1810W M6A4 DG01 x Speed Controller - REB1-N1 x UB47- Universal Insulated Terminal2 x Speed Controller - REB101 x Elta Wall Cowl SWC25/311 x Silent 100 Window Kit - windowS1 x Speed Controller - REB81 x Helios RR-250-C Centrifugal inline fan1 x Helios HQW-315/4 - IP551 x Speed Controller - REB2.5-N1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x ELM 18 EX Flexible Cuff for ERM 181 x CBM 9-9 550w 4P VR (Open Motor)1 x CBM Low Pressure Centrifugal Fan - CBM 12/12 6 Pole 736watt CVR1 x ACO8AC/EC AutoChangeover panel1 x SAVE VSR 300 heat recovery unit1 x QPTW 250C Acoustic Twin Fan with Controller
£ 32,549.85
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
H14 Hepa Portable Air Purifier - PAP 350 CA H14 with Carbon Filter
H14 Hepa Portable Air Purifier - PAP 350 CA H14 with Carbon Filter
£ 1,573.95 now £ 749.50
Reviews
DAOSL Back Draft Damper
DAOSL Back Draft Damper
£ 11.49

Look good, works well, except the shaft of the lanellae cuts...