• Model:DAOSL

DAOSL Back Draft Damper

£ 11.49 (excl. VAT)

£ 13.79 (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, 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

1 x Control with reverse - CR3001 x REB-CVF 0-10v Controller1 x Speed Controller - REB11 x Potentiometer EGH 01 - for DDMP Fans1 x DDMP 07/07 Mounting Flange1 x CBA-80 Inlet Flange for CBT-801 x CAB-150 ECOWATT Energy Efficient Acoustic Box Fan1 x CAB-315 ECOWATT Energy Efficient Acoustic Box Fan1 x AL 315 EC 01 AXIALINE - High Performance Long Cased Axial Fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 1000mm1 x CAB-355 ECOWATT Energy Efficient Acoustic Box Fan1 x CRBB/3-250/084M EC 2H01 x CRBB/3-190/060M EC 1HO MP - External Rotor Motor Radial Fans1 x CAB-400 ECOWATT Energy Efficient Acoustic Box Fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 630mm1 x CAB-250 ECOWATT Energy Efficient Acoustic Box Fan1 x AW Sileo EC Plate Axial Fan - Three Phase - 710mm1 x CRBB/3-160/052M EC 1H0 MP - Radial Impeller - 160mm1 x AW Sileo EC Plate Axial Fan - Three Phase - 560mm1 x CAB-200 ECOWATT Energy Efficient Acoustic Box Fan1 x Small Centrifugal Fan - CBM/4-180/184-150 W1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x CAB-125 ECOWATT Energy Efficient Acoustic Box Fan1 x CRBB/3-190/060M EC 1LO BP16 - External Rotor Motor Radial Fans (MEV SPIDER REPLACEMENT MOTOR)1 x VEKA INT 2000/15.0-L1 EKO1 x Helios AV125 External Wall Fan1 x COM-31 x Transformer Speed Control - RTRE- 1.5Amp1 x DEF-CBM-RE-7 - Protection Guard1 x CBT-100N Centrifugal1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Remote controller FLEX - for VEKO INT1 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Helios TSW 7.5 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-4TK1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW 3 Amp Transformer speed controller1 x Transformer 5 Speed Controller - ATC1-8TK1 x Three Phase Transformer controllers - RMT 1.5 Amp1 x Helios TSW MCB Amp Transformer speed controller1 x Helios TSW 1.5 Amp Transformer speed controller1 x RDS 7 Helios Transformer Controller With Motor Protection1 x Helios TSW 10 Amp Transformer speed controller1 x Systemair Save Connect 2.0 Internet Module1 x CS2 Current Switch1 x Temperature Fan Speed Controller - ATCP4-FLS1 x MWS 5 – Transformer Controller With Motor Protection Unit1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp1 x FAST-TRACK RANGE 90mm - Adaptor For Distribution Box1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Two Speed Switch - REGUL-21 x Electronic extractor fan speed controller - FSC 1.51 x Remote Timer Control - 13511 x Speed Controller - REB31 x Transformer (silent) speed controller - RE 1.5 Amp1 x Speed Controller - REB51 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)1 x Speed Controller - REB101 x Speed Controller - REB61 x Transformer Speed Control - RTRE- 5.0Amp1 x Transformer Speed Control - RTRE- 7.0Amp1 x Transformer (silent) speed controller - RE 5.0 Amp1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x Commercial Single or 3 phase Fan Reversing Switch - RS11 x CBM 9-9 550w 4P VR (Open Motor)1 x Speed Controller - REB1-N1 x TDP-D Pressure Sensor with Display
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Reviews
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