• Model:DAOSL

DAOSL Back Draft Damper

£ 10.53 (excl. VAT)

£ 12.64 (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 and 125mm, Please select above..
NB. 100mm and 150mm out of stock until mid February. Try the BDP

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 Elta SCP250/4-3AC - IP551 x Elta SCP350/4-1AC - IP551 x Soler & Palau TCBT/4-710/H - IP651 x Impeller Side Guard - 560mm1 x ERM 18 protection guard - SGM 18 EX1 x Impeller Side Guard - 630mm1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 1.5KW1 x Backdraught Shutters 039-SFSV-63/711 x DEF-CBM-RE-7 - Protection Guard1 x BDS 350 RA b/d shutter1 x Impeller Side Guard - 710mm1 x Elta Variable Speed Drive IP66 - 2.2KW1 x JCA 560 - Back Draft Shutter for CRHB/CRHT Roof Fans1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta SPA350/4-1AC - IP441 x Impeller Side Guard - 500mm1 x Curved boot - 300mm1 x FSD-TD 316 Grade Stainless Steel Fire and Smoke Damper, 700mm x 700mm, EASY FIX AF, GALV Case, GALV Blades, PM230v1 x CBT-80N Centrifugal1 x FSD-TD 400 x 200 Fire and Smoke Damper, S, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x Hydor Typhoon Circulation Fans - HVFB - 450mm1 x EM 250-E2M 01- Etamaster-2501 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 4501 x Comefri - TLZ 450 R - High Performance Scroll Fan1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x Soler & Palau - HXTR/12-800/28-A1 x FSD-TD 200mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x FSD-TD 180mm Fire and Smoke Damper, Type C, EASY FIX AF, GALV Case, GALV Blades, PM230-TF (SC)1 x GB-WSD 250 Weather Protection hood for the Giga-Box Fans - 250mm1 x Axial Roof mounted Extract/Supply Fan- -HCTT/4-1000-A 5.5kw1 x Metal Inline Fan - VENT-100NK1 x GB-WSG 630 External Weather Louvers for the Giga-Box Fans - 630mm1 x Prio 150E2 circular duct fan1 x Clearflow CF Roof Mounted Vertical Discharge Centrifugal Fan - CF350/4-3AC - Three Phase
Reviews
Duct Mounted Inline Filter - EU4
Duct Mounted Inline Filter - EU4
£ 41.95

Well made and robust, but it was not use for my application ...