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In Duct Non-return (backdraft) Dampers

Ventilation Ducting  | Dampers & Access Doors | Non-return Dampers |  In Duct Non-return (backdraft) Dampers



In Duct Non return dampers with seals


Non-return dampers have traditionally been installed between two lengths of duct, rather like a coupler: new in duct dampers can be inserted directly, simplifying installation.

Lightweight aluminium blades on a light steel spring maintain the damper in the closed position when no air is flowing, preventing wind/drafts from flowing back through the duct. These dampers feature seals and rolled edges.

100 dia In Duct Non-return Damper with Seals
DAOSL-IN-100

Data sheet...


£8.03 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Hose Clips (Ref: HC)
2. Illbruck Duct Sealant - 310ml Cartridge (Ref: LD410)
3. Female Couplers (Ref: MF)
100 dia In Duct Non-return Damper with Seals
125 dia In Duct Non-return Damper with Seals
DAOSL-IN-125

Data sheet...



£8.03 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Hose Clips (Ref: HC)
2. Illbruck Duct Sealant - 310ml Cartridge (Ref: LD410)
3. Female Couplers (Ref: MF)
125 dia In Duct Non-return Damper with Seals
150 dia In Duct Non-return Damper with Seals
DAOSL-IN-150

Data sheet...


£8.07 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 90° Bends (Ref: B90)
2. 150 dia Non-return (Backdraft) Damper (Ref: BDS-150)
3. 160 dia In Duct Non-return Damper with Seals (Ref: DAOSL-IN-160)
150 dia In Duct Non-return Damper with Seals
160 dia In Duct Non-return Damper with Seals
DAOSL-IN-160

Data sheet...


£8.77 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 150 dia In Duct Non-return Damper with Seals (Ref: DAOSL-IN-150)
160 dia In Duct Non-return Damper with Seals
200 dia In Duct Non-return Damper with Seals
DAOSL-IN-200

Data sheet...


£11.06 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 200 dia 90° Pressed Bends with Seals (Ref: BPL90-200)
2. 200mm Semi-rigid Flexible Ducting (Ref: PAK200)
3. Rectangular Duct Straight 300x100mm (Ref: RDS300-100)
200 dia In Duct Non-return Damper with Seals
250 dia In Duct Non-return Damper with Seals
DAOSL-IN-250

Data sheet...


£16.98 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Tecseal 200 FRA Duct Sealant - 380ml Cartridge (Ref: 200FRA)
2. Circular Bell Mouth (Ref: BM)
3. 250 dia 90° Bird Beak - Vertical Ducts (Ref: BSAV250)
250 dia In Duct Non-return Damper with Seals
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