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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...


£8.35 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 200mm Dia Inline Duct Fan (Ref: DV200)
2. DV-REG-L-1 Speed controller (Ref: DV-REG-L-1)
100 dia In Duct Non-return Damper with Seals
125 dia In Duct Non-return Damper with Seals
DAOSL-IN-125

Data sheet...



£8.35 (Excluding VAT at 20%)




Quantity:


125 dia In Duct Non-return Damper with Seals
150 dia In Duct Non-return Damper with Seals
DAOSL-IN-150

Data sheet...


£8.39 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 150 dia 90° Pressed Bends with Seals (Ref: BPL90-150)
2. Ductwrap - Isover ClimCover Alu2 50mm 9m Roll (Ref: DWRP50)
3. Hose Clips (Ref: HC)
150 dia In Duct Non-return Damper with Seals
160 dia In Duct Non-return Damper with Seals
DAOSL-IN-160

Data sheet...


£9.12 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Male Couplers (Ref: NP)
2. Support Banding 25 Metres (Ref: PB)
3. 160mm Diameter Pressed Saddle (Ref: PS160)
160 dia In Duct Non-return Damper with Seals
200 dia In Duct Non-return Damper with Seals
DAOSL-IN-200

Data sheet...


£11.50 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 200 dia Non-return Damper with Seals (Ref: DAOSL-200)
2. 315 dia Non-return Damper with Seals (Ref: DAOSL-315)
200 dia In Duct Non-return Damper with Seals
250 dia In Duct Non-return Damper with Seals
DAOSL-IN-250

Data sheet...


£17.66 (Excluding VAT at 20%)




Quantity:


250 dia In Duct Non-return Damper with Seals
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