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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. 150 dia Non-return Damper with Seals (Ref: DAOSL-150)
2. Hose Clips (Ref: HC)
3. Circular Roof Cowls (Ref: HU)
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. Tecseal 200 FRA 380cc Cartridge (Ref: 200FRA)
2. 50mm Width Cold Shrink Tape Roll (Ref: ASB7050)
3. 125mm Bird Beaks with Seals (Ref: ASVL125)
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. Spiral Tube Duct 1.5m Lengths (Ref: SRH)
2. Suspension Rings with EPDM Rubber (Ref: RSUR)
3. 90° Bends (Ref: B90)
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. 200mm dia Blast Gate Damper (Ref: BG200)
2. 200 dia In Duct Non-return Damper with Seals (Ref: DAOSL-IN-200)
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. Rectangular Duct Straight 300x100mm (Ref: RDS300-100)
2. 200 Self-Drilling Screws + Drill Adapter (Ref: VDK-200)
3. Square to Round 300mm Width 100mm Depth (Ref: SQRD300-100)
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 100FR 380cc Cartridge (Ref: 100FR380)
2. Aluminium Foil Duct Tape (Ref: AFT)
3. 250 dia Bird Beak (Ref: ASV250)
250 dia In Duct Non-return Damper with Seals

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