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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...


£8.04 (Excluding VAT at 20%)





Quantity:



People who bought this item also bought:
1. Female Couplers (Ref: MF)
2. Male Couplers (Ref: NP)
3. 100 dia Non-return (Backdraft) Damper (Ref: BDS-100)
100 dia In Duct Non-return Damper with Seals

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

Data sheet...



£8.04 (Excluding VAT at 20%)





Quantity:



People who bought this item also bought:
1. 125 dia 45° Pressed Bends with Seals (Ref: BPL45-125)
2. Fume Extraction Hood Length 1500 Depth 1200 (Ref: EXH1500-1200)
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...


£8.08 (Excluding VAT at 20%)





Quantity:



People who bought this item also bought:
1. Female Couplers (Ref: MF)
2. Ring Leader Fixing Ring 100mm (Ref: TVRL-100)
3. Ring Leader Fixing Ring 150mm (Ref: TVRL-150)
150 dia In Duct Non-return Damper with Seals

160 dia In Duct Non-return Damper with Seals
DAOSL-IN-160

Data sheet...


£8.78 (Excluding VAT at 20%)





Quantity:


160 dia In Duct Non-return Damper with Seals

200 dia In Duct Non-return Damper with Seals
DAOSL-IN-200

Data sheet...


£11.07 (Excluding VAT at 20%)





Quantity:



People who bought this item also bought:
1. Female Couplers (Ref: MF)
2. Spiral Tube - 3m Lengths (Ref: SR)
3. 315mm Diameter Booted T (Ref: TB315)
200 dia In Duct Non-return Damper with Seals

250 dia In Duct Non-return Damper with Seals
DAOSL-IN-250

Data sheet...


£17.00 (Excluding VAT at 20%)





Quantity:



People who bought this item also bought:
1. M8 Back Plate Threaded Rod Hanger (Ref: BPH-8)
2. 90° Bends - Stainless Steel 250mm dia (Ref: BSK-K-90-250)
3. 250 dia 90° Segmented Bends with Seals (Ref: BSL90-250)
250 dia In Duct Non-return Damper with Seals

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