Please note that we are currently experiencing a high number of orders and that the current lead time on all products manufactured to order will be approx. 7 - 10 working days. Off the shelf products are unaffected.


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Non-return (backdraft) Dampers with Seals

Ventilation Ducting  | Dampers & Access Doors | Non-return Dampers |  Non-return (backdraft) Dampers with Seals



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 Non-return Damper with Seals
DAOSL-100




£8.03 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Spiral Tube - 3m Lengths (Ref: SR)
2. Spiral Tube Duct 1.5m Length (Ref: SRH)
3. 315mm Diameter T Piece (Ref: TCP315)
100 dia Non-return Damper with Seals
125 dia Non-return Damper with Seals
DAOSL-125




£8.03 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Fast Clamps (Ref: FC)
2. Filter Elements (Ref: FIL)
3. Suspension Rings with EPDM Rubber (Ref: RSUR)
125 dia Non-return Damper with Seals
150 dia Non-return Damper with Seals
DAOSL-150




£8.07 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Fast Clamps (Ref: FC)
2. Filter Elements (Ref: FIL)
3. Hose clips - Bundle of 10 (Ref: HC10)
150 dia Non-return Damper with Seals
160 dia Non-return Damper with Seals
DAOSL-160




£8.77 (Excluding VAT at 20%)




Quantity:


160 dia Non-return Damper with Seals
200 dia Non-return Damper with Seals
DAOSL-200




£11.06 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Fast Clamps (Ref: FC)
2. Plastic Louvre Back Draft Shutter to Suit 450mm dia Fans (Ref: PER-450-W)
3. Plastic Louvre Back Draft Shutter to Suit 500mm dia Fans (Ref: PER-500-W)
200 dia Non-return Damper with Seals
250 dia Non-return Damper with Seals
DAOSL-250




£16.98 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Foil Plain Flexible Ducting (Ref: AF)
2. 90° Bends (Ref: B90)
3. 200mm Diameter Reducing Y Piece (Ref: RCYP-200)
250 dia Non-return Damper with Seals
315 dia Non-return Damper with Seals
DAOSL-315




£28.87 (Excluding VAT at 20%)




Quantity:


315 dia Non-return Damper with Seals
355 dia Non-return Damper with Seals
DAOSL-355




£29.36 (Excluding VAT at 20%)




Quantity:


355 dia Non-return Damper with Seals
400 dia Non-return Damper with Seals
DAOSL-400




£45.80 (Excluding VAT at 20%)




Quantity:


400 dia Non-return Damper with Seals
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