Please note that we are currently unable to dispatch to Northern Ireland. We apologise for any inconvenience this may cause.

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. 100mm dia DEC Combi Flexible Ducting (Ref: CLDCG102)
2. Hose clips - Bundle of 10 (Ref: HC10)
3. 125 dia Stainless Steel Supply/Exhaust Valves (Ref: KCN125)
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. 125mm Diameter Round Duct (Ref: RND125)
2. Split Ring Supports (Ref: SPR)
3. Spiral Tube - 3m Lengths (Ref: SR)
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. Hose Clips (Ref: HC)
2. 100 dia Actuator Controlled Damper Unit - Closing (Ref: DATML100)
3. 150 dia 45° Y Pieces with Seals (Ref: YSVL150)
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:


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. Hose Clips (Ref: HC)
2. 200mm Semi-rigid Flexible Ducting (Ref: PAK200)
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. Female Couplers (Ref: MF)
250 dia In Duct Non-return Damper with Seals

Your Basket

Items:
Total:

View BasketCheckout
Best Sellers

100 dia 90° Pressed Bends with Seals

100 dia 90 Pressed Bends with Seals

5.64

600mm 30x30 Cantilever Support

600mm 30x30 Cantilever Support

13.25

PU S1 Clear Extraction Hose 10m Length

PU S1 Clear Extraction Hose 10m Length

M8 Back Plate Threaded Rod Hanger

M8 Back Plate Threaded Rod Hanger

0.90

100mm dia Chrome Exhaust Valve

100mm dia Chrome Exhaust Valve

7.96