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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 In Duct Non-return Damper with Seals (Ref: DAOSL-IN-150)
2. Filter Boxes (Ref: FILB)
3. Belimo LM230A-S Damper Actuator 230v (Ref: LM230A-S)
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. Damper Units - Closing (Ref: DAT)
2. Filter Elements (Ref: FIL)
3. Hose clips - Bundle of 10 (Ref: HC10)
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. 150mm Semi-rigid Flexible Ducting (Ref: PAK150)
2. 100 dia In Duct Non-return Damper with Seals (Ref: DAOSL-IN-100)
3. Filter Boxes (Ref: FILB)
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. Split Ring Supports (Ref: SPR)
2. 200 dia In Duct Non-return Damper with Seals (Ref: DAOSL-IN-200)
3. 160 dia Actuator Controlled Damper Unit - Closing (Ref: DATML160)
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. Split Ring Supports (Ref: SPR)
2. 200mm dia Stainless Steel Spiral Tube (Ref: SPR-K-200)
3. Studding - 1m Lengths (Ref: THRD1)
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:


250 dia In Duct Non-return Damper with Seals

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