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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. Female Couplers (Ref: MF)
2. 100 dia 90° Pressed Bends with Seals (Ref: BPL90-100)
3. 100 dia Stainless Steel Outlets with Gravity Flaps (Ref: USMS100)
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. Aluminium Foil Duct Tape (Ref: AFT)
2. M10 Back Plate Threaded Rod Hanger (Ref: BPH-10)
3. 125 dia 90° Pressed Bends with Seals (Ref: BPL90-125)
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. Female Couplers (Ref: MF)
2. Male Couplers (Ref: NP)
3. Suspension Rings with EPDM Rubber (Ref: RSUR)
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. Aluminium Foil Duct Tape (Ref: AFT)
2. 160 dia 45° Pressed Bends with Seals (Ref: BPL45-160)
3. Double-sided Spigots on Plates (Ref: DSPG)
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. 315 dia Non-return Damper with Seals (Ref: DAOSL-315)
2. Filter Boxes (Ref: FILB)
3. 300mm - 250mm Reducer with Seals (Ref: RSCL300-250)
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. DEC Sonodec Acoustic Flexible Duct 250mm dia (Ref: CLDS-250)
2. 250 dia Actuator Controlled Damper Unit - Closing (Ref: DATML250)
3. Ductwrap - Isover ClimCover Alu2 25mm 18m Roll (Ref: DWRP25)
250 dia In Duct Non-return Damper with Seals
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