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315mm dia Large Format Circular Diffuser - Silver/Grey

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Non-return (backdraft) Dampers

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



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.

100 dia Non-return (Backdraft) Damper
BDS-100




£3.45 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Male Couplers (Ref: NP)
2. Female Couplers (Ref: MF)
3. 100mm Semi-rigid Flexible Ducting (Ref: PAK100)
100 dia Non-return (Backdraft) Damper
125 dia Non-return (Backdraft) Damper
BDS-125




£4.11 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Female Couplers (Ref: MF)
2. Male Couplers (Ref: NP)
3. Wall Supports - Vertical Ducts (Ref: VWBS)
125 dia Non-return (Backdraft) Damper
150 dia Non-return (Backdraft) Damper
BDS-150




£4.32 (Excluding VAT at 20%)




Quantity:


150 dia Non-return (Backdraft) Damper
160 dia Non-return (Backdraft) Damper
BDS-160




£5.04 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. Damper Units - Balancing (Ref: DS)
2. 200mm Diameter Reducer (Ref: RC200)
3. Spiral Tube - 3m Lengths (Ref: SR)
160 dia Non-return (Backdraft) Damper
200 dia Non-return (Backdraft) Damper
BDS-200




£5.67 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. 200mm Diameter Reducer (Ref: RC200)
2. Rectangular Duct Straight 400x400mm (Ref: RDS400-400)
3. Female Couplers (Ref: MF)
200 dia Non-return (Backdraft) Damper
250 dia Non-return (Backdraft) Damper
BDS-250




£9.75 (Excluding VAT at 20%)




Quantity:



People who bought this item also bought:
1. M10 Back Plate Threaded Rod Hanger (Ref: BPH-10)
2. 300mm Custom Reducer (Ref: CRC300)
3. 250mm Dia Plate Mounted Axial Fan - Single Phase (Ref: HCBB/4-250/H)
250 dia Non-return (Backdraft) Damper
315 dia Non-return (Backdraft) Damper
BDS-315




£14.56 (Excluding VAT at 20%)




Quantity:


315 dia Non-return (Backdraft) Damper
355 dia Non-return (Backdraft) Damper
BDS-355




£19.74 (Excluding VAT at 20%)




Quantity:


355 dia Non-return (Backdraft) Damper
400 dia Non-return (Backdraft) Damper
BDS-400




£26.32 (Excluding VAT at 20%)




Quantity:


400 dia Non-return (Backdraft) Damper
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