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Backdraft Damper
9.5 · BDD

Backdraft Damper

A spring-loaded backdraft damper for circular ducts, with a galvanised steel spigot and lightweight aluminium blades.

Features

  • Regulates or shuts off airflow in circular ducts
  • One-way directional airflow design
  • Spring-loaded for positive closure
  • Designed for vertical or horizontal mounting
  • Nine sizes from Ø100 mm to Ø400 mm (4" to 16")

Construction

  • Galvanised steel spigot with lightweight aluminium blades
Enquire Catalogue PDF · p. 77

Packing Information

Diameter D (mm)Height H (mm)Quantity per carton (pcs)Carton dimensions (cm)Carton volume (m³)
1001309660.5 × 40.5 × 45.50.1115
1251308063.0 × 50.5 × 45.50.1448
1501306460.5 × 60.5 × 45.50.1665
1601306464.5 × 64.5 × 45.50.1893
2001303660.5 × 60.5 × 45.50.1665
2501301650.5 × 50.5 × 45.50.1160
3001301660.5 × 60.5 × 45.50.1665
3151301663.5 × 63.5 × 45.50.1835
400130880.5 × 40.5 × 45.50.1483