Installed in branches of Air Distribution ducts, these Opposed / parallel Blade Dampers are used to carry out a rough air system balance with closer control being carried out at the individual grilles or diffusers. Available in Aluminium or Galvanised steel.

1. Aerofoil profile with opposed / parallel blades.
2. Nylon bushes.
3. Motorised, Pneumatic duct damper.

1. Model AB-DD-OB-AL aluminium, duct damper.
2. Model AB-DD-PB-AL aluminium, duct damper.
3. Model AB-DD-OB-GI ga lvanised steel, duct damper.
4. Model AB-DD-PB-GI galvanised steel, duct dammper.