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.