Installed behind grilles and diffusers, opposed blade volume control dampers help in adjusting air volumes to suit the requirements of the space as per the consultants design. The vertical louvers at 25 mm spacing facilitate even air distribution of the supply grille.

Installed in branches of Air Distribution ducts, these Opposed 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. Motorised version available.