OB or opposed blade volume control damper for grilles and diffusers has been designed to provide positive control of air.

Description:

Manufacture:

The range is constructed from high quality aluminum alloy extrusion (6063-T6) and are installed on grille or diffusers neck by spring clips. Damper is operated by screwdriver from front. The opposed blade movement is available through a specially tooled aluminum channel. Damper blades are held in position with stainless steel spring wire.

Sizes: Square and rectangular to suit grille / diffuser size as listed separately (see chart of relevant Grille/diffuser)

Features:

Robust construction for long trouble free service.
Smooth operation from front.
Blades pretensioned with stainless steel wire

Ordering: