Accessories for chimneys, stainless steel exhaust systems and flue pipes.
The VBD Vent Damper System consists of a single blade damper. It can be used as an on/off damper to prevent airflow though the appliance in an off cycle as well as to maintain a constant negative or positive pressure in the vent exhaust connector.
20 Gauge 316L stainless steel housing and blade
½” graphite sealed bearings
Viton seal on damper blade
½” flanged connections
Positioning: horizontally or vertically – shaft must remain horizontal
Motor actuated on/off and modulating gas vent damper for gas vents serving gas or liquid burning appliances such as Category I, II, III & IV appliances or Building Heating Appliances.Essential for common venting Condensing or Category II/IV Appliances – will not allow any possibility of flue gas recirculation and to maintain constant exhaust pressure for each appliance at all times.Reduction of cycle venting losses through boilers and draft hoods.