VENTS KG 500x250
Gravity louvre shutter for air flow cut-off in rectangular air ducts. The shutter is closed during the system standby preventing back draft.
Mounted horizontally in the duct allowing the blades to close under their own weight. Correct direction of airflow should be considered.
Galvanized steel with light-weighted plastic gravity blades. The blades open by the airflow and close when the fan is not running preventing back draft.
|Form-ducts||for rectangular air ducts||-|
|Series||Flange dimensions [mm]|
||400х200; 500х250; 500х300; 600х300; 600х350; 700х400; 800х500; 900х500; 1000х500|