griglia afonica griglia acustica griglie afoniche
Rectangular regution damper
Galvanized steel, aluminium, stainless steel.
By using slotted bolt holes in the corners of the frame.
Operating temperature: -40 + 130 °C.
Rectangular regution damper are used for the air flow adjustment in ventilation ducts, in the ait treatment units and in the fans entrance.
A special shape of the frame limits the air seeping when the damper is closed.
A metallic support, called “universal plate”, allows the manual or motorized drives installation.
The opening and closure blades is done by a manual drive positioned on the side of the damper.