Backdraft shutter

The VKS shutters are made of galvanized sheet steel, the blades are made of aluminium. The VKS back draft dampers are suitable for the DVS / DHS, DVSI, DVN roof fans. Flange mounting.

The BTG non-return dampers are designed for installation in the TG roof silencer curbs. The damper blades are made of galvanized steel sheet. The damper frame is mounted on the bottom of the roof curbs, only in a vertical position.

The VKM shutters are designed for the DVS / DHS, DVSI, DVN, DVNI, DVC fans. The VKM back draft dampers are equipped with 230 V actuators and can be operated manually or automatically. When the power supply is interrupted, the damper blade closes automatically. The dampers are made of galvanized sheet steel, the blades are made of aluminium, maximum operating temperature 70 °C.