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Back-Draught Shutters Metal
Description
- Backdraft shutters (or Butterfly Dampers) are commonly used with inline exhaust fan systems.
- The shutters open with the pressure generated by air stream then closes automatically.
- They prevent air return when the fan is out of operation, thus preventing the entry of dust, odor, smoke etc.
- Diameters from 100 to 500mm.
- They have a rubber tape on the perimeter for perfect connection.
PDF / Specifications
