8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector
Product Description
8 Inch Draft Blocker Backdraft Damper Duct Draft Stopper One-Way Airflow Ducting Insert Backflow Preventer Inline Fan Vent Deflector
- 【Material】The 8 inch backdraft damper is made of a Galvanized steel, the flap leaves are made of aluminum
- 【Installation】The backdraft damper is installed by pushing it into the ventilation pipe as far as it will go. The position of the spring should be horizontal when the flap is installed horizontally so that it can be opened and closed optimally. This also applies to the vertical installation
- 【Function】This airflow regulating backdraft shutter fits over the TD lip and is designed to improve ventilation by preventing air from re-circulating when the fans are not in use
- 【Wide Application】 The backdraft dampers can be widely used in ACs, exhaust fans, extractors, range hoods, heating ducts, vents and other residential, commercial and industrial applications
- 【Note】Back draught valves can be inserted into ventilation ducts which are flexible or non flexible. Because the sizes are different backdraft damper can not be used with plastic ducts. All dimensions are measured manually, please allow 1-3mm differences
Technical Specifications
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