100mm White Ventilation Cowl With Non Return Flap For Round Ducting
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Stock No: 3688627BS
Product Description
Designed for external wall ventilation applications, the 100mm White Ventilation Cowl with Non Return Flap helps protect against wind and back pressure while maintaining efficient exhaust airflow.
Manufactured from durable polypropylene, the cowl features a 100mm male spigot connection for secure fitting inside System 100 ducting. The integrated non-return flap opens during operation to allow exhaust air to disperse externally and closes when not in use to help prevent backdraft airflow from entering the system.
Suitable for exhaust air applications only, the cowl also helps shield the duct outlet from wind exposure by deflecting airflow away from the external wall.
Ideal for use with System 100 round ducting, it provides a reliable solution for domestic and commercial ventilation systems.
Specification:
- Diameter 100 mm
- Manufactured from Polypropylene
- Minimum free area of 7,283mm²
- Male spigot for connection inside of the System 100 duct
- Suitable for installation on exposed external walls where wind or back pressure against the ventilation unit is present
- Designed to shield the duct from the wind and deflect the air away
- Non-return flap acts as an additional measure to prevent airflow returning through the duct
- Flap lifts to allow the exhaust air to disperse into the atmosphere
- For exhaust air only
- Complies with Domestic Plastic Ductwork Specification DW/154 and does meet UL94HB flammability standard
- Max/Min Operating Temperatures: + 60°C to - 15°С
- Manufacturers’ names and numbers are used for reference purposes only. These parts are in no way associated with the initial manufacturers parts
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