125mm White Ventilation Cowl With Non Return Flap For Round Ducting

125mm White Ventilation Cowl with Non Return Flap for Round Ducting

Improve external ventilation performance with this 125mm White Ventilation Cowl with Non-Return Flap, designed for efficient exhaust air extraction in domestic and commercial systems.

Manufactured from durable high-impact polypropylene, this external wall cowl features a 125mm male spigot connection for quick and secure installation into System 125 ducting. The integrated non-return flap opens during operation to allow air to exit freely, and closes when the system is not in use to help prevent backdrafts and unwanted airflow.

Designed for exhaust air applications only, it also helps protect the duct outlet from wind exposure by directing airflow away from the external wall. A reliable and durable solution for System 125 ventilation systems.

Specification:

• Diameter 125 mm
• Manufactured from High Impact Polypropylene
• Minimum free area of 6,560mm²
• Male spigot for connection inside of the System 125 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 as the fan operates
• 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