Circular External Weather Louvers

Overview

External weather louvres are externally mounted air transfer devices for the fresh air and exhaust air of air conditioning systems. They are installed in external walls and façades. Their narrowly arranged blades give good protection against the direct ingress of rain as well as against leaves and birds.

Under certain unfavourable conditions, such as heavy rain, and depending on the airflow velocity it might happen that slight quantities of water enter together with the air. This is why the airflow velocity in fresh air openings should not exceed 2,5  – 3 m/s.

• Maximum diameter 1100 mm

• Low differential pressure due to aerofoil blades

• Low air-regenerated noise

• Available in standard sizes and many intermediate sizes

Construction Options:

Material

• Aluminum

• Galvanneal Sheet Steel

• Stainless Steel

Accessories

• Bird and insect screens

• Filters

• Dampers