One of the ways we can classify fans is by their constructive form. These can be: with casing, wall-mounted, and jet fans
CASED FANS FOR DUCT
Cased fans are normally tubular, they move the air inside a duct that is connected directly to the fan casing with flanges, adhesive tape, or directly with screws.
In the Casals catalog you can find different types of fans with duct casing. Here are a few different examples:
WALL FANS
Wall fans extract air from one space to another installed on the wall that separates them. They are equipped with a frame that allows their vertical installation on the wall.
In the Casals catalog you can find different types of wall fans. Here are a few different examples:
IMPULSE OR JET FANS
Jet fans or impulse fans provide air at a certain speed over something or someone without being driven.
In the Casals catalog you can find centrifugal or axial jet fans, specially designed for use in ventilation and emergency evacuation applications. These fans work by generating a high speed, low-pressure air stream, which can be used to create airflow in enclosed spaces such as underground car parks, airports, train stations, etc. with the aim of improving air quality and reducing smoke and toxic gases in case of fires.
