Extraction fan LEF series

high-performancelow-noisecentrifugal

LEF 800, 900, 1000 FanThe Geovent LEF-800, 900 and 1000 fans are three larger variants compared to our range of fans with B-type impellers. Ideal for general ventilation and smaller process extraction jobs, they deliver airflow up to 55,000 m³/h. With it’s galvanised construction it’s suitable for outdoor installation and ensure reliable performance in demanding environments.
What do you get?

• Energy-efficient centrifugal fans with B-impellers.
• Robust, galvanised steel housings for optimal corrosion resistance.
• High airflow of up to 55,000 m³/h.
• Suitable for outdoor installation and demanding environments.
• Demand-controlled operation with frequency converter for energy savings.
• ATEX versions available for explosive atmospheres.
• Tested according to ISO 5801 standards for reliable performance

The LEF-800, LEF-900 and LEF-1000 fans are powerful centrifugal fans designed for efficient ventilation and extraction in industrial environments. Built with energy-efficient B-impellers and an IE3 motor, they deliver exceptional airflow of up to 55,000 m³/h and pressure levels up to 4,300 Pa, making them suitable for a wide range of applications where high performance and reliability are crucial.

Constructed from 100% galvanised steel, these fans provide excellent corrosion resistance, ensuring long-lasting durability even in demanding outdoor conditions. Their reinforced structure effectively handles the increased weight and forces involved in high-capacity ventilation tasks. Designed for general ventilation and smaller process extraction jobs, they are ideal for installations where high pressure is not required.

For maximum energy efficiency, the LEF fans are compatible with demand-controlled operation via frequency converters, allowing precise airflow management while reducing energy consumption. Additionally, ATEX versions are available, meeting the 2014/34/EU directive, making them safe for use in explosive atmospheres. In such cases, the fans are designated as LEX/MEX models and come equipped with an EExE motor as standard.

The LEF fans are rigorously tested according to ISO 5801 standards, ensuring consistent performance and safety.

Whether for general ventilation or specialised extraction tasks, the LEF 800, 900, and 1000 Fans provide robust, reliable, and energy-efficient solutions, tailored to meet the demanding needs of modern industrial environments.