Centrifugal fan LEX/MEX

ventilationextraction400VAC

Product summary
The LEX/MEX ATEX fans are high-efficiency centrifugal fans engineered for safe ventilation in ATEX zones 1 and 2/22. They feature backward-curved, self-cleaning impellers and are available in fully galvanised steel or acid-proof stainless steel (AISI 316L) for highly corrosive environments. Suitable for industrial processes, gas ships, oil rigs and other offshore installations. Compatible with frequency inverters for energy-efficient speed control depending on ATEX zone and motor type.

What do you get?

• ATEX-compliant centrifugal fan for safe operation in zones 1 and 2/22.
• High-efficiency, backward-curved impellers for optimal airflow.
• Option in AISI 316L acid-proof stainless steel for corrosive atmospheres.
• Compatible with frequency inverters for precise speed control.
• Fully galvanised construction with vibration absorbers and outlet bracket as standard.
• Suitable for process and comfort ventilation in explosive atmospheres.
• Designed for integration with Geovent automatics.

Product information
The LEX/MEX ATEX fans are manufactured in accordance with ATEX directive 2014/34/EU and incorporate measures to prevent static electricity and sparks at the inlet. The casing is fully galvanised and fitted with a protective grill, vibration absorbers and an outlet bracket as standard. For aggressive extractions the fan can be supplied in AISI 316L acid-proof stainless steel to resist corrosive fumes. The energy-efficient design and backward-curved, self-cleaning impellers make these fans suitable for both individual extraction units and larger central extraction systems.

Technical data

• Material: Galvanised steel (AISI 316L option)
• Installation: Indoor / Outdoor
• Max. air volume: 18,000 m³/h
• Max. pressure: 4,500 Pa
• Voltage: 3×400 V
• Current: 0.9 – 18.5 A
• Power: 0.37 – 18.5 kW
• Weight: 30 – 200 kg (depending on configuration)

Applications and corrosion resistance
The LEX/MEX fans are particularly suited for chemical processing, battery charging stations, gas ships, oil rigs and other installations where corrosive fumes are present. The AISI 316L acid-proof stainless steel option provides enhanced durability in highly aggressive atmospheres and extends service life in corrosive environments.

Technical specifications

• ATEX zones: 1 and 2/22 (suitable for explosive atmospheres)
• Impeller type: Backward-curved, self-cleaning blades
• Construction options: Fully galvanised steel; acid-proof stainless steel (AISI 316L) available
• Protection features: Inlet protection against static electricity and sparks, protective grill
• Mounting and fittings: Vibration absorbers and outlet bracket included as standard
• Airflow capacity: Up to 18,000 m³/h
• Maximum pressure: Up to 4,500 Pa
• Electrical: 3×400 V; current range 0.9–18.5 A; power range 0.37–18.5 kW
• Weight range: 30–200 kg depending on configuration
• Compatibility: Usable with frequency inverters for energy savings and precise speed control