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Fan Systems ATEX Fans

ATEX Fans – Safe Operation in Explosive Atmospheres

ATEX refers to the European directives governing equipment intended for use in potentially explosive atmospheres. ATEX fans are specifically designed to operate safely where flammable gases, vapours, mists or combustible dusts may be present. Selecting the correct ATEX-rated fan is critical and must be based not only on the characteristics of the media being conveyed, but also on the classification of the external environment in which the fan is installed. Proper specification ensures compliance, minimises ignition risk, and safeguards personnel, plant and processes.

Our ATEX Fan Capabilities

Fan Systems, as part of the Witt Group, manufactures ATEX-certified fans for Gas Zones 0, 1 and 2 (Categories 1G, 2G and 3G) and Dust Zones 21 and 22 (Categories 2D and 3D). All ATEX fans are designed and manufactured in accordance with BS EN 14986:2024 – Design of fans working in potentially explosive atmospheres, BS EN ISO 80079-36:2016 – for non-electrical equipment for explosive atmospheres (basic method and requirements),BS EN ISO 80079-37:2016 – for non-electrical equipment for explosive atmospheres.
Our solutions are engineered to meet the required protection category and zone classification, ensuring safe, compliant and reliable performance across a wide range of industrial applications.

Frequently

Asked Questions

What is ATEX and why is it important?
ATEX derives from the French “Atmosphères Explosibles” and refers to European/UK regulations controlling explosive atmospheres. The ATEX Directive 2014/34/EU (previously 94/9/EC) is mandatory for all equipment used in potentially explosive environments. Compliance ensures worker safety and legal operation in hazardous areas. Non-compliance can result in serious accidents, legal liability, and operational shutdown.
Zone 0/20 represents areas where explosive atmospheres are present continuously or for long periods—requiring the highest safety standards. Zone 1/21 indicates explosive atmospheres likely during normal operation. Zone 2/22 covers areas where explosive atmospheres are unlikely but possible. Our fans are certified for all zones, with specific designs optimised for each risk level.
Our ATEX fans incorporate multiple protection methods: explosion-proof motors prevent electrical ignition, spark-resistant construction eliminates mechanical sparking, earthing/bonding prevents static discharge, temperature control prevents surface ignition, and certified flame arrestors prevent flame propagation. The 10-bar explosion containment ensures any internal ignition cannot breach the casing.
ATEX fans are mandatory in chemical and petrochemical plants, pharmaceutical manufacturing, oil and gas facilities, paint and coating operations, distilleries and breweries, grain handling and food processing, mining operations, wastewater treatment plants, and any facility handling flammable gases, vapours, or combustible dusts. UK HSE regulations require ATEX compliance in all designated hazardous areas.
We require: zone classification (0, 1, 2, 20, 21, 22), gas/dust group (IIA, IIB, IIC, IIIA, IIIB, IIIC), temperature class (T1-T6), explosive medium details, ambient temperature range, required airflow and pressure, and installation environment details. Our engineers ensure correct selection and provide complete ATEX documentation including certificates, risk assessments, and operation manuals.
No, ATEX compliance must be designed and certified from manufacture. Retrofitting cannot achieve required safety levels and would violate certification requirements. We offer replacement solutions with minimal disruption, often utilising existing ductwork and infrastructure. Our team manages the complete transition including decommissioning, installation, and certification of new ATEX-compliant systems.