ATEX Axial Ring Fan: Reliable Explosion-Proof Ventilation for Hazardous Areas

The VN-Ring ATEX Axial Ring Fan is a powerful and reliable solution for ventilation in hazardous environments. Designed for use in areas with flammable gases or combustible dust, it is certified for ATEX Zone 1 and 2 (Gas) and Zone 21 and 22 (Dust on request)—making it a safe and compliant choice across a wide range of industrial applications.

Available in diameters from 310 mm to 1,250 mm, the VN-Ring fan can be tailored to your specific needs with a variety of impeller and motor configurations. It delivers airflow up to 80,000 m³/hr and pressure up to 750 Pa, ensuring efficient and effective air movement even in demanding conditions.

The fan is equipped with an ATEX-certified IP55 motor, suitable for 230V single-phase or 400V three-phase operation. Its casing is available in steel, aluminum, or stainless steel, and the impellers—made from plastic or aluminum—feature adjustable blades for optimized performance.

Designed with flexibility in mind, the VN-Ring fan supports both motor-to-impeller and impeller-to-motor airflow directions. It can be controlled with a frequency converter for precise speed adjustment and is available with a wide range of accessories and optional motor specifications, including different voltages, frequencies, and certification levels.

Key Features

• ATEX Certification: Zone 1 & 2 (Gas), Zone 21 & 22 (Dust on request)

• Sizes: Diameters from 310 mm to 1,250 mm

• Motor: ATEX IP55, 230V single-phase or 400V three-phase

• Airflow: Up to 80,000 m³/hr

• Pressure: Up to 750 Pa

• Casing Materials: Steel, aluminum, or stainless steel

• Impellers: Plastic or aluminum, with adjustable blade angles

• Airflow Direction: Motor → Impeller or Impeller → Motor

• Speed Control: Compatible with frequency converters

• Accessories: Protection grids, silencers, shutters, switches, terminal boxes

• Customization: Available with motors of various voltages, frequencies, and certifications

Ex Marking

Ex h IIB T4 Gb

Ex h IIIB T135°C Db

Ex h IIIB T135°C Dc