Explosive atmosphere fans

INTRODUCTION

All types of axial and centrifugal fans are available for the purpose of operating in explosive atmospheres. Flexible Engineering supplies ATEX-certified fan solutions designed to meet the stringent safety requirements of hazardous environments across industrial, chemical, petrochemical, and mining applications.

FAN CONSTRUCTION

• Tubular casing made of sheet steel with aluminium strip in impeller zone, in accordance with standard EN 14986.
• Cast aluminium impellers.
• With inspection hatch.
• Airflow direction from motor to impeller.

ATEX Certification Marking

Standard marking with flameproof motor (Ex db): II 2G Ex h IIB T4 Gb

Standard marking with increased safety motor (Ex eb): II 2G Ex h IIB T3 Gb

Standard marking with motor for dust ignition proof (Ex tb): II 2D Ex h IIIC T135 ºC Db

MOTOR SPECIFICATIONS

• Class F motors with ball bearings and ATEX certification flameproof Ex db, increased safety Ex eb or dust ignition proof Ex tb.
• Three-phase 230/400 V 50 Hz (up to 4 kW) and 400/690 V 50 Hz (powers greater than 4 kW).
• Working temperature: -20 ºC +40 ºC.

FINISH

Anti-corrosive with ATEX paint, free of iron components, in polyester resin polymerized at 190 ºC, after degreasing with phosphate-free nanotechnological treatment.

OPTIONS ON REQUEST

• Motors with built-in PTC.
• Special windings for different voltages and frequencies.
• ATEX construction for flammable dust.
• ATEX fan with greater protection than the standard marking.
• Fans with 2 speed motor.
• Ex db flameproof single-phase motors.