Where Are Mobile Exproof Fans Used? Portable Hazardous-Area Ventilation
Where fixed ventilation is unavailable, or air movement is required only during maintenance, cleaning or temporary operations, mobile exproof fans provide a flexible solution. Portability combined with the correct hazardous-area certification enables rapid ventilation at changing work locations.
What is a mobile exproof fan?
A mobile exproof fan is designed for temporary or portable ventilation in areas where an explosive atmosphere may occur. It can be moved between locations without a permanent duct system and may be connected to suitable flexible ducting for local extraction or supply air.
Typical applications
- Ventilating tanks, silos and confined spaces before maintenance
- Temporary work areas involving paints and solvents
- Maintenance operations in chemical and petrochemical facilities
- Fuel storage and transfer areas
- Controlled temporary ventilation when a fixed system is unavailable
What information is needed for selection?
Zone classification, gas or dust group, temperature class, ambient temperature, required airflow and pressure are essential. Flexible-duct diameter and length should also be included in the calculation because they can add significant pressure loss.
Portable does not mean suitable everywhere
A common mistake is assuming that any product labelled “exproof” can be used in every hazardous area. The fan marking, certification scope, electrical supply, cable and gland arrangement and the installation zone must all be compatible.
MOB-AXD/ATEX solution
The MOB-AXD/ATEX mobile exproof fan in the Vensis range can be evaluated for portable field ventilation. The correct model should be selected by considering hazardous-area classification and required air performance together.