NFPA 654: Standard for the Prevention of Fire and Dust Explosions


NFPA 654: Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids contains comprehensive guidance on the control of dusts to prevent explosions. The following are some of its recommendations:

  • Minimize the escape of dust from process equipment or ventilation systems;
  • Use dust collection systems and filters;
  • Utilize surfaces that minimize dust accumulation and facilitate cleaning;
  • Provide access to all hidden areas to permit inspection;
  • Inspect for dust residues in open and hidden areas, at regular intervals;
  • Clean dust residues at regular intervals;
  • Use cleaning methods that do not generate dust clouds, if ignition sources are present;
  • Only use vacuum cleaners approved for dust collection;
  • Locate relief valves away from dust hazard areas; and
  • Develop and implement a hazardous dust inspection, testing, housekeeping, and control program (preferably in writing with established frequency and methods).

When all of the recommendations of NFPA 654 are met and the potential for dust explosions is still present, an Explosion Prevention Systems from IEP Technologies should be applied to the process areas where needed.

Dust explosion accidents around the world kill hundreds and cause billions dollars in damages each year. However, these dust explosion accidents can be controlled and thereby limiting the potential for serious injuries or death, while reducing the damage to expensive process equipment.

Dust explosions happen during the conveying, processing, pulverizing and storage of a wide range of materials. Materials such as Aluminum, Cellulose, Charcoal, Corn, Floor, Fungicides, Grain, Milk Powders, Pharmaceuticals, Plastics, Resin, Starch, Sugar and others, under the right conditions, can and will explode.

To prevent or mitigate a hazardous condition from becoming an explosive event, IEP Technologies provides a wide range of systems like a dust collector protection system. In a typical Dust Collector application an explosion venting system would contain the following basic components: Explosion Relief Vent Panel, Pressure Detector, Single Zone Control Panel, Isolation Extinguisher and a Rotary Gate Valve.


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