Poroltó

Poroltó refers to a dry chemical powder fire extinguisher used in Hungary. It suppresses small fires by releasing powder that interferes with the chemical reactions in flames. ABC powder extinguishers are common for households, vehicles, and light industry, and can handle fires of ordinary combustibles (A), flammable liquids (B) and energized electrical equipment (C).

The powder, typically monoammonium phosphate, is contained in a pressurized cylinder. When discharged, it blankets the flame, coats fuel surfaces, and helps to stop the chemical reactions sustaining the fire. While versatile, poroltók are less ideal for cooking-oil (F) fires and can leave a messy residue that may harm sensitive electronics.

Operation: Pull the safety pin, aim at the base of the fire, squeeze the handle, and sweep the nozzle from side to side. Stand at a safe distance and retreat if the fire grows. After use, call emergency services and arrange replacement or recharge; ventilate the area to clear powder.

Maintenance: Poroltók require regular checks of the pressure gauge and accessibility. They should be hydrostatically tested at intervals defined by national or European standards (often every 5–12 years). Keep away from heat, protect from damage, and replace units with signs of corrosion or leakage.

Regulatory context: In the EU, poroltók intended for general use conform to standards such as EN 3 and are typically labeled with the extinguishing class (ABC). Training on correct use is recommended, and local regulations may require mounting and periodic inspections.

Etymology and usage: The Hungarian term "poroltó" literally means powder extinguisher and is widely used to describe dry chemical extinguishers in everyday language.