Dry powder fire extinguisher is an effective fire extinguishing equipment, which is widely used in various places to extinguish different types of fires. The dry powder fire extinguishing agent contained in it has good fire extinguishing performance.
Classification of
dry powder fire extinguishers:
ABC dry powder fire extinguisher: suitable for extinguishing Class A (solid fuel), Class B (liquid fuel) and Class C (gas fuel) fires.
BC dry powder fire extinguisher: mainly used to extinguish Class B and Class C fires, suitable for some environments that do not involve solid combustibles.
Fire extinguishing agent ingredients
Dry powder extinguishing agent: The main ingredients are usually:
Ammonium phosphate (for Class A fires)
Sodium carbonate or ammonium sulfate (for Class B and C fires)
Other common ingredients include sodium chloride (salt).
Dry powder extinguishers extinguish fires by means of asphyxiation and cooling.
How to use:
Pull the safety latch.
Aim the nozzle at the bottom of the fire.
Press the handle, evenly spray the extinguishing agent, and cover the fire source by sweeping.
Precautions: Try to keep a safe distance from the fire source when using, and ensure that it is used in a well-ventilated place to avoid inhaling fire extinguishing agent dust.
Application field
Home and business: suitable for kitchen, garage, office building and other places, fire prevention and fire suppression in a small area.
Industry: Widely used in chemical plants, oil refineries, power facilities, etc., to deal with the fire caused by flammable and explosive materials.
Safety standard
Dry powder fire extinguishers must comply with various national and international safety standards, such as:
China GB 4351 "Fire extinguisher Test and inspection standards"
International Fire Protection Association (NFPA) standards.
