Dry powder fire extinguishing agent can be mainly divided into the following types, according to their characteristics are summarized:
1. Ordinary dry powder extinguishing agent (BC dry powder extinguishing agent)
It is mainly used to fight Class B (liquid fire, such as gasoline, diesel, etc.), Class C (gas fire, such as natural gas, liquefied petroleum gas, etc.) and Class E (live equipment fire) fires. Common base materials include sodium bicarbonate.
2. Multi-purpose dry powder extinguishing agent (ABC dry powder extinguishing agent)
It can be used to fight Class A (solid material fires, such as wood, paper, etc.), Class B, Class C and Class E fires.The main base material is the mixture of phosphate, ammonium phosphate and ammonium sulfate.
3.Special dry powder extinguishing agent（Purple K dry powder extinguishing agent）
Purple K dry powder has a strong penetration and coverage area, can quickly cover the fire source and extinguish the flame, especially suitable for extinguishing all kinds of early fires, especially liquid and gas fires.Purple K dry powder is especially suitable for important sites such as oil fields, refineries and airports. Because Purple K dry powder has a strong fire fighting effect, it can quickly and effectively control fires and ensure the safety of people's lives and property.
In general, there are various types of dry powder fire extinguishing agents, and each type has its specific scope of application and fire extinguishing effect. When selecting and using dry powder fire extinguishing agents, it is necessary to make comprehensive consideration according to the type and specific circumstances of the fire to ensure the fire extinguishing effect and safety.