What type of fire can not be used by foam fire extinguishers?
Fire extinguishing principle: when extinguishing, it can spray out a large amount of carbon dioxide and foam, they can adhere to the fuel, insulate the fuel from the air, and achieve the purpose of extinguishing the fire
The flame extinguisher is chemically mixed with an alkaline solution through the acid solution in the cylinder, and the foam is extruded out of the nozzle and ejected for fire extinguishing. In addition to fighting the general solid matter fires, it can also fight against flammable liquids such as oils and firesBut it can not save the fire of live equipment and organic solvents such as alcohols, ketones, esters and ethers.
Scope of application: it can be used to extinguish fire caused by burning wood, cotton and so on. Foam extinguisher
