Scope of application: apply to the general class B fire, fire products such as oil, grease, etc, can also be suitable for class A fires, class B fire but not fighting the water-soluble flammable, combustible liquid fire, substances such as alcohol, ester, ether, acetone, fire; It is also unable to fight and rescue electrified equipment and class C and class D fires.
Portable use: can carry the upper part of the drum ring, quickly rush to the fire. At this time should pay attention not to make the fire extinguisher excessive tilt, not to hold sideways or upside down, in order to avoid the mixing of the two agents and spurt out ahead of time. When it is about 10 meters away from the ignition point, the cylinder body can be turned upside down, with one hand holding the lifting ring and the other hand holding the bottom ring of the cylinder body, and the jet can be aimed at the burner. When extinguishing a combustible liquid fire, if it is already burning in a flowing state, the foam will be sprayed from far to near to completely cover the burning liquid surface. If it burns in the container, the foam should be shot into the inner wall of the container, allowing the foam to flow along the inner wall and gradually cover the surface of the ignition fluid. Do not spray directly on the liquid surface, so as not to be impacted by the jet flow, but the burning liquid will be washed away or out of the container, expanding the scope of combustion. When fighting a fire of solid matter, the jet should be directed at the burning most violent place. As the effective spray distance is shortened, the user should gradually approach the burning area and spray foam on the burner until it is extinguished. When used, the fire extinguisher should always be kept in an inverted state, otherwise the spray will be interrupted.
Portable foam extinguishers should be stored in dry, cool, ventilated and convenient places, not near high temperatures or places that may be exposed to the sun, in order to prevent the decomposition of carbonic acid and failure; Anti-freeze measures should be taken in winter to prevent freezing; And should often wipe off the dust, dredge the nozzle, keep it free.