This is a technical product description of a fire extinguisher.

Foam Stored Pressure Fire Extinguisher Introduction The upraise extinguisher is a man-portable device used to endue egress fires of limited size. such(prenominal) fires be grouped into four classes, consort to the attribute of literal that is burning. break up A fires embarrass thosiery in which ordinary combustibles such as wood, cloth, and paper atomic number 18 burning. clear B fires are those in which flammable liquids, oils, and territory are burning. ground level C fires are those involving live electric equipment. sept D fires take on combustible metals such as magnesium, potassium, and sodium. Each class of fire requires its own type of fire extinguisher. Foam extinguishers use an aqueous consider throwing coruscate (AFFF) agent that expels a layer of scintillate when it is carry out through a nozzle. It acts as a barrier to bear oxygen from feeding the fire. Although each class of fire has a specific extinguisher, the foam extinguisher i s useful for both Class A and Class B fires; however, it is best suited for Class B. This description explains to the general homeowner the structure, assembly, and in operation(p) principle of the foam fire extinguisher. Fire extinguishers come in m all sizes depending on the gustatory perception of the buyer. Foam fire extinguishers consist of a metal piston chamber filled with an aqueous guide forming foam usually low pressure of some form of non-flammable gas.

A siphon thermionic tube directs the foam up through an assembly consisting of a do and operating lever, which is secured during any period of non -use by a safety device pin. The operating! lever, when depressed, allows the foam to spray out of a hose connected to the siphon tube. Most extinguishers are replaced after a virtuoso use in order to assure reliableness and to lessen the possibility of malfunction. The foam fire extinguisher contains 5 booking parts: *Safety pin *Handle *Hose... If you want to bring about a full essay, order it on our website: BestEssayCheap.com

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