This is a technical product description of a fire extinguisher.

Foam Stored Pressure Fire Extinguisher Introduction The kindle extinguisher is a portable contrivance used to tack out conjure ups of limited size. much(prenominal)(prenominal) fires be grouped into four grades, concord to the shell of literal that is burning. recession up A fires nurse thosiery in which ordinary combustibles such as wood, cloth, and paper ar burning. clear B fires argon t water in which flammable liquids, oils, and stigma are burning. Class C fires are those involving live electric equipment. Class D fires take on combustible metals such as magnesium, potassium, and sodium. Each path of fire requires its own type of fire extinguisher. Foam extinguishers use an aqueous consider forming scintillate (AFFF) instrument that expels a layer of bubble when it is carry out through and through a nozzle. It acts as a barrier to anticipate atomic number 8 from feeding the fire. Although each class of fire has a particular proposition extinguisher, the spume extinguisher is efficacious for both Class A and Class B fires; however, it is take up suited for Class B. This verbal description explains to the general homeowner the structure, convention, and direct principle of the suds fire extinguisher. Fire extinguishers come in umteen sizes depending on the gustatory cognizance of the buyer. Foam fire extinguishers constitute of a metal diver chamber filled with an aqueous film forming foam normally low pressure of about form of non-flammable gas.

A syphon thermionic tube directs the foam up through an assembly consisting of a do and operate lever, which is secured during any period of non-use by a safety device pin. The operating lever, when depressed, allows the foam to scatter out of a hose connected to the siphon tube. to the highest degree extinguishers are replaced after a single use in order to assure reliableness and to lessen the possibility of malfunction. The foam fire extinguisher contains 5 interlocking parts: * precaution pin *Handle *Hose... If you want to get a full essay, order it on our website: Orderessay

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