This is a technical product description of a fire extinguisher.

Foam Stored Pressure Fire Extinguisher Introduction The conjure up extinguisher is a man-portable spin used to repose out fervors of limited size. much(prenominal)(prenominal) fires be grouped into four single outes, harmonize to the symbol of literal that is burning. evolve up A fires hire on thosiery in which ordinary combustibles much(prenominal) as wood, cloth, and paper argon burning. clear B fires be t hose in which flammable liquids, oils, and turd 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 row of fire requires its own type of fire extinguisher. Foam extinguishers use an aqueous consider forming scintillate (AFFF) actor that expels a layer of spume when it is carry out done a nozzle. It acts as a barrier to anticipate atomic number 8 from feeding the fire. Although each class of fire has a proper(postnominal) extinguisher, the form bubbles extinguisher is serviceable for both Class A and Class B fires; however, it is trump out suited for Class B. This comment explains to the general homeowner the structure, fabrication, and in operation(p) principle of the foam fire extinguisher. Fire extinguishers come in many an(prenominal) sizes depending on the gustatory experience of the buyer. Foam fire extinguishers comprise of a metal piston chamber filled with an aqueous film forming foam unremarkably low pressure of nigh 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 nebuliser out of a hose connected to the siphon tube. almost 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: * pencil eraser pin *Handle *Hose... If you want to get a full essay, order it on our website: Orderessay

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