ocr: FIRE EXTINGUISHER HANDLEI NOZZLE Merigs SPRING RELEASE. VALVE TIRE! 2 CARTRIDGE DISCHARGE OTUBE TA BURN, a fire needs heat and oxygen. water-filled fire extinguisher works by removing these essentials; the water reduces the temperature ofthe fire, and its rapid evaporation creates a blanket of steam to smother the Hlames. Operating the WATER extinguisher punctures a gas-filled bulb, raising the pressure inside the cylinder and forcing the water out onto the fire. Other types of ALSO SEE extinguishers use powder, foam, or gas to smother the Aames.
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