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Fire Streams

Fire Streams. Module 1. HOW FIRE STREAMS WORK. Water fire streams are used to reduce temperatures and to permit closer proximity with handlines through— Direct application to burning material Reduction of high atmospheric temperature Dispersion of hot smoke and fire gases from a heated area

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Fire Streams

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  1. Fire Streams Module 1

  2. HOW FIRE STREAMS WORK • Water fire streams are used to reduce temperatures and to permit closer proximity with handlines through— • Direct application to burning material • Reduction of high atmospheric temperature • Dispersion of hot smoke and fire gases from a heated area • Production of a water curtain to protect firefighters and property from heat

  3. TS 13–2b EXTINGUISHING PROPERTIES OF WATER (cont.) • Is unique in that it expands both upon freezing and upon changing into its vapor state • Water in pipes subject to freezing may rupture • Undrained automatic sprinkler piping in unheated buildings • Wet barrel hydrants • Shallowly buried underground pipes • Its 1700:1 expansion ratio during vaporization allows it to absorb more heat

  4. Is surge created by suddenly stopping the flow of water through fire hose or pipe Is often heard as a distinct clank, much like a hammer striking pipe Causes a change in direction of energy and multiplies the energy many times Can damage pumps, hoselines, water mains, couplings, nozzles, and hydrants Can be prevented by operating nozzle controls, hydrants, valves, and hose clamps slowly WATER HAMMER

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