Fast Flow Extinguishers: Difference between revisions

Revision as of 17:34, 27 December 2012

Revision as of 21:36, 29 December 2012

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Commonly referred to as "Fast Flow" or "High Performance" extinguishers. Available in {{convert|13.2|lb|abbr=on}}., {{convert|20|lb|abbr=on}}., and {{convert|30|lb|abbr=on}}. capacities and contain [[ABC Dry Chemical]], [[Purple-K]], or [[sodium bicarbonate]]. They are currently manufactured by Ansul in cartridge-operated form, andalong with Amerex and Badger in stored pressure design.

== UL Rating Differences for "Fast Flow" ==

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== Fast Flows and the NFPA ==

In the revised NFPA 10 section "2-3 "Application for Specific Hazards" requires "fast flow" extinguishers in locations containing pressurized flammable liquids and pressurized flammable gas Andand areas with three dimensional class B hazards. Pressurized gas and three dimensional fires require higher flow rates then standard extinguishers in order to be extinguished. The higher flow rate puts more agent onto the fire quicker and results in in a faster "knock-down" of the fire. Higher flow rates also provide more operator protection by putting a "heavier" stream of dry chemical in between the operator and fire. This creates a temporary "heat shield" as long as the agent is being discharged because of the light color of the agent it reflects most of the radiant heat back away from the operator.

==See also==