2FoamSolution of air, water, foam concentrate, and mechanical agitation used to form a floating ‘blanket’ on flammable and combustible liquids. It prevents or extinguishes a fire by excluding air and cooling fuel. Foam also aids in preventing reignition by suppressing flammable vapors.
3Terminology Foam concentrate - from factory Foam solution - water + concentrateFinished foam solution water + concentrate + mechanical agitation
33Chesapeake’s First Foam Unit Property of ShellUtilized a dry powder hopper which worked off of a venturi effectCarried A & B foam
34Foam 35 Donated by the Department of Civil Defense. It carried an extinguishing agent called “Purple K” which is located in the center dome shaped container.It also carried the A & B type foam powder.
35Engine 6 Chesapeake Fire Department’s third foam unit Manufactured in house by CFD Personnel
36Foam 12 Foam 12 - 1978 Pem-Fab / National Foam Designed with a balanced pressure system1000 GPM pump275 gal. Water tank128 GPM Foam pump with 550 gallons of Universal GoldCurrently assigned in the Western Branch area
37Engine 1 1993 Pierce / National Foam Unit Has a balanced pressure system2000 GPM water pump with 500 gallons water250 GPM foam pump with 500 gallons Universal Gold
38Foam 1 1973 Chevrolet Carries 1400 gallons of XL-3 type foam Also carries a limited supply of foam appliances