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| DAMAGE CONTROL MUSEUM |
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DC EQUIPMENT
Museum
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| Firefighting Equipment |
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| Chemical Charge Foam |
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| The Type II chemical charge was used with the twin twenty
foam installation (TTFI). The charges, one consisting of
aluminum sulfate and the other bicarbonate of soda, were mixed
with water and a stabilizing solution before filling the
cylinders of the TTFI. The aluminum sulfate was mixed with 19
gallons of hot fresh water, while the bicarbonate of soda was
mixed with 19 gallons of cold fresh water to form the solutions
needed in the installation. |
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| The Type III chemical charge was used with
continuous foam generators, including the foamite
generator, Model 15NC, and the foam generator, Model
S-21. One 50-pound bucket contained the powdered
chemical charge that was poured into the hoppers of
either the generator, where it was mixed with water to
form a foam solution. One charge lasted about three
minutes and could produce up to 500 gallons of foam. Ten
spare charges were on the allowance for each continuous
foam generator. |
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| The Type IV chemical charge was used with the phomene
accumulator and foamaster accumulator. One foam powder charge
was contained in a 50-pound cylinder. The powdered chemicals
were mixed with water in the cylinder of the pressure-operated
foam generators. One charge lasted about three minutes and
provided 300 to 500 gallons of foam. Ten spare charges were on
the allowance for each pressure-operated foam generator onboard. |
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For more information, see the
Index. |
