Page 260 - Introduction to Marine Engineering
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Foam
                             fire extinguishers—chemical
        foam
                                       13.5(a)
                                             Figure
 foam
 Figure
 13.5(b) Foam
 fire extinguishers—mechanical
 outlet
 Jet














 vinylchloride) bag
 PVC (poly-
 in
 concentrate
 Wet water
                                             Steel container
 container
 pressure
 Carbon dioxide
                 Inner
             container
 Pressure charge
                  Seal ing cap
 OP
 en
 Seal
                                   Nozzle
 Piercer
 Strike knob
 Safety guard
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