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Fixed foam extinguishing requirement

High expansion foam for deck 
  • Fill the greatest space to be protected at a rate of 1 mtr  in depth per minute.
  • Quanity of foam should be sufficient to produce volume of foam equal to five times the volume of the largest space to be protected.
  • The expansion ratio shall not exceed 1000:1
Low expansion foam for deck:-
  • The expansion ratio should not be 12:1.
  • The system shall be capable to discharging through fixed discharge outlets in not more than 5 minutes. 
  • A quantity of foam sufficient to cover to a depth of 150mm the largest single area over which the oil fuel is liable to spread.

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