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.