Low Expansion Foam

Where low expansion foam systems are fitted in addition to the machinery space fire protection requirements, they must produce a 150 mm depth of foam, over the largest single area that oil fuel could spread, within 5 minutes. The expansion ratio is designed not to exceed 12:1.

Typical low expansion foam systems include Tanker cargo deck areas and Helicopter landing platforms.  The foam flow rates, discharge devices and discharge times are determined by the size and type of risk involved.

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