Double bottom tanks | Granby Industries - Double bottom tanks
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A double bottom is a ship hull design and construction method where the bottom of the ship has The space in between the two bottoms is often used as storage tanks for fuel or ballast water, though fuel storage in the double bottom is not. Air ventilator-heads from ballast and FO (double-bottom) tanks are fitted with a mechanism that prevents the free entry of water. The same mechanism allows the.