Integral Foam Dam (IFD)
An integral foam dam is a foam dam as bolted on to the rim of the floating roof. This allows foam dam installation and removal without any hot work to be conducted. It also reduces time required to fill up the space between foam dam and tank shell, as the foam dam is closer to the tank shell. Probably most important advantage is the fact that waxy product deposits or corrosion as scraped off the tank shell is no longer deposited on top of the floating roof pontoons, eliminating corrosive impact on the carbon steel pontoon deck plates. Bolted on foam dam have extensively been tested holding foam in full height required under NFPA 11, and we are able to supply bolted on integral foam dams in carbon steel as well as in stainless steel.