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The internal floating roof tank (IFRT) was developed in the mid-1950s to provide protection of the floating roof from the elements, including lightning strikes to the floating roof.
An internal floating roof tank (IFRT) is a type of storage tank that has a fixed roof and a floating roof inside the tank. The floating roof rests on the liquid surface and moves up and down as the liquid level in the tank changes.
The fixed outer roof protects the inner roof from weathering and corrosion, while the internal floating roof (IFR) keeps the liquid safe and vapor sealed inside. IFRs are designed to cover the entire surface of the stored liquid and move with the liquid level changes.
An internal floating roof tank has both a permanently affixed roof and a roof that floats inside the tank on the liquid surface (contact deck) or is supported on pontoons several inches above the liquid surface (noncontact deck).
Storage tanks systems may require an internal floating roof and a fixed or permanent roof system. The floating roof is used in the tank structure and is floating on the liquid stored within the tank. The floating roof rises and falls with the liquid level within the tank achieving a no vapor zone.
Understanding how floating roof tanks work is essential for ensuring efficient storage and minimizing environmental risks. In this article, we’ll delve into the mechanics of floating roof tanks and explore their operation in detail.
What are Internal Floating Roof (IFR) tanks and External Floating Roof (EFR) tanks? IFR tanks are storage tanks with a floating roof positioned inside the tank, which moves with the liquid level to minimize vapor emissions and reduce evaporation.
ALLENTECH is a privately held manufacturer and erector of internal floating roofs and perimeter seal systems for above-ground storage tanks and covers for API separator basins.
Internal Floating Roof Tanks (IFRs) These all-weather tanks have an exterior domed or conical roof that shields the interior floating roof from loading by sand, rain, or snow. Additionally, they separate the contents from the environment, reducing the dangers of air pollution and combustion.
Internal floating roofs (IFRs) come in various designs to suit different storage tank applications. The three main types of IFRs are steel, aluminum, and full contact. Each type offers distinct advantages and features that make them suitable for specific industry requirements.