Floating Roof Double Deck Pontoon

A double deck type floating roof has two complete decks covering the entire liquid surface.

Floating roof double deck pontoon.

Types of external floating roof consist of. The low single deck is the more efficient of the two for 30 to 170 foot diameter tanks. The sketches shown illustrate the above single deck and double deck floating roof with the critical components for these structures. Double deck pontoon roofs which are designed with concentric annular pontoons with radial bulkheads in each pontoon section.

The roof is consisted of a portion divided by the ring and radial bulkheads into several compartments and a portion called the flexible bay. It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. These include new builds together with the evaluation of existing roof designs for suitability such as analysing the various flotation cases and repair. Figure 1 4 single deck pontoon type floating roof bob.

Ergil storagetech internal floating roofs which minimize the evaporation losses of stored products such as jet fuels gasoline diesel and crude oil can be supplied as aluminium or stainless steel. The two preferred configurations for external floating roofs are the double deck and the low single deck with 30 minimum pontoon area. Pontoon type floating roofs are the most economical type of floating roofs in the market. External floating roof tank double deck type an external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate.

Single deck pontoon type figure 1 4 double deck figure 1 5 special buoy and radially reinforced roofs floating roof tank will be further discussed in details in later chapter.