External Floating Roof Tank Pontoon

The roof rises and falls with the liquid level in the tank.

External floating roof tank pontoon.

As opposed to a fixed roof tank there is no vapor space in the floating roof tank. The sketches shown illustrate the above single deck and double deck floating roof with the critical components for these structures. It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. The low single deck is the more efficient of the two for 30 to 170 foot diameter tanks.

For more than four decades advance tank has repaired and installed internal and external floating roofs that range from 15 to 300 in diameter. In my humble opinion the double deck arrangement would be a more robust design but may cost extra and a detailed techno economic evaluation would be needed to arrive at the optimum option. Diameter to store crude oil. We offer two types of tank internal floating roofs ifr s manufactured by matrix applied technologies our heavy duty pontoon type internal floating roof and the full contact type internal floating roof each has been designed to overcome the many design problems that exist in other well known brands ifr s offering value for money through low cost of ownership and long term durability.

Beside ergil storagetech floating roof s economic benefits they also protect the environment by not releasing toxic gasses to the atmosphere. At matrix applied technologies we custom engineer our heavy duty pontoon internal floating roofs to meet the most demanding environments even regions where earthquakes are likely to occur or where an aboveground storage. Roof designs shown have been used in tanks as large as 345 ft. Double deck pontoon roofs which are designed with concentric annular pontoons with radial bulkheads in each pontoon section.

In principle this eliminates tank breathing loss and greatly reduces the evaporative lo. The two preferred configurations for external floating roofs are the double deck and the low single deck with 30 minimum pontoon area. Our maintenance teams can replace damaged legs seal weld pontoons repair leaks replace your outer rim and more. Sketches are provided in the article depicting the pan type pontoon and double deck arrangement for external floating roof tanks.

An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate.