Single Deck Pontoon Type Floating Roof

The allentech hybrid stainless steel aluminum internal floating roof was developed for products which may be corrosive to aluminum in the liquid phase.

Single deck pontoon type floating roof.

Types of fixed roof tanks 8 figure 1 4. This hybrid skin pontoon type ifr is the same basic design as our aluminum skin pontoon ifr except that all submerged or partially submerged components are constructed of stainless steel. In single deck roof which shown above is also called pontoon roof the buoyancy is derived in the pontoon an annular circular pontoon radially divided into liquid tight compartments. The deck of single deck floating roofs shall be designed to be in contact with the storage liquid during normal operation regardless of the service.

Tank is clean gas and lead free and ready for hot work. Double deck type floating roof 10 figure 1 6. Doorsheet is a minimum of 8 high x 8 6 wide. Main two types of floating roof tanks single deck floating roof in single deck roof which is also called pontoon roof the buoyancy is derived by the pontoons according to api 650.

Single deck floating roof tank 12 figure 1 7. Fabricate install new single deck annular pontoon floating roof the screening estimates are based upon the following assumptions. The low single deck is the more efficient of the two for 30 to 170 foot diameter tanks. The annular pontoon is divided into several chambers by radial bulkheads.

A single deck type floating roof has an annular pontoon around the edge and a deck of single thickness in the center as seen in the diagram. Storage tank capacities and levels 15. Single deck pontoon type floating roof 9 figure 1 5. No hours are included for a dedicated fire.

The two preferred configurations for external floating roofs are the double deck and the low single deck with 30 minimum pontoon area. Double deck floating roof tank 13 figure 1 8. Different roof configurations were shown in figure 100 1.