An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. It comprises an open-topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. 

External floating roof is the most suitable for large crude oil storage tank. 

Possible volume: from 50 to 20 000 m³

Compared with internal floating roof tank, external floating roof tank has the following advantages:

• Compared with fixed roof tank without a floating roof, there is no evaporation space in external floating roof tank, eliminating the so-called “big breathing loss” in principle.

• Evaporation can not only resulted in the loss of product quantity, but also affects product quality, and pollute the environment simultaneously. It is prone to explode when space combustible medium mixed with air reaches a certain limit, so it is a necessary measure to fix a external floating roof on the open top cylindrical steel tank.

• Possible volume: from 50 to 20 000 m³

• Liquid medium: liquids such as naphtha, kerosene, diesel, and crude oil etc.

• Working pressure: atmospheric storage tank

• Working temperature: -60С - 270С

• Material classes:сarbon, stainless steel

• design
• manufacturing
  
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• commissioning work
• safter-sales and maintenance service

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