External Floating Roof Tank Pontoon

For more than four decades advance tank has repaired and installed internal and external floating roofs that range from 15 to 300 in diameter.

External floating roof tank pontoon. The roof rises and falls with the liquid level in the tank. Types of floating roofs in storage tanks. It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. These are categorized as external floating roofs which are designed to meet requirements of api standards 650 appendix c.

An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. Floating roof is the core component of floating roof storage tank which is divided into two types. External floating roof and internal floating roof. 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 3.

Pontoon type floating roofs are the most economical type of floating roofs in the market. The floating roofs can be either external i e with open top tanks or internal i e inside fixed roof tanks. The principal types of floating roof designs which are installed in tanks which store crude and middle distillate products are summarized below. 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.

Tanks with external floating roofs are used primarily to contain liquids with high vapor pressures when the vapor emissions from fixed roof tanks would exceed the standards set by the local jurisdiction. Our maintenance teams can replace damaged legs seal weld pontoons repair leaks replace your outer rim and more. They float on the surface of the stored fluid and remain buoyant by means of pontoons around their perimeter or as double deck roofs with integral.