Domed External Floating Roof Tank

It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid.

Domed external floating roof tank.

Although the efrt may have a lower initial cost than the ifrt it may not have the lowest total ownership cost when long term operating costs maintenance costs and potential risks are considered. Horizontal external floating roof domed external or covered floating roof internal floating roof variable vapor sp ace and pressure low and high. As with the internal floating roof tanks the function of the fixed roof is not to act as a vapor barrier but to block the wind. Specifically it is an environment friendly and economical storage tank or oil tank installed a floating roof under the vault of the tank usually made of aluminum stainless steel or other material to prevent the.

Loss mechanisms associated with each type of tank are described in section 7 1 2. Domed external floating roof tanks usually result from retrofitting an external floating roof tank with a fixed roof. The type of fixed roof most commonly used is a self supporting aluminum dome roof which is of. An existing external floating roof tank efrt can be converted to a covered ifrt by retrofitting it with a fixed roof or aluminium dome roof cover.

The roof rises and falls with the liquid level in the tank. A brief description of each tank is provided below. As with the internal floating roof tanks the function of the fixed roof is not to act as a vapor barrier but to block the wind. Domed external floating roof tanks usually result from retrofitting an external floating roof tank with a fixed roof.