External Floating Roof Tank Seals

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

External floating roof tank seals.

Each seal is customized to fit to the tank to ensure non gapping performance long life and safe operation. Safety requirements of floating roof tank. Secondary seal for floating roof tank secondary seals are normally required for external floating roof tanks and may or may not be required when an external roof covers the floating roof. External floating roof seals.

It consists of an open topped cylindrical steel shell equipped with a roof that floats on the surface of the stored liquid. Hmt seal systems are customized for each specific tank with a variety of configurations component sizes and material options available to handle any application and stored product. Shoe seals also include wax scraper options. Different types of seals combinations are available to suit pontoon double deck external floating roof tanks fixed roof tanks with pan deck roofs or aluminium decks.

However some localities require a secondary seal on a covered floating roof if the primary seal is a vapor mounted seal. Seal systems are designed to meet environmental regulations and ensure efficient operation in specific warehouse conditions. Our sealing systems are customized according to the characteristics of each tank and requirements from our customers. 2 external floating roofs.

The first barrier against emission in the rim area of an external floating roof is the primary rim seal. External floating roof seals are designed to prevent product loss and atmospheric contamination in the form of air shields from above ground storage tanks. It also serves at a safety device reducing the risk of combustible vapours in this area. Hmt offers a full line of primary and secondary seals for both internal and external floating roof tanks.

Tank aluminum cover has a full range of primary and secondary seals for internal and external floating roofs. Hmt seals are well known as leading the industry in design quality craftsmanship durability and non. An external floating roof tank is a storage tank commonly used to store large quantities of petroleum products such as crude oil or condensate. The design of these primary seals is therefore very important.

External floating roofs shall be inspected as specified in paragraphs c 2 i through c 2 iv of this section. External floating roof tank seal external floating roof. During operation the floating plate is not allowed to run over the high level also should not be located in the low level to prevent the occurrence of a chuck or a floating plate sinking accident. I within 90 days after the initial filling of the storage vessel the primary and secondary rim seals shall be inspected as specified in paragraph d 3 of this section.

Hmt offers a multiple primary seal options for external floating roof tanks.