Each seal is customized to fit to the tank to ensure non gapping performance long life and safe operation.
Internal floating roof tank seals.
Liquid filled tube seals and foam log seals are the two main primary seal types.
Seals are used in different types and combinations suitable for pontoons and in double decked external floating roof tanks and pan terrace roofs or in fixed roof tanks with aluminum support.
Mechanical shoe seals and resilient filled seals i e.
Tank seals the first barrier against emission in the rim area of an external floating roof is the primary rim seal.
Internal floating roof wiper seal systems mesawedge primary and secondary wiper seal systems are designed to prevent product loss and atmospheric contamination from internal floating roof tanks ifrt.
It also serves at a safety device reducing the risk of combustible vapours in this area.
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 liquid from volatilize.
Operating since 1986 allentech is recognized worldwide within the petrochemical industry as the premier supplier of these custom roofs and accessories serving major oil companies and terminal operators in more than 60 countries.
External floating roof tank seals are normally divided into 2 different categories.
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.
Primary seal for floating roof tank a primary seal should be considered for all floating roof tanks and listed below are a variety of choices.
Mesawedge wiper seal systems meet or exceed environmental regulations and are designed to ensure effective operation in specific tank conditions.
Pantograph type primary mechanical horseshoe seal.
Primary and secondary ifr and efr seals hmt offers a full line of primary and secondary seals for both internal and external floating roof tanks.
Hmt offers multiple primary seal options for internal floating roof tanks.
