DNV and ISO Tank Containers

Tank Containers are a robust transportation system for chemicals and liquids. Our offshore tanks are certified to the DNV 2.7-1 standard, which is the leading international certification for offshore use. We supply tank containers ranging from 2.500L through to 24,000L.

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What is a tank container?

An intermodal tank container is a safe and secure method of transporting liquids and gases – with easy transfer between road, rail and sea. These container tanks (or ‘tanktainers’) are built to the ISO standard or the stronger DNV rating.

Tanks comprise a stainless steel vessel with insulation and protective layers, based on their intended cargo.

With options for between 2,500 and 24,000 litres of total capacity, the tank container can be used for food grade liquid storage and transport as well as the storage of hazardous liquids and other materials. Cargostore offers both DNV Certified and ISO certified tank options for both offshore and onshore use.

What are tank containers used for?

ISO and DNV tank containers can be used for:

  • food-grade liquid storage and transport
  • perishable cargos such as milk – using tanks modified to include refrigeration capabilities
  • hazardous and non-hazardous gases, liquids and other materials such as powders.

These stainless steel tanks can be cleaned thoroughly between each use. DNV tank containers are recommended for offshore work.

How much does a tank container cost?

ISO tank containers cost more than the equivalent-sized ISO CCU due to their complexity. Tank containers are manufactured from stainless steel (including the fittings) rather than the weathering steel used for normal CCUs. Furthermore, the build time for tank containers is longer. DNV tanks cost more than ISO tanks because they need to be stronger for offshore work.

How much does an ISO tank hold?

Most (95%) tank containers are 20ft long. They can also be manufactured to 10ft, 30ft, 40ft or 45ft. Tanks must be filled to a minimum 80% capacity during transportation. Capacity cannot exceed 95%, to allow for thermal expansion.

Cargostore T11 ISO tank containers are available to 26,000L capacity. DNV tank containers range from 2,500L to 20,000L.

What is an IMO Tank?

An IMO (International Maritime Organization) tank is simply another name for a tank container. There are nine IMO classes for dangerous goods and hazardous cargos.

These classes cover explosives, gases, flammable liquids, flammable solids, oxidising substances, toxic, corrosive, radioactive and other hazardous materials. The nine classes are divided into various sub-classes (ie, infectious substances).

Contact Cargostore Worldwide today to discuss how we can support your project with our wide range of DNV and ISO Tank Containers. Email us at info@cargostore.com or call +44 (0) 208 879 1900