The Bulk Liquid OTI NVOCC Specialist

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Flexitank, Inc. info@flexitank.com Tel. 787.788.7050 Fax. 787.788.7045

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Intermodal Tanks

Intermodal tanks are so called because of their ability to be transferred as a regular container, between trucking, railroad, and marine vessels without affecting its contents.

Flexitank, Inc. operates two types of 20' intermodal tanks:  

      1- Rigid (ISO)

Due to their ability to safely handle a huge spectrum of products, from extremely hazardous liquids to compressed liquified gases, the 20' ISO tank is the undisputed workhorse in the intermodal tank industry. 

There are several types of ISO tanks: 

  • IMO 1 = For hazardous products

  • IMO 2 = For non-hazardous materials
  • IMO 5 = For compressed liquified gases 

Strictly dedicated IMO 1 or IMO 2 tanks for compatible edible products are used as food grade tanks. In addition, Flexitank has designed special ISO tanks for specific services. Specially designed tanks for aviation gasoline and Toluene Diisocyanate are two such examples. Most tanks are also equipped with heating capabilities. ISO tank barrels are typically constructed from stainless steel, except for the IMO 5's, which are all steel.

2-  Flexible

 

This equipment consists of a pillow type tank inside a 20' dry container, typically in the 21,000/25,000 liter range, which could be constructed from a nylon/polyurethane composite material (thermoplastic) or from rubber (elastomer). There are disposable versions of the thermoplastic tank but generally they are extensively re-used. Although they can be washed, dedicated service is highly recommended.

Flexible tanks cannot be used to transport hazardous materials.

Shippers are usually skeptical about using flexible tanks for permissible products, especially if they are potentially deleterious to the environment.

Flexitank recommends flexible tanks for products sensitive to air exposure, such as latex, and for long routes where the lower capital costs result in substantial savings.