ISO Tanks

A tank container is built to the ISO standards, making them suitable for different modes of transportation. Both hazardous and non-hazardous products can be transported in tank containers.

Construction of an ISO Tank

Standard ISO Tank Containers are large stainless-steel pressure vessels held within a 20” steel frame that are used for the transportation and storage of bulk liquids, both food grade and chemical. Our ISO Tanks provide a safe, reliable and cost-effective way to transport bulk liquids both hazardous and non-hazardous.

The construction of ISO Tank Containers is to an extremely high standard and tested under the ISO standards by renowned surveying companies such as Bureau Veritas (BV) and DNV GL.

Their inner shells are manufactured from stainless steel which has a high resistance to corrosion. Tank Containers are cladded which provides insulation to its contents as well as protection from external impacts.

Benefits of ISO Tanks

Tank Containers very rarely leak. The risk of spillage upon loading, transportation and discharge is greatly reduced when compared against flexitanks and standard drums, making it the save SAFE option to transport chemicals.

An added benefit of Tank Containers are the pre-installed steam coils which allow for the efficient loading and discharge of temperature sensitive liquids such as Phenol.

A Tank Container can be typically loaded / unloaded within approximately 1.5 hours with minimum residue left, which makes ISO Tanks the preferred option to flexitanks and general drums in terms of handling and discharge.

ISO Tank

General ISO Tank Specifications:

  • Maximum gross weight: 36,000 kg
  • Loading capability: approximately 25,000 litres
  • Tare weight: 3600-4000kg average
  • Dimensions: 20’ x 8’ x 8’6”
  • Bottom Discharge: Outlet 3" BSP stainless steel foot-valve and 3" clamped butterfly valve
  • Top Load / Discharge: 2” or 3” Top discharge connection
  • Steam working pressure: 4.0 bar
  • Test pressure: 6.0 bar
  • Maximum cargo temperate: 100-130 degrees C
  • Manlid: 500mm (20") diameter


Intermediate Bulk Container

An intermediate bulk container (or IBC) is a pallet mounted, industrial grade reusable container that is used for storing and transporting bulk liquids. The IBC is capable of stacking and can be moved by a pallet jack or forklift.

Most IBCs are cube-shaped, and this cube-shaped engineering contributes to the packaging, stacking, storing, shipping and overall space efficiency of intermediate bulk containers. Rigid IBC totes feature integrated pallet bases with size dimensions that are generally very near to the multi-nationally accepted pallet length.

Almost all rigid IBCs are designed so they can be stacked vertically on top of each other using a forklift. Most have a built-in tap (valve, spigot or faucet) at the base of the container to which hoses can be attached or through which the contents can be poured into smaller containers.

IBCs provide a reliable and consistent way to handle and store liquids.



Flexitanks (also called Flexibags) offer an alternative to ISO tank containers for shipping oils, juices, wines, food-grade liquids and non-hazardous chemicals across the globe.

Flexitanks are usually loaded into 20' ISO containers for maritime transport. Sizes range from 16,000 to 26,000 litre in capacity.

A product data sheet (MSDS) is needed to check if the product is compatible with the materials of the flexitank. Also, we will ensure that a flexitank with the correct cubic capacity is used in order to maximise the payloads, depending on the product’s specific gravity.

Professional installation by trained staff is essential.

Benefits of using Flexitanks

  • Cost-effective – Flexitanks are cheaper to use compared to drums, IBCs and tank containers
  • Keeps product quality intact – For an optimal protection of your cargo, each Flexitank consists of several layers of polyethylene, with an outer layer made of polypropylene to ensure the bag's sturdiness
  • Offer better protection against contamination – As flexitanks are designed for single-use the risk of contamination is reduced considerably
  • Makes loading/unloading faster – It does not require the use of a forklift to load or unload container which makes loading and unloading faster and cheaper as compared to the cost of using drums and IBCs
  • No cleaning cost – As the bags are disposable, there is no cleaning cost when using flexitanks
  • No additional storage required – When using flexitanks no additional storage is required as flexitank in itself is a reliable storage unit