Flexitank, which is made ​​of polyethylene (PE) and polypropylene (PP), is a soft, high-strength, light-weight and disposable bladder used for the bulk shipments of non-hazardous liquid materials within a standard 20-foot ISO container. The installation of a 24,000-liter flexitank takes approximately 10-20 minutes. Once the installation is completed, it is merely a matter of connecting hoses to the flexitank and then turning on a pump to commence loading. Depending on the viscosity of the product, the loading period can take as few as 30-45 minutes. Once the loading is completed, the loaded flexitank within the ISO container can be transported by rail, road or ship.

1- High payloads, low weight and space.

2- No return, cleaning and demurrage cost.

3- Lower labor/time consuming for handling & loading.

4- Clean asepsis and no risk of contamination.

5- Environmentally friendly.

6- No forklift required.

7- Can be rapidly positioned by airfreight if urgently needed.




Automatic Air Vent Valve

Protective Outer Layer Upgrade

Our engineers tracked and tested 1000 flexitanks under different transportation modes and conditions. We made BLT flexitanks reflect the highest standards.

a) The protective outer layer of  flexitank is made of high-technical aramid fibers, which possesses an incomparable advantage for tension and softness against ordinary PP fiber.

b) A high strength zonal reinforcing rib which reflects an innovative upgrade in the safety area of flexitank is applied between each 10cm of the protective layer.

c) The protective outer layer of  flexitank is a 4-meter-wide single time integral molding bag which is safer and more reliable in comparison with traditional fission suture of PP protective bag.

With this technical innovation,  flexitank always performs well under normal conditions.

3-inch Ball Valve

Compare with butterfly valve, 3-inch ball valve seals tighter and has better resistance to pressure. Since the 3-inch ball valve has no block when it is opened, it makes liquid flow through freely and quickly.

In the joint position between the internal valve and flexitank, a safety protection device, which effectively prevents inner film layer from blocking the valve, is added, thus the residual liquid will reduce to a minimum after discharging.

Our technical team is continuously exploring the application and usage of flexitank. We have successfully developed the flexitank for loading high-temperature liquid at 150 degrees Celsius and the high barrier flexitank for the liquid which is sensitive to oxygen. In addition, we are willing to customize the products for our users.


Apply different types of material making of flexitank to different types of liquid.

Flexitank – Food Hygiene Grade

All the materials making of flexitank must comply with standards of food hygiene.

Flexitank – Chemical Grade

All the materials making of flexitank and valve must be corrosion resisting.

Flexitank – Oily Liquid

All the materials making of flexitank must be proper for the transportation of oily liquid.

Heat-Resisting Flexitank

All the materials making of flexitank must be proper for the storage and transportation of high-heat liquid.

Flexitanks is only proper for the transportation and storage of non-hazardous liquid, which includes

Food: wine, edible oil, concentrated juice, food additive, mineral water, malt extract, syrup, etc.

Industrial Oil: lubricating oil, lubricant additive, transformer oil, mineral oil, China wood oil (tung oil), glycerin, etc.

Non-hazardous liquid chemical: plasticizer, synthetic resin, propylene glycol, ethylene glycol, herbicide, fertilizer, natural emulsion, synthetic latex, etc

Standard Flexitank Specifications

  • Volume from 10,000 up to 24,000 liters
  • Single or multi-layered bladder made of polyethylene
  • Suitable to transport/store any non-hazardous and food grade liquids
  • Typically installed in 20’ standard sea container (TEUs)
  • Act as a temporary/permanent storage
  • Cargo loading temperature may vary from -20°c up to 80°c
  • Flexitank can be installed in a refrigeration container for temperature sensitive cargo
  • Compatible with heating pad, special equipment for low viscosity products

Certificates and Approvals

US FDA regulation, EC – European Certification, HACCP – Hazard Analysis and Critical Control Points, COA Standard Rail Impact Test, Kosher Certification, Halal Certification, Major shipping lines approvals, ISO 9001-2000 and ISO22000, COA Membership and Compliance.

Fully Insured

Production warranty insurance – up to 5 million USD; Professional indemnity liability insurance – up to 5 million USD; Third party liability insurance – up to 6 million USD; Product and pollution liability insurance – up to 6 million USD; Cargo Insurance – 110% of cargo value


The following options are available for custom-made flexitanks

  • single or multiple layers
  • top or bottom loading (BB-TT-TB)
  • additional  anti-oxidation protection
  • bulkhead options: carton/plastic/MDF
  • heating pad systems for hight-viscosity products
  • air venting system


Multiple Applications

• Food Grade Products (water, juices, concentrates, wines)
• Edible Oils (olive oil, palm oil, soybean oil, canola oil, corn oil, peanut    oil, sunflower oil, and other vegetable oils)
• Crops and Grains
• Non-hazardous Chemicals (petrochemicals, base oils, lubricants,    glycols, waxes, latex and more)

• Fertilizers (liquid and dry)
• Pharmaceutical products
• Dry Bulk Products


Flexitank Supply and Installation
  • Professional installation by SGS technicians
  • COA procedures and checklists for every installation
  • Container selection
  • Marking and Labeling
  • Technical services available at 1,800 locations around the globe


Technical Support and Hands-On Traning
  • Training for all flexitank systems
  • Site project development
  • Technical assistance: installations, discharge, troubleshooting
  • Trans-loading operations
  • Container surveys/Technical consultation
  • Cargo risk assessment