What is Flexitank?

Update date:
22 Mar 2024
Date of publication:
22 Mar 2024
Reading time: 5 minutes

The Flexi tank, also known as flexitank or flexibag, is a rapidly growing alternative to traditional means of transporting and storing liquids. This innovative packaging solution has gained popularity in recent years due to its flexibility, cost-effectiveness and efficiency. But what exactly is a Flexi tank and what makes it the preferred choice in many industries? In simple terms, a Flexi Tank is a large, sack-like container made from different layers of polyethylene or other flexible materials that can hold up to 24,000 litres of liquid cargo. It is designed to fit into a standard 20 DV container, allowing for the easy and safe transport of liquids such as cooking oils, some chemicals and even wine. 

What can be transported in a flexi tank? 

Flexi tanks are used to transport a variety of liquid products that are not considered hazardous for road and sea transport. These include chemical products such as base oils, detergents, emulsions, paints, glycerine, herbicides, synthetic latex, lubricants, machine oils, liquid artificial fertilisers, paraffin wax and printing inks, as well as food products such as juice concentrates, beverages, vegetable oils, syrups and wines. A particularly popular cargo transported in flexi tanks is base oil, which is one of the most common commodities exported from Poland. Due to their flexibility and ability to transport larger volumes of liquids, flexi tanks are used in the global transport industry to safely and efficiently transport a variety of liquid substances.

Innovative solution for bulk liquid transport

Flexi tank is a modern and efficient solution for transporting liquids in bulk. It replaces traditional transport methods such as drums, tanks or cisterns, offering a number of benefits. Firstly, the flexi tank is easy to assemble and disassemble, saving time and labour. In addition, its flexible design allows for optimum use of space in containers, leading to greater transport efficiency. The flexi tank is also resistant to leaks and damage, ensuring the safe transport of liquids without loss or loss of quality. Thanks to its flexibility and durability, the flexi tank is an innovative solution that is becoming increasingly popular in the transport industry.

Economical and ecological alternative

The flexi tank is not only a state-of-the-art solution for transporting bulk liquids, but also a cost-effective and environmentally friendly alternative to traditional transport methods. Thanks to its reusability, the flexi tank contributes to reducing waste and minimising the costs associated with the purchase and disposal of disposable containers. In addition, the flexi tank enables optimum use of space in containers, resulting in fewer transported units and reduced CO2 emissions. This solution promotes a sustainable economy by eliminating the need to use traditional, less environmentally friendly transport methods. The economical and ecological alternative of the flexi tank is increasingly favoured by companies in the transport industry that are striving for efficiency and environmental protection.

Compatible with various shipping methods

The flexi tank is compatible with various shipping methods, making it even more flexible and adaptable to individual customer needs. Whether goods need to be transported by sea, rail or road, the flexi tank can be used as an efficient transport solution. Thanks to its design and flexible materials, the flexi tank can be safely transported on a variety of vehicles and modes of transport, ensuring reliability and protection of valuable cargo. This versatility makes the flexi tank a popular choice for companies in a variety of sectors that are looking for efficient and customised transport solutions.

Simple to assemble and dismantle in a container

In addition to its flexibility in terms of shipping methods, the flexi tank also stands out for its ease of assembly and disassembly in the container. Thanks to its special design and flexible materials, the flexi tank can be easily placed in a standard container, allowing it to be quickly and efficiently prepared for transport. The assembly and disassembly process is simple and does not require specialised equipment or skills. This feature makes the flexi tank a practical solution for companies that need a quick and convenient way to pack and transport their goods. The reliability and safety of the flexi tank in a container are guaranteed, making it a popular choice for transport companies with different needs and requirements.

How do I fill up the Flexi tank? 

The Flexi Tank is filled via a special valve, which is usually located at one end of the tank. This valve is designed to allow the fluid to be poured into the tank safely and efficiently. It is usually a multifunctional valve that acts as an entrance for the filling hose, as well as allowing fluid flow control and venting during filling.

Safe method of transport

A safe method of transport is an extremely important aspect for companies involved in transporting goods. Regardless of the type and value of the goods, there is a need for protection during transport to avoid damage and loss. The flexi tank, with its robust design and flexible materials, offers a safe solution for transporting a variety of goods. Thanks to the flexi tank's special design, which ensures that the load is evenly distributed and minimises the risk of cargo shifting during transport, companies can rest assured that their goods are adequately protected during the journey. A secure transport method such as the flexi tank allows companies to enjoy peace of mind and confidence, knowing that their goods will arrive at their destination intact.

Why use a Flexi tank? 

Above all, the use of flexi tanks reduces the cost of transporting liquids. It is more capacious and is particularly suitable when you want to send liquids over longer distances, e.g. to the USA, Africa, China or other very remote locations. Compared to other tanks, flexi tanks are often used for transporting food liquids such as water, fruit juices, cooking oils or certain types of chemicals.


In summary, flexible tanks offer a versatile and cost-effective solution for transporting bulk liquid goods. Due to their adaptability to different modes of transport and their high load capacity, flexible tanks have become a popular option for companies looking to transport liquids such as edible oils, beverages and industrial chemicals. Although there are some limitations to consider, overall, flexible tanks provide a convenient and reliable way to transport bulk liquids around the world. With advances in technology and increased demand for efficient transportation methods, it is likely that the use of flexible tanks will continue to grow and evolve in the future.

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