Advantages of Flexitanks vs. ISO Tanks

Posted by: miamiseo
Category: Flexitanks, bulk liquid transport
Why Are Flexibags and Flexitanks the Best for Bulk Liquid Transportation

To permit efficient transportation of bulk liquids, you can use flexibags for sale or ISO tank containers. However, based on where the shipping initiates and the shipping content, one method would be more practical than the other.

In particular, the transportation of bulk liquids is an imperative sector of the transportation industry. Depending on the product you’re shipping, its origin, and the destination, the most economical and dependable mode of bulk transportation might not be apparent.

While flexibags and ISO tank containers both serve the role of transporting bulk liquids efficiently, some distinct differences exist between the two. While many people have a difficult time trying to decide between flexitanks and ISO containers when it comes to bulk liquid transportation, we recognize that the decision between the two depends on various factors and both have benefits.

If you’re wondering whether to use flexibags for sale or ISO tanks, here’s a look at the benefits of flexitanks.

What are ISO Tanks?

These stainless-steel-made containers feature various kinds of protective layers to help transport bulk liquids. They have a manhole on top together with a valve and are cylindrical. Their construction adheres to ISO standards and they can accommodate between 21,000 and 40,000 liters of liquid.

However, they don’t have a significant disposable liner, which exists in our flexibags. They’re purposely constructed to offer transport solutions for foods and bulk liquids. Furthermore, they can transport non-hazardous and hazardous bulk liquids.

At times, they have lining to decrease corrosion and wear from the contents and they might be refrigerated, insulated, or pressurized for cargo protection.

What Are Flexitanks?

Flexitanks are collapsible, hermetically sealed, and flexible bladders that can fit in a typical 20 ft. intermodal container. Typically, they transport food-grade liquids but can also accommodate non-edible liquids. Our flexibags for sale are available in various sizes with typical volumes ranging between 16,000 and 24,000 thousand liters.

Flexitanks vs. ISO Tanks

Both options have their role in transporting bulk liquids and the decision to choose one over the other depends on the kind of product as well as the destination or origin of the shipment. Since both containers can accommodate bulk liquids, one method can be preferable over the other. You’ll discover that our flexibags for sale are cost-effective when dealing with non-hazardous products depending on the destination or origin.

Since repositioning tank containers to the origin is expensive, this increases ocean freight costs, making flexitanks a better option in this case.

Benefits of Flexitanks

Low cost

Flexitank use entails low costs, unlike other options for transporting bulk liquids.


When it comes to operation, our flexibags enable easy operation. Also, unloading and loading are somewhat easy and don’t require considerable time or effort.

Environmental Friendliness

Flexibags are clean and green, making them environmentally friendly. Furthermore, you can count on our containers to prevent pollution.

Increased Payload

Our flexibags provide approximately 40% more payload than barrels or drums, with capacities ranging between 16,000 and 24,000 liters.

Minimal labor cost

The cost of labor involved in using and operating flexitanks is lower, making them effective in transporting bulk liquids.

Sanitization Standards

When it comes to flexitanks, particular sanitization standards exist. It’s worth noting that the tanks’ bladders are meant for one-time use. Therefore, we don’t have to worry about purchasing new tanks for different shipments.

In the case of ISO tanks, they need thorough cleaning and certification. This process can cost the recipient up to $100. ISO tanks further need particular sanitization procedures and their valves need frequent inspection before cargo loading takes place to ensure safety and compliance.

Advantages of Flexitanks vs. ISO Tanks

Benefits of ISO Tanks


A benefit of using ISO tanks over flexitanks is that they might comprise up to six compartments. The additional compartments make them suitable for the transportation of petroleum products since it’s possible to transport numerous grades in a single trip.

Delivery Options

With ISO tanks, a wide range of delivery options exists with chassis and tank trailers because a similar product for delivery to different customers might be aggregated.


ISO tanks are usually more durable and their lifespan is approximately 30 years, unlike flexibags which undergo disposal after transporting liquids.

Factors to Consider When Deciding between ISO Tanks and Flexitanks

Product Compatibility and specification

The choice between flexitanks and ISO tanks depends on the product you’re transporting. Specifically, our flexibags for sale can only accommodate non-hazardous liquids while ISO tanks can accommodate both hazardous and non-hazardous liquids.


Flexitanks comprise recyclable plastic since they’re single-use to prevent the likelihood of cross-contamination. On the other hand, ISO tanks need cleaning to prepare them for subsequent shipments. Cleaning ISO tanks consumes a lot of resources and energy because this process must take place at an accredited and approved depot.

However, they’re reusable, giving them a longer lifespan than flexitanks. Nonetheless, the recyclability nature of flexibags makes them an environmentally friendly choice.

Equipment Availability and Budget

ISO tanks typically form part of a fleet and transportation is necessary on a ship to the intended destination. On the other hand, it’s possible to mail flexitanks in the post because they’re foldable.

To transport bulk liquids efficiently, you might choose between ISO tanks and flexibags. However, based on the area where shipping is initiated and the shipping content, one of the modes would be more viable than the other. Although both methods are beneficial in bulk liquid transportation, you can expect differences between the two choices. If you’re looking to transport bulk liquids, you can count on our reliable services.

Author: miamiseo