Conventional flexitanks can cause the bulging of container sidewalls due to several factors related to their design and the nature of the transported liquids:
Uneven Distribution of Liquid Weight
- Dynamic Forces: Liquids inside conventional flexitanks shift during transportation, especially in rough handling or sudden movements. This creates lateral forces against the container walls.
- Inadequate Internal Restraints: Standard flexitanks lack internal mechanisms to evenly distribute pressure, which can lead to bulging as the liquid pushes outward.
Container Wall Limitations
- Structural Constraints: Standard shipping containers are designed to handle loads uniformly distributed along their frame, not for concentrated outward pressure. Conventional flexitanks exert significant stress on the side panels, which can lead to deformation.
Flexitank Expansion
As the tank expands to fit the available space, it presses against the weaker container walls.
Solutions to Prevent Bulging
Container Strengthening
Employing containers with thicker and stronger walls certified for flexitank use can reduce bulging. However, such containers are hard to find and costly, as shippers must often pay for returned containers.
Improved Flexitank Designs
Some modern flexitanks have technologies to minimize and control liquid movement, reducing dynamic pressure on container walls. This approach solves the problem at its source, rather than relying on external remedies.
How LiquA’s E-Flex Flexitanks Prevent Bulging
Innovative Design
LiquA’s E-Flex Flexitanks feature a large tubular design folded onto itself, instead of a single large pillow. This minimizes liquid movement and distributes pressure evenly.
Self-Standing, Pyramid Shape
The self-standing, pyramid-shaped flexitank prevents stress on the container walls and doors, ensuring compatibility with various container types and reducing the risk of structural damage.
Controlled Liquid Movement
The folding design includes holes that direct liquid downward instead of toward the container doors, ensuring circular movement along the container's length. This controlled movement eliminates pressure on the sidewalls.
Benefits of E-Flex Flexitanks for Liquid Shipping
- Reduced Container Damage: Minimized risk of sidewall bulging lowers maintenance costs and extends container lifespan.
- Versatility: Suitable for shipping various liquids, including food-grade products and industrial liquids.
- Efficiency: Quick setup and seamless integration with all container types make E-Flex Flexitanks ideal for safe, efficient liquid transport.
Ensuring Safe Shipping with Flexitanks
Shipping with flexitanks requires careful planning to maintain container integrity and ensure the safe transport of liquids. By selecting certified equipment like LiquA’s E-Flex Flexitanks and following manufacturer guidelines, shippers can prevent bulging and other structural issues, enhancing both safety and efficiency.
