Retention tanksRetention tanks

Retention tank

The flexible retention tank acts primarily as a double wall for flexible tanks. It is mainly used for liquid fertilizer tanks, oil storage tanks and fuel bladder.

Indeed, in case of a problem during the use of the flexible tank, the losses of fuels and oils are retained in the retention. Thus, the impact on the environment is minimized. 

The flexible retention is a tailor-made solution. Several flexible tanks can be installed in the same retention tank depending on the dimensions.

Secondly, the retention tank can also contain rigid elements. Oil processing machines (or other fluids) as well as transformers and hydraulic systems can be installed there. During maintenance, they are isolated from their environment.

These flexible retention are equipped with a metal frame made of galvanized steel. It is made of identical tubes and joints that make it easy to assemble. The flexible bund is easy and quick to deploy, about 20 minutes, and requires only 2 people for installation.

The retention can be accompanied by a drainage and rainwater filtration kit. This kit allows to filter hydrocarbons from the rainwater contained in the retention. Also, it allows the retention to remain empty and clean.



  • Compact
  • Limited logistics footprint
  • Already in operation at mining facility depots


  • Resistant to harsh weather conditions


  • Quick and easy to deploy (20 minutes)
  • Only two people required to install it

Detailed information

  • Material: PVC cloth material
  • Assembly: high-frequency welding
  • Temperature resistance: -30°C to + 70°C
  • Standard storage capacity: 5 to 353 m3
  • Tailor-made is possible > contact us
  • Accessories:
    • 1 PVC liner
    • 1 galvanized steel metal structure
    • 1 tool kit
    • 1 repair kit

Technical informations

Capacity (m3) Dimensions (mm) Weight (kg)
5 3000x3000x500 80
7 4500x3000x500 101
17 7500x4500x500 168
18 6000x6000x500 169
23 7500x6000x500 193
32 7500x6000x700 193
39 7500x7500x700 218
57 9000x9000x700 270
66 10500x9000x700 296
77 10500x10500x700 324
88 12000x10500x700 352
113 13500x12000x700 411
139 16500x12000x700 470
236 22500x15000x700 667
353 24000x21000x700 864

You can not find your dimensions

Our design department employs the best project leaders and designers and will be pleased to develop and create a tailor-made product specially for your unique project.


Composition / Advice

Care during use
Avoid any contact with surfaces that are too abrasive or have cutting edges. Never exceed the product’s rated capacity. Refer to the Installation manual.
Maintenance tips
Refer to the Installation manual.
Storage tip
The liner should be stored on a clean surface, in a dry environment, protected from UV light, at ambient temperature.

Standards / regulations

ISO 9001, ISO 140001, ISO 45001.
1 year against all manufacturing defects .


Fact Sheets / Business Guides
  • This field is for validation purposes and should be left unchanged.


Draining/filtering kit
We use cookies to allow you to visit and use our site. Certain cookies are necessary for its functioning and cannot be deactivated. Other data collection cookies help us to improve the relevance of our content. These cookies are only activated if you consent to their use by clicking below.
Ces cookies permettent de suivre le parcours utilisateur, le passage sur un site pour une évaluation et une stratégie marketing.
Ces cookies permettent d'obtenir des statistiques de fréquentation anonymes du site afin d'optimiser son ergonomie, sa navigation et ses contenus.
Refuse all