PVC Flexible Tanks
Flexible tanks are a simple and cost-effective solution for external fire protection systems used by local authorities and industrial sites. However, they require significant ground space and must comply with applicable fire protection regulations. They are particularly suitable for public fire protection systems (DECI) in municipalities, hamlets, residential properties, agricultural buildings, and storage facilities.
- Cost-effective
- Practical and simple to install
- Customisable in terms of dimensions and accessories
- Compliant with fire protection standard NF S 62-250
What is a reinforced PVC flexible tank made of?
Flexible tanks are manufactured using high-frequency welding to assemble PVC-coated technical textile layers. Thanks to their low filling height (maximum 1.6 m), these tanks are self-supporting and do not require heavy civil engineering works. However, they must be installed on flat, level ground free from sharp or perforating elements, typically on a sand bed. Storage capacities range from 5 to 2,000 m³.
Composition and characteristics of PVC
The reinforced PVC consists of a technical textile based on a polyester fabric and double-coated with PVC. The polyester reinforcement provides the fabric with mechanical strength, while the PVC coating makes the material waterproof and chemically compatible, depending on the PVC formulation and surface treatment.
Types of flexible PVC tanks
We offer a wide range of PVC flexible tanks for various applications:
- Fire protection tanks
- Storage of liquid and pumpable effluents and wastewater
- Water storage (rainwater, irrigation, raw water)
Do you have a project?
Contact our team with details of your application and required storage capacity. We will assess feasibility and guide you toward the most suitable technical and economic solution.
FAQs - PVC Flexible Tanks
What are the differences between a flexible tank and a rigid tank?
Flexible tanks are more cost-effective than rigid tanks but require more floor space due to their low filling height (maximum 1.6 metres) and self-supporting design. Rigid tanks, on the other hand, require a structural shell but occupy a smaller footprint for the same storage capacity.
While PVC flexible tanks remain reliable, they are more exposed to external mechanical damage than rigid tanks, which are protected by rigid structural walls.
What capacity can a flexible PVC tank have?
PVC flexible tanks are available in capacities ranging from 5 to 2,000 m³.
Can PVC flexible tanks be used to store chemicals?
Chemical compatibility depends on the specific formulation of the PVC membrane and the nature of the stored liquid. A compatibility study is required to ensure safe and durable storage conditions. Our specialists can advise you on the most suitable solution.
