European Standards

The UNI EN 14015 standard is the European reference for the design, fabrication, and testing of vertical cylindrical welded steel tanks intended for the atmospheric storage of liquids in the industrial, energy, chemical, and environmental sectors.
This standard ensures that tanks are designed and manufactured according to strict criteria aimed at preventing leaks, deformations, and structural damage, thereby guaranteeing reliable and long-lasting performance over time.

UNI EN 14015 defines the conditions for the mechanical design of the main tank components (shell, bottoms, roof), taking into account static pressures, local depressions, environmental loads (wind, snow, seismic actions), and site installation methods. It also sets out the criteria for welding, non-destructive testing, dimensional tolerances, as well as safety devices such as vents, manholes, ladders, and guardrails.

Compliance with UNI EN 14015 is an increasingly required standard in the industrial and plant engineering sectors, both for new installations and for revamping or regulatory upgrading projects.
The entire process requires comprehensive technical documentation, testing and inspections in accordance with specifications, and constant quality supervision throughout all production phases.

Building tanks in accordance with UNI EN 14015 means ensuring operational reliability, environmental protection, and compliance with European technical standards, while enhancing project quality and plant safety.

Design for atmospheric storage (UNI EN 14015)
Tanks designed in accordance with EN 14015 provide high levels of tightness and durability for the atmospheric storage of liquids, including hazardous substances. The standard covers specifications on geometries, materials, accessories, and testing.

Leak prevention system
All the referenced standards include specific measures to prevent accidental leaks, through the use of double walls, safety devices, automatic controls, and inspection plans.

Monitoring and testing system
Functional and structural inspections are mandatory, including tightness tests, pressure tests, and final inspections, to ensure the suitability of the tank before commissioning.

Periodic inspections and maintenance
The standard requires tanks to undergo regular inspections by qualified technicians or notified bodies, with a frequency that varies according to the type of service and the risk category.

Technical documentation and traceability
Each tank must be accompanied by complete documentation certifying the materials used, the welding processes, the inspections carried out, and the maintenance plan, ensuring traceability and regulatory compliance.