En 14015 Pdf Online
EN 14015 is the primary European standard for the design and manufacture of site-built, vertical, cylindrical, above-ground, welded steel tanks used for storing liquids. It specifically addresses flat-bottomed tanks operating at ambient temperatures or higher, typically used for storing crude oil, petrol, chemicals, and water. Core Technical Scope
Key Technical Content
| Section | Focus | |--------|-------| | Clause 4 – Materials | Steel grades, impact testing, and allowable stresses (similar to but not identical to API 650). | | Clause 5 – Design | Shell thickness (1m method vs. variable-design-point), wind & seismic loads (Eurocode-based), roof types (fixed cone, dome, floating roofs briefly covered). | | Clause 6 – Fabrication | Tolerances, welding procedures (EN 1011-4), edge preparation, and dimensional checks. | | Clause 7 – Inspection & Testing | Radiography (RT) requirements, vacuum box testing of bottom plates, hydrostatic test (1.25 x design pressure or 1.1 x max fill). | | Annexes | Annex A – Alternative shell design (variable point method). Annex B – Anchor bolt chairs. Annex C – Frangible roof design (for overpressure protection). | En 14015 Pdf
10. Limitations of EN 14015
- Not for refrigerated liquids (use EN 14620).
- Not for spherical or horizontal tanks.
- Not for pressures > 0.5 bar gauge.
- Does not include internal corrosion protection (linings, cathodic protection) – must be added separately.
- Seismic design not detailed – must use Eurocode 8.
- Crude oil
- Petroleum products (e.g., gasoline, diesel fuel, jet fuel)
- Liquefied petroleum gas (LPG)
- Natural gas liquids (NGLs)
API 650 is widely regarded as the global standard for the oil and gas industry, utilizing Imperial units (inches and feet) and focusing heavily on American material grades. EN 14015, conversely, is metric and is harmonized with European material standards (Eurocodes). One significant divergence is the treatment of hydraulic testing. EN 14015 allows for specific alternative testing methods, such as vacuum box testing for tank bottoms, which can offer time savings during construction. Furthermore, EN 14015 is often viewed as providing more explicit guidance on seismic design for specific European ground conditions compared to the broader approaches found in API codes. For companies operating within the European Union or dealing with European engineering firms, compliance with EN 14015 is not just a choice but often a regulatory requirement. EN 14015 is the primary European standard for
Perhaps the most critical aspect of EN 14015 is its integration with broader safety legislation, specifically the EU’s Seveso directives regarding the control of major accident hazards. A storage tank is rarely an isolated entity; it is a node in a high-stakes network of chemical processing. A failure in a tank designed under subpar standards can lead to catastrophic environmental damage and loss of life. Not for refrigerated liquids (use EN 14620)
“EN 14015 is a competent, Eurocode-based tank standard well suited for above-ground, ambient temperature liquid storage in Europe. It is simpler than API 650 for small-to-mid sized tanks but lacks detailed provisions for seismic, floating roofs, and moderate pressure. For a purely European project without high seismic risk or internal pressure, it’s a solid, enforceable specification.”
What is EN 14015?
EN 14015 is a European standard whose full title is: "Specification for the design and manufacture of site built, vertical, cylindrical, flat-bottomed, above ground, welded, steel tanks for the storage of liquids at ambient temperature and above."
- Engineering university libraries (many have site-wide licenses for EN standards via ProQuest or IHS Markit).
- National standardization bodies sometimes offer "read-only" online access for a reduced fee (though download is still paid).