API 650 tanks are vertical, welded stainless steel storage tanks designed for above-ground storage of liquids under atmospheric pressure. Built according to the American Petroleum Institute (API) standard 650, these tanks are engineered for storing large volumes of oil, petrochemicals, and other liquids where strength, durability, and safety are essential. The API 650 standard outlines design, material, welding, and inspection requirements to ensure tanks meet rigorous operational and environmental conditions.
At Gpi Tanks XL, we manufacture API 650 tanks exclusively from high-quality stainless steel to meet the highest standards of corrosion resistance and long-term reliability. By using fully recyclable stainless steel grades such as 304, 316, Duplex, and Super Duplex, we also support your sustainability goals while minimizing maintenance and lifecycle costs.
Questions about our API 650 tanks?
Custom API 650 tank design: fixed and floating roofs,
heating and insulation
Whether you require tanks for crude oil, refined products, chemicals, or water, our API 650 tanks are fully customizable to your specific project. We offer flexible options including fixed or floating roofs, insulation, heating, and tailored access platforms to meet your operational demands.
Thanks to our experienced engineering team and modular production approach, we can fabricate tanks in our facility or directly on-site, ensuring efficient installation and seamless integration into your operations.
API 650 storage tanks for petrochemicals, terminals,
bioenergy and water
API 650 stainless steel tanks are widely utilized across several key industries, including petrochemical, oleochemical, tank terminals, bioenergy, water treatment and pulp and paper. These tanks are specifically designed to provide secure, durable, and efficient storage solutions for a broad range of liquids such as volatile substances, feedstocks, fuels, chemicals, and other process liquids. Their construction to meet the rigorous API 650 standard ensures reliable performance under atmospheric pressure and varying environmental conditions. This makes them well suited for large-volume storage needs in demanding industrial environments. It is important to note that for hygienic or food-grade storage, specialized tank standards should be applied to meet strict sanitation and regulatory requirements, as API 650 tanks are primarily intended for industrial liquids.
Benefits of stainless steel API 650 tanks
Designed for strength, safety, and lasting performance, our API 650 tanks combine high-quality stainless steel construction with fully customizable options. this makes them an excellent and dependable choice for above-ground atmospheric storage needs across multiple industries. key benefits include:
- Compliant with industry standards: Engineered according to the rigorous API 650 requirements for above-ground atmospheric storage tanks.
- Durable and easy to maintain: Crafted from high-grade stainless steel, ensuring a long lifespan without the need for protective coatings or frequent maintenance.
- Customized for your operations: Offered in a variety of diameters and heights to accommodate large storage volumes tailored to your site’s specifications.
- Prioritizing safety: Built to guarantee structural strength and secure performance throughout the tank’s service life.
- Broad usability: Suitable for storing petrochemical liquids, chemicals, and non-hygienic water, designed to meet the demands of various industrial sectors.
API 650 tank construction: technical features
Our API 650 tanks are engineered to meet stringent technical standards, ensuring outstanding strength, durability, and operational reliability:
- Material selection: Available in premium stainless steel grades tailored to your process and corrosion resistance requirements.
- Customized wall thickness and reinforcement: Designed based on the characteristics of the stored liquids, environmental factors such as wind and seismic activity, and operational stresses.
- Versatile roof options: Choose from fixed, cone, or floating roofs to optimize tank performance, enhance safety, and minimize product evaporation losses.
- Robust foundation engineering: Foundations are engineered according to soil conditions and load requirements to guarantee structural stability and longevity.
- Easy inspection and maintenance: Equipped with strategically placed manways, ladders, and access platforms for efficient tank monitoring and upkeep.
- Optional temperature control systems: Includes insulation and heating solutions to maintain ideal product temperatures and improve energy efficiency.
- Advanced safety features: Specialized options like floating roofs designed to reduce vapor emissions and ensure safe storage of volatile liquids.
Your API 650 tank manufacturer, from engineering to
installation
At Gpi Tanks XL, we deliver high-quality API 650 stainless steel storage tanks engineered for safe, durable, and efficient above-ground liquid storage. Designed to meet the needs of industries such as petrochemical, oleochemical, tank terminals, bioenergy, water treatment and pulp and paper, our tanks offer full compliance with the API 650 standard and are built with corrosion-resistant stainless steel. With fully customizable dimensions and features, we tailor each tank to your specific process, site, and volume requirements. From engineering and production to on-site installation, our in-house team ensures a seamless process and long-term performance for your storage operations.
FAQ
What is an API 650 tank?
An API 650 tank is a vertical, welded storage tank for the above-ground storage of liquids under atmospheric pressure, built to the American Petroleum Institute standard API 650. The standard covers design, materials, welding and inspection. Gpi Tanks XL builds API 650 tanks exclusively in stainless steel
What is the difference between API 650 and EN 14015?
Both standards apply to vertical, above-ground welded storage tanks. API 650 is the American standard used worldwide, especially in oil and petrochemicals; EN 14015 is the European standard. The applicable standard is usually set by the client specification and the project location.
Which products can be stored in an API 650 tank?
API 650 tanks are suitable for crude oil, refined products, chemicals, feedstocks and non-hygienic water. For hygienic or food-grade storage, a dedicated hygienic tank design is recommended.
