At LITCO, we specialize in the design, fabrication, erection, and maintenance of welded steel storage tanks in full compliance with API 650, the globally recognized standard issued by the American Petroleum Institute (API).
With 30+ years of expertise in Saudi Arabia’s industrial sector, and as leading API 650 tank manufacturers, we provide end-to-end tank solutions for crude oil, refined products, water, and petrochemical storage. Our API 650 storage tank units are engineered for long service life, safety, and environmental compliance, meeting the stringent requirements of Saudi Aramco, SABIC, and international EPC contractors.
The API storage tank standard applies to welded carbon steel, austenitic stainless steel, and duplex tanks designed for storing ambient-temperature and low-pressure liquids. These tanks are used for a range of applications, including petroleum products, water, chemicals, and firewater storage.
To ensure structural integrity, the tanks are designed with features such as hydrostatic testing, corrosion allowances, and considerations for seismic and wind loads. Compliance with these standards guarantees safe storage, environmental protection, and long-term reliability.
At LITCO, we manufacture storage tanks API that adhere to the highest international benchmarks using quality materials and durable construction methods.
– Plates: ASTM A36, A283, A285, A516 Gr. 60/65/70 depending on design pressure and service.
– Nozzles & Fittings: ASTM A105 / A182, stainless steel (SS304/SS316L) when required.
– Welds: Qualified per ASME IX and AWS D1.1.
– Roof Types: Cone roof, dome roof, floating roof (per API 650 Annex C, D, G).
– Foundations: Ring wall or slab foundations designed per API 650 Appendix B and Saudi Building Code.
– Capacity: From 500 m³ to 100,000+ m³ (standard crude oil and water tanks).
– API 620 tanks: For low-temperature (-325°F) and low-pressure applications, used in LNG, LPG, ammonia, and cryogenic storage applications.
– 653 API: Inspection, repair, alteration, and reconstruction of in-service API 650 storage tanks, including:
– Floor replacement & bottom repairs
– Roof structure replacement
– Shell thickness measurement & evaluation
– Settlement & foundation inspections
– Re-rating of existing tanks to extend service life
Each tank, be it API 650 or API 620 tanks, undergoes a rigorous QA/QC process to ensure it meets all safety standards and quality requirements. This thorough inspection guarantees compliance with industry regulations and ensures durability and reliability in every unit.
– Hydrostatic Testing per API 650.
– NDT Inspections: Ultrasonic (UT), Radiographic (RT), Magnetic Particle (MPI), and Dye Penetrant (PT).
– Dimensional Checks with total station surveys for roundness, plumbness, and alignment.
– Material Traceability: Mill Test Certificates (MTCs) for all steel plates.
– Third-Party Inspection: Bureau Veritas, SGS, TUV, or client-nominated agencies.
– ISO 9001:2015 certified quality management system.
Bulk liquid storage in the oil, gas, and petrochemical sectors demands vessels engineered to a recognized international standard. LITCO designs, fabricates, and installs API tanks for clients across Saudi Arabia, delivering welded steel storage solutions that comply with the American Petroleum Institute’s codes for atmospheric and low-pressure storage. With decades of fabrication experience serving the Kingdom’s industrial sector, our engineering team produces tanks that meet the structural, safety, and environmental requirements demanded by major operators, EPC contractors, and regulatory bodies alike.
From crude oil and refined product storage to water and chemical applications, LITCO’s API tank capability covers the full lifecycle of a storage asset, from initial design through fabrication, erection, and long-term inspection support.
Our API tank portfolio addresses the distinct design and service requirements set out across the API 650, 620, and 653 standards.
The API 650 standard governs welded carbon steel, stainless steel, and duplex tanks for ambient-temperature, low-pressure liquid storage. LITCO fabricates API 650 tank units for crude oil, refined petroleum products, water, and chemical storage, engineered with cone roof, dome roof, or floating roof configurations depending on the stored product and site requirements. Each tank is designed with due allowance for corrosion, seismic loading, and wind loading in line with the code.
For applications involving lower service temperatures or elevated internal pressures beyond the scope of atmospheric storage, LITCO fabricates tanks to the API 620 standard, suited to LPG, ammonia, and other low-temperature or cryogenic storage requirements where API 650 design limits do not apply.
Existing storage assets require periodic inspection and, over time, repair or reconstruction to remain fit for service. Our API 653 capability covers floor and bottom repairs, roof structure replacement, shell thickness evaluation, foundation and settlement assessment, and re-rating of in-service tanks to extend their operational life.
Where a project’s storage volume, product characteristics, or site layout call for a solution outside standard configurations, our engineering team develops custom API tank designs, working within the applicable code framework to meet the client’s specific operational and regulatory requirements.
Our commitment to safety and environmental compliance is paramount in every stage of our operations. We adhere to stringent industry standards and regulations to ensure the well-being of our workforce and the protection of the environment.
– Secondary Containment: Bund walls and dikes per Saudi regulations.
– Floating Roof Seals: To minimize VOC emissions.
– Fire Protection: Foam chambers, sprinklers, and NFPA-compliant systems.
– Access & Safety: OSHA-compliant stairs, handrails, platforms, and grounding systems.
LITCO’s API tanks fabrication capability supports a broad range of industrial sectors across Saudi Arabia, including:
• Oil and gas production and refining
• Petrochemical processing and feedstock storage
• Water and utilities, including firewater and desalinated water storage
• Power generation, for fuel oil and demineralized water storage
• Food and beverage, for compliant stainless steel storage applications
Each sector brings distinct product compatibility, capacity, and regulatory considerations, and our engineering team designs every tank around the specific service conditions it will operate under.
LITCO applies a controlled, code-compliant process to every API tank project, from initial engineering through final testing and handover.
Engineering & Design
Every project begins with design calculations and detailed drawings developed in accordance with the applicable API standard, establishing plate thickness, roof configuration, foundation type, and load considerations before fabrication begins.
Material Procurement
Tank plates are sourced in grades such as ASTM A36, A283, A285, and A516, selected based on design pressure and service conditions, with nozzles and fittings procured to match the specified grades. Stainless steel is used where the stored product requires it. All materials are supplied with full mill test certification.
Plate Rolling & Welding
Plates are cut, rolled, and welded using CNC-controlled equipment and certified welding procedures qualified to ASME IX and AWS D1.1, producing shell courses, roofs, and floor plates that meet the dimensional and structural requirements of the governing code.
Inspection & Testing
Completed tanks undergo hydrostatic testing along with non-destructive examination, including ultrasonic, radiographic, magnetic particle, and dye penetrant testing, to verify weld integrity. Dimensional surveys confirm roundness, plumbness, and alignment prior to client handover.
Surface Protection
Tanks receive surface preparation and protective coating systems appropriate to the stored product and site environment, along with secondary containment features such as bund walls where required by Saudi regulations and the applicable safety code.
LITCO brings more than three decades of industrial fabrication experience to every API tank project undertaken in Saudi Arabia, supported by an ISO 9001:2015-certified quality management system and welding procedures qualified to international standards.
Our engineering team is equally comfortable working across API 650 new-build projects and API 653 inspection and repair scopes, giving clients continuity of expertise across the full life of a storage asset. Beyond API-compliant tanks, our capabilities include steel fabrication and erection services. For clients with additional bulk storage requirements outside the API scope, we also provide steel storage tanks for water, chemical, and process applications. This breadth allows LITCO to support multi-tank and multi-discipline projects under a single accountable engineering and fabrication team, backed by material traceability and third-party inspection options through Bureau Veritas, SGS, or client-nominated agencies.
Headquartered in Riyadh, LITCO delivers API tank fabrication and erection services throughout the Kingdom, including Riyadh, Jeddah, Dammam, Jubail, and Yanbu. Our site erection teams are equipped to construct tanks using jacking method or crane-lifted assembly, supporting both greenfield industrial developments and brownfield sites requiring API 653 inspection or repair work across the Kingdom’s major industrial zones.
From design consultation to finishing touches, we offer unified services for all types of storage tank API projects.
1. Engineering & Design – API 650 / 620 compliant drawings and calculations.
2. Fabrication – CNC plate cutting, rolling, welding, blasting & coating.
3. Erection – On-site construction with jacking method or crane lifting.
4. Testing & Commissioning – Hydrotest, NDT, and client inspections.
5. Maintenance & Repair – API 653-certified inspection and repair services.
What is an API 650 tank?
An API 650 tank is a welded steel storage tank designed and constructed in accordance with the American Petroleum Institute’s API 650 standard, used for ambient-temperature, low-pressure storage of products such as crude oil, refined fuels, water, and chemicals.
What is the difference between API 650, API 620 and API 653?
API 650 covers the design and construction of new atmospheric storage tanks, API 620 addresses tanks for lower-temperature or higher-pressure service beyond API 650 limits, and API 653 governs the inspection, repair, alteration, and re-rating of tanks already in service.
Do you manufacture custom API storage tanks?
Yes. LITCO’s engineering team designs custom API tanks around specific capacity, product, and site requirements, working within the applicable API code to deliver a solution matched to the project’s operational needs.
What industries use API tanks?
API tanks are used extensively across oil and gas, petrochemical processing, water and utilities, power generation, and food and beverage industries, wherever bulk liquid storage must meet a recognized engineering and safety standard.
Do you provide API tank installation support?
Yes. LITCO provides complete erection and commissioning services for API tanks, including on-site construction, hydrostatic testing, and client inspection support, as well as fabrication.
Which areas of Saudi Arabia do you serve?
LITCO serves clients throughout the Kingdom, including Riyadh, Jeddah, Dammam, Jubail, and Yanbu, supporting projects across major industrial and petrochemical zones as well as urban commercial developments.
Looking for API 650-certified tank manufacturers in Saudi Arabia?
📞 Contact LITCO’s engineering team today for datasheets, compliance documents, or a tailored proposal.
Saudi Arabia - Riyadh
© Copyright 2026, LITCO Group
© Copyright 2026, LITCO Group
