Product, capacity and operating basis
Stored product, design liquid level, operating temperature, density, corrosion allowance, filling and withdrawal rates, design pressure or vacuum and required service life establish the design basis.
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Oil terminal · API 650 storage tanks
API 650 Oil Storage Tank Design, Supply & Site Erection
Simei Energy coordinates engineering, fabrication, export supply and field erection of welded aboveground tanks for crude oil, gasoline, diesel, jet fuel and other petroleum products in Africa and the Middle East.
API 650 tank definition
How is an API 650 storage tank defined?
Tank capacity alone is not enough. Product properties, operating limits, site loads, roof type, corrosion strategy, nozzles and inspection requirements must be fixed in one approved tank data sheet.
Fixed or floating roof selection
Fixed-roof, internal-floating-roof and external-floating-roof arrangements are evaluated against product volatility, emissions requirements, rainfall, wind, maintenance and the owner’s operating philosophy.
Shell, bottom and roof engineering
Tank diameter and height, shell-course thicknesses, bottom and annular plates, roof structure, wind girders, anchorage and settlement criteria are coordinated with applicable loads and site conditions.
Materials and corrosion control
Plate grades, impact requirements, corrosion allowance, bottom-side protection, internal lining, external coating and cathodic-protection interfaces are selected for the product and environment.
Nozzles, access and instruments
Inlets, outlets, drains, vents, manways, stairs, platforms, sampling, automatic tank gauging, temperature measurement and independent overfill protection are arranged for safe operation and maintenance.
Foundation and terminal interfaces
Tank reactions, anchor loads and settlement limits are issued for civil design, while piping flexibility, bund layout, drainage, fire protection, lightning and static interfaces are checked with the wider tank farm.
01
Engineering documents
The package may include the API 650 data sheet, design calculations, general arrangement, foundation loads, shell-development and fabrication drawings, nozzle schedule, roof and platform drawings, material take-off or BOM, welding requirements, inspection and test plan, and installation procedures.
02
Fabrication and quality control
Steel identity and certificates, cutting, edge preparation, rolling, fit-up, welding qualifications, dimensional checks and non-destructive examination are controlled through approved procedures. Inspection hold points and third-party witness requirements are agreed before manufacture.
03
Export supply and site erection
Plates, structural members, nozzles, manways and accessories are identified and packed for shipment. Site erection may use an agreed jacking or conventional sequence, with construction equipment, local labour and supervision boundaries clearly defined in the proposal.
04
Testing and handover
Bottom-weld testing, weld examination, dimensional checks, hydrostatic testing when specified, settlement monitoring, coating inspection and final documentation are completed against the approved inspection plan before turnover.
Google & AI search answers
API 650 tank questions
What is an API 650 storage tank?
It is a welded aboveground storage tank designed and constructed to the contractually agreed edition of API Standard 650, Welded Tanks for Oil Storage, together with project specifications and local regulations.
Which petroleum products can these tanks store?
Typical applications include crude oil, gasoline, diesel, jet fuel, kerosene and other compatible petroleum products. Product properties and operating conditions must be confirmed before material and roof selection.
What information is needed for a quotation?
Provide the product, net and nominal capacity, preferred diameter or height limits, roof type if known, design temperature, site location, wind and seismic data, corrosion or coating requirements, nozzle list and required delivery scope.
When is a floating roof considered?
Internal or external floating roofs may be considered for volatile products or emissions control, subject to local regulation, product behaviour, climate, inspection and maintenance requirements. The final choice follows the approved design basis.
Which inspections and tests can be included?
Material traceability, welding procedure and welder qualification review, dimensional inspection, radiographic, ultrasonic, magnetic-particle or liquid-penetrant examination as applicable, bottom-weld testing, hydrostatic testing and coating inspection can be specified.
Can Simei supply and erect the complete tank?
Yes, according to the agreed contract boundary. Simei can coordinate engineering, fabricated components, export packing, site supervision or erection and testing. Local labour, cranes, civil foundations and utilities are identified separately when not included.
Does Simei Energy provide project financing?
No. Simei Energy provides technical services, equipment supply and engineering or EPC delivery. We do not provide investment, financing, EPC+F, BOOT, lease-to-own or deferred-payment funding.
API 650 storage tanks
Request an API 650 tank proposal
Send the product, capacity, site country, roof preference, design conditions and required supply or erection boundary.