An API 650 storage tank is an aboveground welded steel storage tank designed and constructed in accordance with the American Petroleum Institute (API) Standard 650. These tanks are the industry standard for storing petroleum products, chemicals, renewable fuels, water, asphalt, and other liquid products at atmospheric pressure. API 650 tanks are widely used because they provide a safe, durable, and code compliant solution for long term bulk liquid storage.

API 650 storage tanks are used across nearly every industrial sector that requires aboveground liquid storage. Common industries include oil and gas, petroleum terminals, renewable fuels, chemical processing, food and beverage manufacturing, agriculture, grain processing, mining, asphalt production, water treatment, power generation, and general manufacturing. Platinum Arch Manufacturing & Construction has experience supporting industrial customers with custom storage tank solutions designed for their specific operations.

API 650 storage tanks can be built in a wide range of diameters and capacities depending on the application's requirements. Many tanks hold tens of thousands of gallons, while large field erected tanks can exceed several million gallons of storage capacity. Tank size is determined by the owner's storage needs, site conditions, product requirements, and engineering specifications. Platinum Arch constructs API 650 tanks to meet each customer's unique operational goals.

API 650 applies to atmospheric and low pressure welded steel storage tanks used for liquids such as crude oil, diesel, gasoline, chemicals, water, and renewable fuels. API 620 is intended for tanks that operate at higher internal pressures or store refrigerated or cryogenic products such as liquefied gases. Choosing between API 650 and API 620 depends on the product being stored, operating pressure, temperature, and applicable engineering requirements.

Construction timelines vary depending on tank diameter, shell height, foundation readiness, weather conditions, material availability, and project complexity. Smaller API 650 storage tanks may be completed within several weeks, while larger field erected tanks often require several months from foundation construction through final inspection and commissioning. Platinum Arch works closely with customers to develop realistic schedules while maintaining high standards for safety, quality, and workmanship.

Yes. Existing API 650 storage tanks can often be repaired, expanded, or modified to meet changing operational requirements. Platinum Arch performs shell extensions, floor replacements, roof replacements, nozzle additions, manway installations, piping modifications, structural upgrades, and other tank alterations. Every modification is evaluated to ensure compliance with applicable industry standards and project specifications.

Every API 650 storage tank requires a properly engineered foundation based on the tank size, product being stored, anticipated loads, and site soil conditions. Common foundation systems include compacted ringwall foundations, reinforced concrete ringwalls, and engineered foundations designed to minimize settlement and maximize long term performance. Proper foundation design is one of the most important factors in ensuring a safe and reliable storage tank installation.

Yes. Platinum Arch Manufacturing & Construction works with experienced engineering partners to provide complete design build and design assist solutions for API 650 storage tanks and related industrial construction projects. Our team can support project planning, engineering coordination, fabrication, field construction, process piping, structural steel, equipment installation, and complete turnkey project execution, giving customers a single, dependable partner from concept through completion.