Chicago Boiler Company designs and fabricates aboveground steel storage tanks built to American Petroleum Institute (API) standards, ensuring safety, durability, and compliance for industrial storage applications. Our shop-fabricated tanks are manufactured to API 650, API 620, and API 12F standards, covering a full range of operating pressures and capacities.
Applications
API tanks are commonly used for the storage of:
- Oil
- Gasoline
- Chemicals
- Other industrial liquids
API Standards We Support
API 650 Tanks
- Designed for operating pressures of 0 – 2.5 PSIG
- API shop-fabricated tanks built to shop requirements
- Ideal for large-capacity, low-pressure storage applications
API 620 Tanks
- Covers design and construction of steel tanks operating at 2.5 – 14.9 PSIG
- Provides a corrosion allowance for long-term durability
- Note: Operating pressures at or above 15 PSIG require an ASME pressure vessel
API 12F Tanks
- Specification for shop-fabricated welded tanks
- Includes predetermined tank dimensions and storage capacities
Why Chicago Boiler Company?
With over 135 years of tank fabrication expertise, Chicago Boiler delivers API-certified tanks that meet strict quality standards while supporting safe, reliable storage across industries. From fuel handling to chemical storage, we provide tanks engineered for compliance, longevity, and performance.
