Chicago Boiler designs and fabricates double-wall aboveground steel storage tanks that provide safe, reliable storage for flammable and combustible liquids. With built-in secondary containment, these tanks deliver both safety and environmental compliance, making them the preferred choice for industries handling fuels, chemicals, and other hazardous liquids.
Compliance & Standards
Our double-wall tanks can be built to meet a variety of industry codes, including:
- UL-142
- ASME
- STI/SPFA
We also offer specific STI/SPFA technologies, including:
- F921® Double-Wall Steel Tank
- F911® Open-Top Diked System
- sti-P3® Cathodically Protected Steel Tank
Material Options
- Carbon Steel – Economical and durable
- Stainless Steel – Corrosion-resistant and low maintenance
Design Types
Double-wall tanks can be engineered in two configurations:
- Type I – Intimate shell-to-shell contact
- Type II – Spacing between primary and secondary containment for added protection
Why Chicago Boiler Company?
With over 135 years of fabrication experience, Chicago Boiler provides double-wall tanks that combine safety, compliance, and long-term reliability. Whether built to UL, ASME, or STI standards, our tanks ensure peace of mind while meeting strict regulatory requirements.
