Double-wall steel tank
F921® aboveground storage tanks are manufactured with a double‐wall steel design. Standard features include built‐in, testable, interstitial monitoring capability and impermeable secondary containment. The F921® delivers uncompromising performance, reliability, service and economy.
F921® Features
- Meets UL 142, Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids
- Double‐wall design offers integral, impermeable secondary containment to meet EPA SPCC requirements
- Primary and secondary tank can be tightness tested on site with standard testing procedures, or manufacturer may ship with vacuum in the interstice to prove integrity of both walls during installation
- Interstitial space can be monitored for leak detection
- Primary storage tank and secondary containment compatible with a wide range of fuels and chemicals
- Support designs available for all seismic requirements
- Choose from many integral support types, including saddles and skids
- Vertical tanks supported on legs, and skirted available, with listing label
- Capacities range up to 75,000 gallons
F921® Benefits
- Steel construction allows for recycling
- Low cost compartments and customization
- Built to nationally‐recognized STI standards with strict third‐party quality control inspection program
F921® is available from an extensive group of Steel Tank Institute fabricators who participate in the STI Quality Control Program. Under the program, independent quality control inspectors make unannounced visits to STI members, ensuring fabrication to the highest possible standards.
F921® Publications
STI Tank Technologies
Aboveground Storage Tanks (AST)
Underground Storage Tanks (UST)
Featured Affiliate
Phoenix Forging Company, a member of the Phoenix Forge Group, is a proud domestic manufacturer of steel tank and cylinder fittings based in Catasauqua, PA. Phoenix Forge was founded in 1882.
www.phoenixforge.com“STI/SPFA has allowed us to network with other fabricators to enhance our production capabilities.”
Coby Hayes
J . L. Houston Co
