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STI Tank Technologies

AST: Aboveground Storage Tanks

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FIREGUARD®

Protected, thermally insulated secondary containment tank

FLAMESHIELD®

Fire-tested, double-wall tank

F921®

Double-wall steel tank

GENERATOR BASE TANKS®

Safe and sturdy support for your backup or emergency power

F911®

Open-top diked system

UST: Underground Storage Tanks

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sti-P3®

Cathodically protected steel tank

ACT-100®

Steel/FRP composite tank

ACT-100-U®

Steel tank with an external urethane coating

PERMATANK®

Double-wall jacketed tank with inner steel tank and an exterior FRP tank

AquaSweep™

Gravity Oil Water Separators

STI Technologies are available from an extensive group of Steel Tank Institute fabricators. Find an STI/SPFA fabricator member for your next shop fabricated tank project.

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STI Shop Fab Tank Section

Specifications, technical documents, and inspection forms for STI Technologies. STI Shop Fabrication Section members only.

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Quality Control Program

Quality control is a crucial aspect of all manufacturing processes. Therefore, member fabricators of the Steel Tank Institute’s licensed tank technologies are subject to periodic, unannounced inspections by a team of STI/SPFA Quality Control Inspectors.

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Aboveground Storage Tank FAQ

Get answers to commonly asked questions about aboveground storage tanks including differences between tanks and fire code information.

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Education and Training

Codes and Regulations

Find information on federal and state fuel storage environmental regulations, chemical storage tank regulations, fire codes, and more.

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Alternative Fuels

View compatibility studies for steel and alternative fuels/emerging fuels.

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About Steel Storage Tanks

Additional Resources

“STI/SPFA provides excellent safety resources and information, as well as a platform for members to discuss EHS challenges and solutions.”

CJ Hineman
Fisher Tank Company

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