STI-P3®

sti-P3® pre-engineered tanks provide a cost effective solution for corrosion protection. "p3" stands for the three components of the tank protective system. The three components of this system are: electrical isolation, protective coating, and cathodic protection. Electrical isolation is achieved by installing dielectric bushings or flange isolators, which are inserted into every tank opening. The protective coating is chemical-resistant, and protects the carbon steel from corrosive soil conditions. This coating also reduces the amount of protective current needed for cathodic protection. The last component, cathodic protection, is achieved using weld on sacrificial anodes attached to the tank. These anodes meet NACE standards for corrosion protection.

This cathodically-protected steel tank set new standards for corrosion protection way back in 1969. Since then, its design has been proven through more than 250,000 installations.
 

Key Features:

• The only UST design which allows on-going monitoring of corrosion protection.
• 30-Year warranty against internal and external corrosion (call for details).
• Tank owner/operator can self-test the cathodic protection (CP) system within minutes.
• Single or double-wall design. (Per the US EPA, double-wall sti-P3's do not require on-going CP monitoring. Some states may differ.)
• Double-wall design includes interstitial leak detection monitoring pipe.
• All models are alternative fuels compatible.
• UL 58 or UL 1746-Part I labeled.
• Built to nationally-recognized STI standards with strict third-party quality control inspection program.
• Capacities range up to 50,000 gallons.
• Customized compartments can be provided for cost-effective multi-product storage.