Underground
Fuel Tanks

U-Fuel provides several options for customers requiring underground fuel tanks to meet or exceed internationally accepted standards.

Permatank Underground
Steel-Fiberglass Fuel Tanks

The Permatank underground fuel tank is a licensed technology by the Steel Tank Institute consisting of a double-wall jacketed underground fuel storage tank. It features an inner steel fuel tank which provides structural strength, coupled with an exterior wall of fiberglass reinforced plastic (FRP) which prevents corrosion. A unique standoff mesh and mylar layer is also incorporated to create a uniform interstitial space ensuring rapid and accurate leak detection. The Permatank underground fuel tank meets UL58, UL1746, and ULC-S603.1 requirements. Internationally, the Permatank is the most widely accepted underground fuel storage tank.

STI-P3 Underground
Steel-Steel Fuel Tanks

Another fuel tank technology licensed by Steel Tank Institute is the STI-P3 underground fuel storage tank. This fuel tank can come as either single or double wall and incorporates a pre-engineered monitoring of corrosion protection. The double wall design features two steel walls and an interstitial leak detection monitoring pipe. The STI-P3 underground fuel tank complies with UL58, ULC-S603, UL1746, and ULC-S603.1 requirements.

PSI Oil Water Separators

To protect rivers, lakes, oceans, groundwater, and wastewater treatment systems from harmful pollutants, PS International oil-water separators are designed to exceed US Federal, State, and Local wastewater discharge requirements. A wide range of separator sizes is offered and configurations include cylindrical and rectangular designs for above and below grade installations. Flow rates range from 1 to 5,000 GPM (4 to 19,000 LPM) with larger flow rates available by installing multiple units in parallel. PSI oil-water separators are designed in accordance with UL58, UL142 and UL1746 construction requirements.