Underground Double-Wall Steel/Steel Tanks

Quality is the most important aspect involved in the manufacturing process of double-walled steel tanks with cathodic protections. There is nothing like a steel tank in terms of resistance, duration and compatibility with all fuels. With our tanks, these factors are twice as secure because the tank is double-wall forming the most resistant tank in every way.

All joints of both tanks are flanged (including covers), adding rigidity to the body and creating a perfect assembly.

One-hundred percent of the welds in both tanks are applied with semi-computerized submerged arc machines (SAW). This ensures total generation and ensures a perfect finish.

A vacuum is established in the interstitial space, which will be monitored from the day its manufacture ends, until the day it is delivered to your service station.

To avoid corrosion of your secondary tank, the tanks are subjected to an external process of sand blast to commercial metal, removing any impurities from the steel and leaving an optimal anchoring surface to apply an approved import polyurethane coating (16 mil) by UL and by the United States Steel Tank Institute; additionally, sacrificial zinc anodes are installed, which will last 30 years supplying electrical current to the entire exterior surface of your tank, completely eliminating external corrosion.

Each tank has an annual airtightness test system that consists of a vacuum gauge verifying the vacuum applied in its interstitial space so you can verify the tightness of both tanks when they are delivered to your service station and throughout the life of the tank. A written warranty certificate (30 years) is issued for each tank.

Please feel free to contact with any questions and quotes!