UIG is the top supplier of welded steel tanks of all capacities, from small applications of ten thousand gallons to the largest industrial tanks measured in millions of barrels.Welded Steel Tank

We offer individual tanks as well as complete packages that include all appropriate peripheral equipment and systems. 

Naturally, the metallurgy of your tank and its peripheral equipment will be properly selected for its expected contents.


Two Types of Welded Steel Tanks


There are two types of welded steel tanks - shop fabricated and field installed (or "shop-welded" and "field-welded"). Both are commonly installed above ground and are used to store many different products, either as interim storage before being transferred elsewhere or for long term storage.

Shop fabricated steel tanks are limited to a size of about 16 feet (~5 meters) in diameter.  The tanks are constructed and completed in the fabrication shop for later shipment to the job site.  Prior to final finishing in the shop, the tank is sand-blasted, painted and prepared for shipment.  When complete, the tank is loaded onto a truck for transfer to your site for installation.  Naturally, such shop-fabricated welded tanks are restricted in their dimensions to allow them to be transported on public roads.

The other type - field installed welded steel tanks - are typically larger than can be shipped to the site in one piece, thus requiring field welding to complete the tank installation.  These larger tanks are constructed in sections at the shop.  The sections are then shipped to the site and prepared there.  The field installation process involves welding the sections together, as well as the addition of all connections and peripherals, plus final painting.

UIG will manage the various environmental concerns and regulations associated with these operations.  Our experienced crews will complete the tank and system installation and thoroughly test them before being handed over to your staff.

Peripheral Equipment


Shop fabricated or field welded tanks may only require a simple connection to the piping systems to be ready for use.  Or, in contrast, they may be part of complex systems requiring installation of pumps, valves and other equipment prior to full operation.

They may be joined together by overhead walkways and require external stairways and/or external and internal ladders, perimeter guard rails, shell and deck man-ways, vents and numerous inlets, outlets and monitoring points.

In either case, UIG brings expert design and construction skills to your project.  Our design team will determine the size and capacities of your welded tank and for all accessories - piping, pumps, valves and more - to meet your needs. Then UIG will provide our experienced crews to install your complete system.


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