October 15, 2026 · Indumor
A while back, a farm client brought us a mining company spec asking for a "30,000-liter diesel tank, British standard UL 142". First correction, gently: UL is not British — it is Underwriters Laboratories, the American lab that has spent over a century testing that things do not catch fire. Second: the spec was well written, because UL 142 is exactly the right standard for that tank.
The essentials first: UL 142 is the standard for SHOP-FABRICATED aboveground steel tanks for flammable and combustible liquids — diesel, gasoline, lubricants. Horizontal on saddles or vertical, single or double wall. Where API 650 governs large verticals calculated course by course, UL 142 governs the tank that leaves the shop finished on a truck: it sets minimum thickness by capacity and diameter, weld details, emergency vents (so a tank in a fire relieves pressure instead of bursting), compartments, and the leak test of every unit.
The star of the family is the double wall: a tank inside a tank, with a monitorable interstice. If the inner wall ever leaks, fuel stays contained in the outer one and a sensor tells you — 110% containment built in, no civil-works dike needed. For distributors and on-site fueling with little room, it is usually the smartest buy.
Our fuel storage tank line runs from 400 to 16,000 gallons following these guidelines, every unit leak-tested and documented — and we ship export-ready.
If you are setting up fueling before the busy season, order the tank with the standard now — buyers in a hurry mid-season end up accepting any round piece of plate.
Quote it now with standard and testing: later there is no time.
© Indumor 2010–2026 — Industrial steel fabrication, Córdoba, Argentina
