The UL 142 Standard for Steel Aboveground Tanks for Flammable and Combustible Liquids is one of the most common construction standards for the tank industry. One type of tank covered under this standard is the double wall storage tank. Underwriters Laboratories (UL) is an accredited developer of standards for product safety and performance. UL standards are widely recognized in the United States and Canada across many industries. UL Certified or listed means that UL has tested product samples and determined that it meets UL’s nationally recognized Standards for Safety. A UL product listing or certification demonstrates the manufacturer’s experience in the industry, the commitment it makes to quality and steps it has taken to ensure its products can be safely used. There is no legal requirement that all tanks must be UL certified or listed. However, the regulating authority or fire marshal may set such requirements in their jurisdiction.
Double wall storage tanks are usually preferred over single wall tanks, not only due to requirements, but also due to costs. The drawbacks of single wall tanks VS double wall storage tanks are the costs involved with owning and installing a single wall tank. Relocating single wall storage tanks within a concrete dike can be an issue, as concrete dikes are permanent structures. Double wall storage tanks are a complete unit, so no separate dike is required and relocation is easy.
We also offer single wall storage tanks to customers that have a need for them. They also are commonly used for petroleum products and chemicals, where open top containment boxes or concrete dike structures provide a secondary containment.
For Bottom Anti-Roll Support And Ground Clearance, We Offer A Variety Of Supports For Our Double Wall Storage Tanks. These Include Saddles, Leg Supports, Light Duty Skids, Box Skids, Heavy Duty Skids, Pipe Skids And Super Heavy Duty WF Beam Skids.