Urea DEF Storage

Containment Solutions (CSI) was the first fiberglass tank manufacturer in North America to complete independent third party testing for Urea DEF compatibility. CSI underground fiberglass chemical tanks meet the quality and storage requirements in the ISO standard and the PEI Recommended Practice for storing Urea DEF.

Understanding Urea DEF

Urea DEF (Diesel Exhaust Fluid) is used to control diesel engine discharges in order to meet EPA emission standards. Most new diesel vehicles use SCR (Selective Catalytic Reduction) systems to inject Urea DEF directly into the exhaust stream to chemically neutralize about 90% of harmful NOx emissions. Urea DEF, or AUS 32, is a mixture of 32.5% urea solution in demineralized/deionized or distilled water. The purity of the Urea DEF is critical for the SCR process to work. This process also improves fuel efficiency 3%-6%.

As the number of SCR systems on the road increase to meet EPA standards, diesel dispensing facilities will require ample storage to meet the growing demand. Most estimates project that by 2014, DEF demand will reach between 300 and 750 million gallons nationwide.

What separates a CSI fiberglass Urea DEF tank from other options?

Thanks to a unique computer driven manufacturing process, our inner tank wall is not air-inhibited resulting in a glossy, smooth surface without the need for wax coatings/liners. The automated process produces a consistent, uniform tank thickness.

Underground fiberglass tanks provide a natural insulation barrier to extreme temperatures which can significantly impact the DEF shelf life.

Containment Solutions is the only fiberglass storage tank provider with third party testing for DEF compatibility. 
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