Truck Using Diesel Exhaust Fluid

A urea-based chemical reactant designed specifically for use in SCR systems to reduce NOx emissions

To meet 2010 EPA regulations in North America, most producers of diesel engines have announced plans to use Selective Catalytic Reduction (SCR) technology, requiring Diesel Exhaust Fluid (DEF).

  • Diesel Exhaust Fluid (DEF) is a high purity chemical fluid and should be treated similarly to engine oil.
  • Never store Diesel Exhaust Fluid (DEF) in old oil or diesel tanks.
  • Never add anything to Diesel Exhaust Fluid (DEF). For example adding water to Diesel Exhaust Fluid (DEF) will damage your SCR system and could void your vehicle warranty.

By providing the right kind of storage for this chemical, safety can be maintained – and the integrity of the product can be preserved.

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The Poly Processing DEF System

Several of Poly Processing’s features can make your storage system work for handling DEF. An IMFO® system is ideal for ease of cleaning and preventing contamination, since the tank drains at its true bottom. Heat pads and insulation can help keep the chemicals at the optimal temperature, greatly reducing the chance of separation and settling.

For additional information on storing diesel exhaust fluid, including recommended storage tanks and components, download our Diesel Exhaust Fluid Guide below.  Or, download the Tank Designs & Specifications Guide to see all of our chemical storage products.

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Chemical Resin Type Specific Gravity Rating Fitting Material Gasket Material Bolt Material
DEF XLPE or HDPE 1.35, 1.65, 1.9 PVC EPDM/Viton® 316SS

Tank Specifications

Recommended System Components

Technical Overview