Why Do I Need Special Equipment To Store And Dispense DEF?
DEF is the mixture of a nitrogen compound called urea with deionized water. The material is essential to perform selective catalytic reduction, a process that reduces the amount of pollutants that diesel engines produce from being released into our atmosphere. Though necessary for sustainability, DEF is not without its risks. Because it is deionized, DEF degrades any ionized materials that it touches. Most storage and pumping equipment contains traces of zinc, aluminum, copper, or brass, all of which are ionized. therefore, DEF cannot be safely stored in such equipment. Additionally, DEF cannot come into contact with outside air or water; if it does, it produces crystals/creep, which can clog up equipment and destroy sensors that are on the exhaust systems of most diesel vehicles. DEF also freeze or crystallizes if it becomes colder than twelve degrees Fahrenheit, meaning it must be kept warm during storage in colder climates.
Options For DEF Storage And Dispersal
Ideally, you should store DEF in containers made of either stainless steel or high-density polyethylene. Storage tanks should be heated, and should be kept either inside or under ground. DEF pumps should be self-contained and carefully sealed off from the outside to prevent contaminants from getting into the storage tank.
A number of different manufacturers sell equipment suitable for DEF storage. Among the leading products are:
- The OPW Filling Solution: This product comes with a stainless steel storage tank, a spill container, retractable pipes, and steel connectors. It is available in fifteen-, twenty-, and thirty-gallon capacities, and has a long service life.
- The Franklin Pump Motor Assembly: Complete with a bypass relief valve and a pressure gauge, connector, this product is ideal for safe, quick dispensing of DEF.
- The Tecalemit Storage and Dispensing Unit: With an alternative solution for storage outside of retail with a capacity ranging from a 270 gal tote to a five hundred gallon and over two thousand, this compact unit is ideal for bulk DEF storage. It can also hold lubricants, anti-freeze, and window washing fluid.
- BlueUSA's Retail Mini-Bulk Storage Unit: This corrosion-resistant high-density polyethylene tank comes with its own heater and leak detector. It is available with eight hundred-gallon, one thousand-gallon, or two thousand-gallon capacities.