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Diesel Exhaust Fluid (DEF) Heaters

Urea Blending Solutions

Automotive grade urea is used to manufacture Diesel Exhaust Fluid (DEF). The DEF is used with the Selective Catalytic Reduction system found in diesel powered vehicles to reduce harmful emissions into the atmosphere. The solid form of urea, called prills, is usually transported by rail tank car and requires a specific temperature to be unloaded from the cars. These urea prills are then combined with deionized water. Due to the endothermic reaction of urea in water, the deionized water must be heated using diesel exhaust fluid heaters to a specific temperature before combining with the Urea to make DEF.

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Liquid Fertilizer

Industrial urea is a great fertilizer for putting nitrogen back into the soil for plant production. Urea for fertilizer is produced with ammonia and carbon dioxide. Urea contains almost 50% nitrogen and is very stable to transport and handle. To produce liquid fertilizer from urea, water is heated to a specific temperature before mixing with the urea.

Steam Generators and Industrial Water Heaters

Sioux can provide you with industrial steam generators to heat rail tanker cars for offloading urea, and industrial water heaters made specifically to heat deionized water for DEF production. Sioux has over 80 years of experience manufacturing quality, industrial equipment for specific applications such as diesel exhaust fluid and liquid fertilizer production. We have industry specialists ready to provide you with more info about how Sioux's steam-generators and water heaters can help with your specific operation.


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Sioux serves a wide range of industries with our decades of experience, reliable products, and value added services that help companies every day around the world.

Why Sioux?

Sioux's products are built for the concrete, petroleum, mining, rail, greenhouse, food & beverage, and manufacturing industries with the highest quality and durability in mind. We strive to make sure our customers have the safest and most efficient equipment they can rely on year after year.

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Made in the USA Since 1939

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