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AZL, American Z Line



AZL: Funnel Flow Tank Cars

Developed by the Union Tank Car Company during the 1960s, Funnel Flow cars carry all kinds of liquids and slurries (mixtures of water and other materials) that can be unloaded by gravity. The car name says it all the entire tank is slightly lower in the middle. Like a funnel, the contents flow towards the lowest point ensuring faster, more complete unloading.
Funnel Flow tank cars come in several lengths; dense, heavy liquids are shipped in shorter cars; lighter fluids move in the 54-footers. Many cars that haul thick liquids such as asphalt, molten sulfur and corn syrup, are outfitted with internal heating coils to reheat the contents for faster unloading.
 Description courtesy of "Train Sets Only"














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