In 1986 River City Enterprises, Division of Staffco, Inc., Peoria IL, developed a unique piston system to store and dispense viscous materials up to 500,000 centipoise. The non-pressure 400 gallon piston bins gave customers a system for the storage, handling and delivery of low, medium and high viscosity products. Rugged, lightweight, and durable, the piston bin provided a simple solution for handling viscous products and quickly became popular in many industries.
The piston system developed by River City is unique. It consists of a sealed, closed loop patented piston system and a plastic tank for storage. As the piston moves down, the inflatable piston seal wipes the inside tank wall, making the bin virtually 100% efficient. The piston also acts as a barrier to protect high quality, expensive materials from air, moisture, dirt, and other contamination. A positive displacement pump is used to fill and discharge the material through the 3" bottom valve and quick coupler.