The unit is transportable and can be installed on a vertical pole frame. The thin-profi le impeller is designed to produce a circulation fl ow with reduced peripheral turbulence for optimum hydraulic effi ciency. The result is lower electricity consumption than other equipment currently available. This mixer is available with 430 to 1,000 mm diameter impellers and is designed for continuous use. The shaft is sealed externally and internally by two mechanical seals mounted either side of an oil sump.