Innovative impeller WILO SOLID
A sewage pump series with the innovative "SOLID" (Safe Operation Logic Impeller Design) impeller shape was presented by pump specialist WILO SE from Dortmund, Germany, at the IFAT ENTSORGA 2012 in Munich. "SOLID" has been specially designed for use in untreated sewage with a particularly high rate of solid materials.
The sewage pumps fitted with the "SOLID" impeller achieve hydraulic efficiency of up to 81 %. According to the manufacturer, they set a new standard in energy-efficient and economical disposal of untreated sewage. In comparison to vortex impellers, almost a quarter of the electricity costs for operating the pump can be saved using "SOLID". Due to the symmetrical design of the impeller and the defined flow guidance in the suction opening, vibrations can also be significantly reduced.
The "SOLID" impeller combines the advantages of the high efficiency of single and multi-channel impellers with the reliability of vortex impellers. In addition to optimal hydraulic properties for efficiency-optimised and economical operation, it also provides high rates of operational reliability.
With the "SOLID" impeller developed by Wilo, volume flows up to 670 l/s and delivery heights up to 80 m Hmax can be achieved. The pump series is available in nominal diameters up to DN350.
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