The Heidra 150VSG is a versatile, 6" (150mm) hydraulic submersible pump capable of passing large solids up to 5" (125mm), stringy materials, and slurries. A remotely operated slurry gate allows the pump to act as a mixer, ideal for pumping thick, viscous, solids-laden sludges, such as those found in WWTP digesters, environmental clean-ups and API separators at refineries.