The line of Godwin Sub-Prime GSL electric submersible pumps is designed for large sludge or dewatering applications. The GSL60 model is capable of maximum flow rates from 240 gpm (15.1 l/sec.) and discharge heads to 85 feet (25.9M). The GSL80 model is capable of maximum flow rates from 84 to 555 gpm (5.3 to 35.0 l/sec.) and discharge heads to 154 feet (47M). Like the dewatering models in the Sub-Prime line, these submersible sludge pumps are suited to tough construction, mining and industrial applications. The design features a side discharge that handles solids up to 3.2" (81mm) in diameter (GSL80) and rugged construction for long life, including a cast chromium steel impeller and heavy duty polyurethane-lined volute. Other benefits include tandem mechanical seals for dry running and extra protection against leakage, and a dual voltage junction chamber for convenient changeover in the field (GSL80).