Liberty 280 Cast-Iron Submersible Sump / Effluent Pump — ½ HP, Manual

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Liberty Pumps Heavy-Duty 1/2 HP Sump and Effluent Pump The Liberty 280 is a robust **cast-iron submersible sump / effluent pump** built for demanding use where durability, reliabil ity, and long life matter. With its **uni-body one-piece casting**, stainless-steel hardware, and oil-filled, thermally protected motor, it’s engineered to perform under tough conditions. Key Features & Benefits ½ HP motor for strong performance 1½" discharge port with vortex-style impeller Handles solids up to ¾" diameter Oil-filled, hermetically sealed motor with thermal overload protection Stainless-steel rotor shaft, removable bottom screen, and stainless fasteners Quick-connect power cord for easy replacement without breaking seals Cast iron “uni-body” housing eliminates motor seal ring for greater durability Specifications Model 280 Horsepower ½ HP Discharge 1½ FNPT Solids Handling ¾ (0.75 in) Shut-off Head 37 ft Max Flow ~62 GPM @ 5 ft head Max Temperature (Continuous) 104 °F (40 °C) } Intermittent Temp 140 °F (60 °C) Weight ~30 lbs (13.6 kg) Height 13" Typical Applications Sump or effluent systems requiring tough performance in wet environments Where gravity drainage is not feasible and robust pumping is needed STEP systems, mound systems, or wastewater transfer where ¾" solids handling is useful Note: The 280 is the manual version (no float). For models with automatic float control, see 283 or 287. Always follow Liberty’s installation guidelines and ensure proper pump sizing, venting, and check-valve layout. Show more