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

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, reliability, 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

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.

Model: 280
HP: 1/2
Volts: 115V
Phase: 1
Amps: 8.0
Automatic: No
Impeller: Vortex

Weight: 29 lbs
Height: 13"
Major Width: 10"
Weight: 29 lbs.