Liberty Manual Submersible Sewage Pump, 115V, 1/2 HP

Liberty Submersible Sewage Pump — LE51M, 1/2 HP, 115V, Manual Operation

The Liberty LE51M Submersible Sewage Pump delivers reliable performance and high-capacity solids handling for residential and light commercial wastewater applications. Powered by a 1/2 HP motor with a 115V supply, it features a 2-vane semi-open impeller capable of handling 2-inch solids. Equipped with a 10-foot quick-disconnect power cord, this manual pump is designed for use with an approved external float or motor control system. Built for durability and efficiency, it provides dependable sewage and wastewater removal under continuous-duty conditions.

• Model number LE51M identifies this Liberty Pumps manual submersible sewage pump with a 1/2 HP motor.
• Designed for residential and light commercial sewage applications, including sump basins and sewage ejector systems.
• Operates on 115 volts with a 10-foot quick-disconnect power cord for easy servicing and installation.
• Features a 2-vane semi-open impeller that allows for the passage of 2-inch spherical solids without clogging.
• Manual operation type — must be used with an approved liquid level or motor control system rated for full motor load.
• Constructed for continuous-duty operation in demanding wastewater environments.
• Note: Do not operate the pump dry to prevent motor or seal damage.

Technical Data & Performance

• Type: Submersible sewage pump (manual operation)
• Brand: Liberty Pumps
• Model: LE51M
• Horsepower: 1/2 HP
• Voltage: 115 VAC
• Motor Type: Permanent split capacitor (PSC), oil-filled, thermally protected
• Amperage (Full Load): Matches approved control system rating
• Cord Length: 10 feet, quick-disconnect style for easy replacement
• Discharge Size: 2 inch NPT
• Impeller Type: 2-vane semi-open impeller
• Solids Handling Capacity: Up to 2 inches
• Maximum Head: Approximately 25 feet (depending on installation and conditions)
• Flow Rate: Designed for high-volume discharge in sewage or effluent applications
• Motor Protection: Thermal overload protection for safe, reliable operation
• Housing Material: Cast iron construction with epoxy powder coat finish for corrosion resistance
• Seal: Permanently lubricated double mechanical seal
• Bearings: Upper and lower ball bearings for smooth, quiet operation
• Mounting: Submersible, vertical position in approved basin or sump
• Applications: Sewage ejector pits, residential and light commercial wastewater systems
• Operation Caution: Must be used with approved external float or control; not for dry-run use
• Provides durable, efficient wastewater removal with rugged construction, strong solids handling, and long-term reliability.