Description
Liberty Pumps 251-2 is a 1/3HP Automatic Submersible Sump/Effluent Pump with wide-angle quick-disconnect float switch (mercury-free, mechanically activated) and 25ft power cord. This Liberty Pump features a unique one-piece cast iron housing and thermally protected & permanently lubricated motor. Efficient motor design of this energy saving pump reduces electrical usage by up to 40%.
The switch of this pump is factory-preset and is not adjustable. Turn-on level of the switch is 11″ and turn-off level is 4-1/2″. Other pumping differentials may be obtained by tethering the switch cord to the discharge pipe. NOTE: A minimum cord length of 3-1/2″ from the tether point to the top surface of the float is required for proper switch operation. If using a differential other than the factory setting, be sure that when the pump shuts off, at least 3-1/2″ of fluid is left in the basin so the impeller remains submerged.
Liberty Pumps 251-2 has 1-1/2″ NPT discharge, 1/2″ solids-handling and 18′ shut-off head.
For added protection, consider the addition of a back-up pump such as Liberty’s SJ10 SumpJet, as well as an alarm such as Liberty’s ALM-2 in applications where loss of pump function could result in property damage. If an alarm is used, it must be connected to a separate electrical circuit.
CAUTION: Do not let the pump run dry.
Applications:
- De-watering
- Sump Applications
- Effluent Applications
Features:
- Rugged 1/3 HP motor, oil filled with thermal overload protection
- 1/2″ solids handling
- 1-1/2″ discharge
- Hermetically sealed motor and switch cavities, and permanently lubricated bearings
- Liberty’s UNI-BODY casting – a solid, onepiece housing that eliminates the lower motor seal ring found on other pumps
- Epoxy powder coat finish
- Vortex style impeller for superior solids-handling. Made of high temperature engineering polymer
- Quick-disconnect 25′ standard power cord allows replacement of cord in seconds without breaking seals to motor
- Fasteners – all non-corrosive stainless steel
- 416 stainless steel rotor shaft
Technical Specifications:
- Horsepower: 1/3 HP
- Cord length: 25′
- Discharge: 1-1/2″
- Solids Handling: up to 1/2″
- Shut-off Head: 18′
- Voltage: 115V
- Amps: 5.2
- Hertz: 60 Hz
- Phase: 1
- Maximum fluid temperature: 140°F
- Height: 10.5″
- Width: 9.6″
- Weight: 23 lbs.
- Minimum pit/basin diameter: 14″ in Sump and 18″ in Effluent applications
- Minimum pit/basin depth: 18″ in Sump and 24″ in Effluent applications
Warranty:
3 years manufacturer’s warranty
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