5 - 7 Days Automatic Effluent Pump w/ Wide Angle Float Switch, 1/2HP, 25' cord, 115V

The FL51A-2 from Liberty Pumps is an Automatic Effluent Pump w/ Wide Angle Switch, 1/2HP, 25' cord, 115V. This sump/effluent pump comes with an adjustable, mercury-free switch that has a series (piggy-back) plug for manual bypass Operation. The switch has a turn-on level of 12" and turn-off level of 5". This effluent sump pump has a discharge of 1-1/2"FNPT and solid-handling capabilities of 1/2".

The Liberty Pump FL51A-2 automatic submersible sump/effluent pump is ideal for mid-range applications and has a shut-off head of 48'. These effluent sump pumps are designed for STEP systems, liquid waste transfer and higher head de-watering applications.


  • Semi-open impeller permits passageof solids without clogging;
  • Cast iron construction with all stainless and brass fasteners;
  • 416 stainless steel rotor shaft;
  • Oil-filled, hermetically sealed motors with thermal overload protection;
  • Permanently lubricated upper and lower ball bearings;
  • Unitized, carbon and ceramic shaft seal;
  • Single float, mercury-free level control with series plug for manual bypass Operation - standard on automatic models;
  • Adjustable pumping range;
  • 1-1/2" FNPT discharge;
  • Quick-disconnect 25' standard power cord allows replacement of cord in seconds without breaking seals to motor;

Technical Specifications:

  • Horsepower: 1/2 HP;
  • Cord length: 25';
  • Discharge: 1-1/2" FNPT;
  • Solids Handling: up to 1/2";
  • Shut-off Head: 48';
  • Voltage: 115V;
  • Amps: 12;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Maximum fluid temperature: 140°F;
  • Height: 13.75";
  • Width: 10.25";
  • Weight: 57 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;


  • 3 years manufacturer's warranty
Cast Iron
Wide Angle Float Switch
Horse Power
1/2 HP
Product Type
Effluent Pumps
Max Shut-Off Head
50-60 ft
Max Flow @ 5' of Head
80-90 GPM
Liberty Pumps

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Automatic Effluent Pump w/ Wide Angle Float Switch, 1/2HP, 25' cord, 115V

  • Views: 3515
  • Automatic Effluent Pump w/ Wide Angle Float Switch, 1/2HP, 25' cord, 115V QR Code
  • Brand: Liberty Pumps
  • Model: FL51A-2
  • MPN: FL51A-2
  • Availability: 5 - 7 Days
  • $ 834.00

Tags: Sump Pumps, Effluent Pumps, Pumps, Plumbing Pumps, Plumbing Supply