Liberty FL31A-2, Submersible Effluent Pump

Liberty's FL Series of submersible effluent pumps are designed for durability and versatility. These heavy duty pumps feature cast iron construction and a stainless steel rotor shaft. Each pump can handle solids up to 3/4".

The Liberty FL family includes seven different series: FL30, FL50, FL60, FL70, FL100, FL150 and the FL200. The number designations denote the horsepower of each series; thus the FL30 is a 1/3 HP series, the FL70 is a 3/4 HP series, etc.

The family is also divided according to the amount of head each series can reach for a given application. The FL30 series is specifically designed for low head applications in STEP (Septic Tank Effluent Pumping) systems, LPP (Low Pressure Pipe) systems, mound systems, liquid waste transfer and commercial sump applications. The FL50, FL60 and FL70 series are designed for medium head applications, while the the FL100, FL150 and FL200 series are designed for high head purposes.

Designations:

  • Models with the suffix "M" are manual models, while "A" denotes an automatic model.
  • The digit at the end of each model number represents cord length (2 for 25 ft., 3 for 35 ft., 5 for 50 ft.).

For more information on the Liberty FL family of submersible effluent pumps, visit pumpproducts.com or call us with any questions at 1-800-429-0800.


LOW HEAD FL30-SERIES

Liberty FL30 Series Model Comparison Chart

Model Discharge HP Voltage Phase Max. GPM Max. Head FLA Cord Operation Solids Warranty
FL31M 1-1/2" 1/3 HP 115 V 1 60 GPM 19 ft. TDH 12 amps 10 ft. Manual 3/4" 3 Years
FL31M-2 1-1/2" 1/3 HP 115 V 1 60 GPM 19 ft. TDH 12 amps 25 ft. Manual 3/4" 3 Years
FL31A 1-1/2" 1/3 HP 115 V 1 60 GPM 19 ft. TDH 12 amps 10 ft. Automatic 3/4" 3 Years
FLM31A-2 1-1/2" 1/3 HP 115 V 1 60 GPM 19 ft. TDH 12 amps 25 ft. Automatic 3/4" 3 Years
FL32M 1-1/2" 1/3 HP 208-230 V 1 60 GPM 19 ft. TDH 6.6 amps 10 ft. Manual 3/4" 3 Years
FL32M-2 1-1/2" 1/3 HP 208-230 V 1 60 GPM 19 ft. TDH 6.6 amps 25 ft. Manual 3/4" 3 Years
FL32A 1-1/2" 1/3 HP 208-230 V 1 60 GPM 19 ft. TDH 6.6 amps 10 ft. Automatic 3/4" 3 Years
FL32A-2 1-1/2" 1/3 HP 208-230 V 1 60 GPM 19 ft. TDH 6.6 amps 25 ft. Automatic 3/4" 3 Years
PERFORMANCE CURVES

Liberty FL30-Series Effluent Pump Curve

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MEDIUM HEAD FL50 AND FL70-SERIES

Liberty Medium Head FL50 & FL70 Model Comparison Chart

Model Discharge HP Voltage Phase Max. GPM Max. Head FLA Cord Operation Solids Warranty
FL51M 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 10 ft. Manual 3/4" 3 Years
FL51M-2 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 25 ft. Manual 3/4" 3 Years
FL51M-3 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 35 ft. Manual 3/4" 3 Years
FL51A 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 10 ft. Automatic 3/4" 3 Years
FL51A-2 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 25 ft. Automatic 3/4" 3 Years
FL51A-3 2" FNPT 1/2 HP 115 V 1 93 GPM 55 ft. TDH 12 amps 35 ft. Automatic 3/4" 3 Years
FL52M 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 10 ft. Manual 3/4" 3 Years
FL52M-2 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 25 ft. Manual 3/4" 3 Years
FL52M-3 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 35 ft. Manual 3/4" 3 Years
FL52A 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 10 ft. Automatic 3/4" 3 Years
FL52A-2 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 25 ft. Automatic 3/4" 3 Years
FL52A-3 2" FNPT 1/2 HP 208-230 V 1 93 GPM 55 ft. TDH 6.5 amps 35 ft. Automatic 3/4" 3 Years
FL72M 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 10.5 amps 10 ft. Manual 3/4" 3 Years
FL72M-2 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 10.5 amps 25 ft. Manual 3/4" 3 Years
FL72M-3 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 10.5 amps 35 ft. Manual 3/4" 3 Years
FL72A 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 10.5 amps 10 ft. Automatic 3/4" 3 Years
FL72A-2 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 10.5 amps 25 ft. Automatic 3/4" 3 Years
FL72A-3 2" FNPT 3/4 HP 208-230 V 1 98 GPM 65 ft. TDH 5.3 amps 35 ft. Automatic 3/4" 3 Years
FL73M-2 2" FNPT 3/4 HP 208-230 V 3 98 GPM 65 ft. TDH 7.5 amps 25 ft. Manual 3/4" 3 Years
FL73M-3 2" FNPT 3/4 HP 208-230 V 3 98 GPM 65 ft. TDH 7.5 amps 35 ft. Manual 3/4" 3 Years
FL74M-2 2" FNPT 3/4 HP 440-480 V 3 98 GPM 65 ft. TDH 3.5 amps 25 ft. Manual 3/4" 3 Years
FL74M-3 2" FNPT 3/4 HP 440-480 V 3 98 GPM 65 ft. TDH 3.5 amps 35 ft. Manual 3/4" 3 Years
PERFORMANCE CURVES

Liberty FL50-Series Effluent Pump Curve

 fl50-curve

Liberty FL70-Series Effluent Pump Curve

fl70-curve


HIGH HEAD FL100, FL150 AND FL200-SERIES

Liberty High Head FL100, FL150 and FL200-Series Effluent Pump Model Comparison Chart

Model Discharge HP Voltage Phase Max. GPM Max. Head FLA Cord Operation Solids Warranty
FL102M-2 2" FNPT 1 HP 208-230 V 1 106 GPM 90 ft. TDH 12 amps 25 ft. Manual 3/4" 3 Years
FL102M-3 2" FNPT 1 HP 208-230 V 1 106 GPM 90 ft. TDH 12 amps 35 ft. Manual 3/4" 3 Years
FL102A-2 2" FNPT 1 HP 208-230 V 1 106 GPM 90 ft. TDH 12 amps 25 ft. Automatic 3/4" 3 Years
FL102A-3 2" FNPT 1 HP 208-230 V 1 106 GPM 90 ft. TDH 12 amps 35 ft. Automatic 3/4" 3 Years
FL103M-2 2" FNPT 1 HP 208-230 V 3 106 GPM 90 ft. TDH 9 amps 25 ft. Manual 3/4" 3 Years
FL103M-3 2" FNPT 1 HP 208-230 V 3 106 GPM 90 ft. TDH 9 amps 35 ft. Manual 3/4" 3 Years
FL104M-2 2" FNPT 1 HP 208-230 V 3 106 GPM 90 ft. TDH 9 amps 25 ft. Manual 3/4" 3 Years
FL104M-3 2" FNPT 1 HP 208-230 V 3 106 GPM 90 ft. TDH 9 amps 35 ft. Manual 3/4" 3 Years
FL152M-2 2" FNPT 1-1/2 HP 208-230 V 1 130 GPM 110 ft. TDH 15 amps 25 ft. Manual 3/4" 3 Years
FL152A-2 2" FNPT 1-1/2 HP 208-230 V 1 130 GPM 110 ft. TDH 15 amps 25 ft. Automatic 3/4" 3 Years
FL153M-2 2" FNPT 1-1/2 HP 208-230 V 3 130 GPM 110 ft. TDH