Spec Sheet

TECHNICAL SPECIFICATIONS
FL50-SERIES
EXTERNAL CONSTRUCTION:
Pump Volute and legs – Gray iron casting class 25
Motor Cover – Gray iron casting class 25. All
castings shall be powder coated for corrosion
resistance prior to assembly.
Fasteners – all fasteners shall be 300-series
stainless steel.
MOTOR
Submersible 3450 RPM, oil filled and hermetically
sealed. Class B insulation rating. 17-4 PH stainless
steel rotor shaft. Thermally protected on single
phase models. Three phase models shall have
overloads incorporated into the control panel,
properly sized for the horsepower and
amperage of pump.
IMPELLER
Cast iron – class 25, semi-open design capable
of passing a minimum 3/4" solids.
SHAFT SEAL
Carbon/ceramic unitized design with BUNA N
elastomers and stainless steel housing.
POWER CORD
10' cord length – Standard. Quick-disconnect
design allows for easy field replacement.
Optional lengths available per chart.
LEVEL CONTROL
Automatic models shall be controlled by an
adjustable wide-angle style switch sealed in
a polymeric float. A series piggy-back style
plug shall be provided to allow for manual
bypass operation. Not available on 50' models
and 3-Phase.
DISCHARGE
2" FNPT with a 1-1/2" FNPT threaded cast iron
flange provided.
DIMENSIONAL DATA:
Height: 16.4" Width: 11.2"
(manual models)
Maximum Fluid Temperature:
100˚ F, 40˚ C Continuous Duty
140˚ F, 60˚ C Intermittent
FL50-Series
PERFORMANCE CURVE 60 Hz.
Liberty Pumps • 7000 Apple Tree Avenue • Bergen, New York 14416 • Phone [phone] Fax [phone]
www.libertypumps.com
Copyright © Liberty Pumps, Inc. 2017
All rights reserved. LLIT 6762 R08/17
Specifications are subject to change without notice.
70
60
50
40
30
20
10
0
10
U.S. Gallons Per Minute
Total Head in Feet
Total Head in Meters
Liters Per Minute
20 30
40 50
3.0
0
60
18911438
0
6.1
9.1
12.2
15.2
18.3
21.3
FL50
70 80 90 100
265
341
FL50-Series
Model HP Volts Ph Amps Cord Switch Plug-End Wgt
FL51A 1/2 115 1 12 10' Automatic Series Plug 62
FL51A-2 1/2 115 1 12 25' Automatic Series Plug 64
FL51A-3 1/2 115 1 12 35' Automatic Series Plug 66
FL51M 1/2 115 1 12 10' Manual Plug 61
FL51M-2 1/2 115 1 12 25' Manual Plug 62
FL51M-3 1/2 115 1 12 35' Manual Plug 63
FL51M-5 1/2 115 1 12 50' Manual Bare Lead 65
FL52A 1/2 208-230 1 6.5 10' Automatic Series Plug 62
FL52A-2 1/2 208-230 1 6.5 25' Automatic Series Plug 64
FL52A-3 1/2 208-230 1 6.5 35' Automatic Series Plug 66
FL52M 1/2 208-230 1 6.5 10' Manual Plug 61
FL52M-2 1/2 208-230 1 6.5 25' Manual Plug 62
FL52M-3 1/2 208-230 1 6.5 35' Manual Plug 63
FL52M-5 1/2 208-230 1 6.5 50' Manual Bare Lead 65