Spec Sheet

Cord Lengths
Performance Curve
Dimensional Data
1/3 hp 115V 5.2A
Thermally protected and permanently lubricated
Permanent Split Capacitor (PSC)
MODEL 10' 25'(-2) 35'(-3) 50'(-5)
250 Standard Optional Optional Optional
251 Standard Optional Optional Optional
253 Standard Optional Optional N/A
257 Standard Optional N/A N/A
10' cord length standard on all models. For optional lengths, add “-2, -3
or -5” sux to model number.
Example: for model 250 with 35' cord, order 250-3
Weight: 20 lbs (Model 257)
Height: 10-1/2"
Major Width: 9-3/5" (Model 250)
Liberty Pumps - 7000 Apple Tree Avenue - Bergen, New York 14416
Phone [phone] - Fax [phone] - www.LibertyPumps.com
Copyright © Liberty Pumps, Inc. 2020 All rights reserved. LLIT002500-R07/20E
Specifications subject to change without notice.
250-Series
Model 257 VMF
VMF, magnetically
operated vertical
float switch –
operates in a 10"
diameter sump
Model 253
Wide-angle float
switch with series
(piggyback) plug,
allows manual
operation of pump
Model 250
Manual, no
float switch
Model 251
Quick-connect
wide-angle
float switch,
mercury-free
Effluent Models Sump Models
0
Total Head in Meters
Total Head in Feet
US Gallons Per Minute
3.0
4.6
6.1
7.6
1.5
Liters Per Minute
0
189.3113.637.9 75.7151.4
0
0
5
10
15
20
25
10 20 30 40 50
60 Hz, 3450 RPM
Motor Specifications
Impeller
Paint
Max Fluid Temperature
Vortex style engineered polymer
Powder coat
140°F (60°C) Intermittent
104°F (40°C) Continuous duty
Motor Housing
Power Cord Type
Class 25 cast iron
SJTW (10' and 25' models)
SJTOOW (35' and 50' models)
Shaft
Stainless
Bearings
Hardware
Mechanical Shaft Seal
Upper and lower ball bearings
Stainless
Engineered double lip seal