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250-Series

Cast Iron

Submersible

Sump/Effluent

Pumps

1/3 hp

1-1/2" Discharge

1/2" Solids Handling

Features:

· Unique one-piece cast body

eliminates motor housing

seal ring

· Durable, Epoxy powder coat finish

· Vortex style impeller

· Permanently sealed and

lubricated bearings

· Quick-disconnect 10' standard power

cord allows replacement of cord in

seconds without breaking seals

to motor. (25' length optional)

· Heavy duty VMFTM switch

on vertical float models

(U.S. Patent #5324171)

Models:

250 Manual

251 Wide-Angle Float

253 Wide-Angle Float, Series Plug

257 VMF, Vertical Magnetic Float

Wide-Angle Floats are mercury-free,

mechanically activated.

One-Piece Cast
Motor Housing

Quick-Disconnect
Power Cord

Patented VMF Switch

MODEL 257

Available with
Wide-Angle Switch

ALL MODELS FEATURE:

· 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, one-

piece 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.

· Carbon and ceramic shaft seal.

· Quick-disconnect 10' standard power cord

allows replacement of cord in seconds without
breaking seals to motor. (25' length optional)
For 25' cord option, add a "-2" suffix to model
number. Example: 257-2 for Model 257 with
25' cord.

· Fasteners all non-corrosive stainless steel.

· 416 stainless steel rotor shaft.

· 2 YEAR LIMITED WARRANTY

MOTOR SPECIFICATIONS:

1/3 hp 115V 5.2 amps 60Hz
Thermally Protected & Permanently Lubricated

Maximum Fluid Temperature: 140°F

DIMENSIONAL DATA:

Weight: Model 257: 20 lbs.

Height:

10.5"

Major Width:

9.6" (manual model 250)

PERFORMANCE CURVE

EFFLUENT MODELS

SUMP

otal Head in Meters

Liters Per Second

3.2

1.9

.64

1.3

2.6

Model 257 VMF

(U.S. Patent #5324171)
VMF switch, magnetically
operated vertical float
operates in a 10"
diameter sump.

Model 253

Wide-angle float with
series (piggy-back)
plug, allows manual
operation of pump

Model 250

Manual, no switch

Model 251

Quick-disconnect
wide-angle float,
mercury-free

1/3 hp Sump/Effluent Pumps for Professionals!

250-SERIES

Specifications are subject to change without notice.

Dual safety certification for
the United States and Canada.