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250-Series

Product catalog summary

Overview: The 250-Series Cast Iron Submersible Sump/Effluent Pumps are designed for professional use, featuring a rugged 1/3 hp motor with thermal overload protection. These pumps are capable of handling 1/2" solids and have a 1-1/2" discharge.

Key Features:

Unique one-piece cast body eliminates the need for a motor housing seal ring.
Durable epoxy powder coat finish and vortex style impeller for superior solids handling.
Permanently sealed and lubricated bearings.
Quick-disconnect 10' standard power cord, with optional lengths available.
Heavy-duty VMF switch on vertical float models.
Wide-angle floats are mercury-free and mechanically activated.

Models:

250 Manual: No switch.
251 Wide-Angle Float: Quick-disconnect, mercury-free.
253 Wide-Angle Float, Series Plug: Allows manual operation.
257 VMF: Vertical Magnetic Float, operates in a 10" diameter sump.

Motor Specifications:

1/3 hp, 115V, 5.2 amps, 60Hz.
Thermally protected and 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: The performance curve indicates the pump's efficiency in handling effluent and sump applications, with a focus on total head and liters per minute.

Certifications: Dual safety certification for the United States and Canada.

Cord Length Options: Standard 10' cord length on all models, with optional lengths of 25', 35', and 50' available for certain models.

Catalog excerpts

• Unique one-piece cast body eliminates motor housing seal ring • Durable epoxy powder coat finish • Vortex style impeller lubricated bearings ' Quick-disconnect 10' standard power cord allows replacement of cord in seconds without breaking seals to motor, (other lengths available) • Heavy duty VMF switch on vertical float models Available with Wide-Angle Switch 253 Wide-Angle Float, Series Plug 257 VMF, Vertical Magnetic Float Wide-Angle Floats are mercury-free, mechanically activated.

Open the catalog to page 1

1/3 hp Sump/Effluent Pumps for Professionals! • Rugged 1/3 hp motor, oil filled with thermal overload protection. • 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. • Fasteners - all non-corrosive stainless steel. • 416 stainless steel rotor shaft. 250 Standard Optional Optional Optional 251 Standard Optional Optional...

Open the catalog to page 2

250-Series

250-Series

Catalog excerpts

All Liberty Pumps catalogs and technical brochures