Liberty Pumps 257 Automatic Sump Pump – 1/3 HP, 115V

The Liberty Pumps 257 is an automatic 1/3 HP, 115V submersible sump pump for sump and dewatering applications. Its Vertical Magnetic Float (VMF) switch provides automatic operation in a compact installation.

Product highlights

• One-piece cast iron housing
• Vertical Magnetic Float switch
• 1-1/2-inch discharge and listed 10-foot cord

Application note: Model 257 is for sump and dewatering applications. The manufacturer does not recommend this VMF model for effluent applications.

Check the fit before ordering

Share your existing pump model, voltage, discharge pipe size, sump pit dimensions and required lift. Use the pump curve to check flow at your operating head; maximum flow and maximum head are separate ratings.

Local pump help in Walnut Creek

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Compare sump pumps and battery backup systems, or ask about pump accessories, check valves and compatible switches.

Specifications and features

The 257 Liberty Pump is a 1/3 HP Automatic Submersible Sump Pump that is magnetically operated with a vertical float VMF switch and 10ft power cord. It is a unique one-piece cast iron housing and thermally protected & permanently lubricated motor. This pump can operate in a 10" diameter sump pit, handles solids up to 1/2", and has a 18' shut-off head.

Model 257 is for Sump and De-watering Applications only. This Vertical Magnetic Float (VMF) model is not recommended for effluent applications due to their short On/Off cycle. Wide angle float models such as Liberty Pumps 251 and 253 are better suited for effluent applications and are easily adjustable for different On/Off levels.

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