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 Modelssuch As Liberty Pumps 251 And 253 Are Better Suited For Effluent Applications And Are Easily Adjustable For Different On/Off Levels.
Features:
- Rugged 1/3 Hp Motor, Oil Filled With Thermal Overload Protection
- 1/2″ Solids Handling
- 1-1/2″ Discharge
- Max Intermittent Fluid Temperature: 140°F (60°C)
- Max Continuous Duty Fluid Temperature 104°F (40°C)
- 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 Made Of Non-Corrosive Stainless Steel
- 416 Stainless Steel Rotor Shaft
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