1/2 Hp. Automatic Cast Iron Sewage Pump - Select 115V or 230V

Sporting a new tough powder coat finish over heavy cast iron housings, Liberty's LE50-series is a commercial-grade workhorse for residential and light commercial sewage applications.  Its efficient 1/2 hp motor with permanently lubricated bearings, stainless steel fasteners and quick-disconnect power cord design make this a favorite choice among plumbing professionals.  Other features include piggyback style switches on automatic models, 2" solids-handling ability and a shut-off head of 25 feet.

Includes float switch.

The Liberty LE51A & LE52A,  Automatic Cast Iron Sewage Pumps Feature:

• 1/2 hp / 1750 RPM
• 2" Solids-Handling
• 2" FIP Discharge
• 112 Gallons Per Minute at 10 Foot (TDH) *Total Dynamic Head
• 25 ' Maximum TDH *
• Heavy cast iron construction
• 2-vane, semi open, corrosion resistant Hytrel** impeller
• Oil filled, thermally protected motor
• Permanently lubricated bearings
• All Stainless Steel fasteners
• Stainless steel rotor shaft
• 10' UL approved power cord standard with quick-disconnect design, allows replacement of cord in seconds without breaking seal to motor!  (A 20' cord is optional. This product is not in Stock, but it does ship quickly. Call or e-mail us for more information.)
• Mercury-free float switch with "Series" type plug f
• Height - 12.75"
• Major width not including float switch - 11.5"
• Two year warranty

About Total Dynamic Head

*Q: What is TDH (Total Dynamic Head)?

A: TDH or Total Dynamic Head  is a combination of two components – Static Head and Friction Head – and is expressed in feet. Static head is the actual vertical distance measured from the minimum water level in the basin to the highest point in the discharge piping. Friction head is the additional head created in the discharge system due to resistance to flow within its components.

** Hytrel is a registered trademark of DuPont Polymers.

About The MOTOR of the The Liberty LE51A & LE52A, Sewage Ejectors.
The pump motor shall be of the submersible type, oil filled, hermetically sealed and shall be thermally protected. The overload element shall automatically reset when motor cools. Motor windings shall be of the class B insulation rating. The rotor shaft shall be made of 416 stainless steel and shall be supported by lower and upper sleeve bearings.

The power cord is a quick-disconnect design allowing replacement of the cord without breaking seals to the motor and/or oil chamber.

About the IMPELLER of the Liberty LE51A & LE52A, Automatic Cast Iron Sewage Ejector Pumps
The pump shall have a 2-vane semi-open impeller capable of passing a 2" spherical solid.

About SEAL of the Liberty LE51A & LE52A,  Sewage Pumps
The shaft seal shall be of the carbon/ceramic unitized design, with BUNA N elastomers and stainless housings.

EXTERNAL CONSTRUCTION of the The Liberty LE51A & LE52A, Cast Iron Sewage Pumps
The pump volute, legs and motor housing shall be gray iron castings, class 25 or better. All fasteners shall be of 300-series stainless steel or brass.

LEVEL CONTROL of the The Liberty LE51A & LE52A, Automatic Cast Iron Sewage Pumps
Automatic units are controlled by an adjustable, mercury-free, wide angle float switch. Float cord is equipped with a series (Piggy-Back) plug  for manual bypass operation.