Submittal Sheet

Table Of Contents

LowPro-Series_P6

Specifications subject to change without notice.

LowPro51LP Specifications

1.01 GENERAL

The contractor shall provide labor, material, equipment, and incidentals required to provide_________ (QTY) centrifugal pumps as specified

herein. The pump models covered in this specification are Model LE51LP single-phase pumps as manufactured by Liberty Pumps.

2.01 OPERATING CONDITIONS

Each submersible pump shall be rated at 1/2 hp, 115 Volts, single-phase, 60 Hz, 1725 RPM. The submersible pump shall be capable of

handling residential sewage with 2” solid handling capability. The unit shall have a shut-off head of 23 feet and a maximum flow of

2 GPM at 1.5 feet of total dynamic head.

3.01 CONSTRUCTION

Each centrifugal pump shall be equal to the certified Model LE51LP pumps as manufactured by Liberty Pumps, Bergen NY. The

castings shall be constructed of class 25 cast iron. The motor housing shall be oil filled to dissipate heat. Air filled motors shall not be

considered equal since they do not properly dissipate heat from the motor. All mating parts shall be machined and sealed with a Buna-N

O-ring. All fasteners exposed to the liquid shall be stainless steel. The motor shall be protected on the top side with sealed cord entry

plate with molded pins to conduct electricity, eliminating the ability of water to enter internally through the cord. The motor shall be

protected on the lower side with a unitized ceramic/carbon seal with stainless steel housings and spring.

4.01 ELECTRICAL POWER CORD

The submersible pump shall be supplied with a multi-conductor power cord. It shall be cord type SJTW, capable of continued exposure to

the pumped liquid. The power cord shall be sized for the rated full load amps of the pump in accordance with the National Electric Code.

The power cable shall not enter the motor housing directly but will conduct electricity to the motor by means of a water tight compression

fitting cord plate assembly, with molded pins to conduct electricity. This will eliminate the ability of water to enter internally through the

cord via a damaged or wicking cord.

5.01 MOTORS

Single-phase motors shall be oil filled, permanent split capacitor, class B insulated NEMA B design, rated for continuous duty. At

maximum load, the winding temperature shall not exceed 266°F unsubmerged. Since air filled motors are not capable of dissipating heat,

they shall not be considered equal. The pump motor shall have an integral thermal overload switch in the windings for protecting the

motor. The capacitor circuit shall be mounted internally in the pump.

6.01 BEARINGS AND SHAFT

An upper and lower ball bearing shall be required. Both bearings shall be permanently lubricated by the oil that fills the motor housing.

The motor shaft shall be made of 300 or 400 series stainless steel and have a minimum diameter of 0.50".

7.01 SEALS

The pump shall have a unitized carbon/ceramic seal with stainless steel housings and spring equal to Crane Type 6A. The motor plate/

housing interface shall be sealed with a Buna-N O-ring.

8.01 IMPELLER

The impeller shall be engineered thermoplastic elastomer, with pump out vanes on the back shroud to keep debris away from the seal

area and shall be threaded to the motor shaft.