Submittal Sheet

3.01 CONSTRUCTION:

Each centrifugal sewage pump shall be equal to the certified Series LE70 SERIES 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. The upper and lower bearing shall be capable of handling all

radial and thrust loads. The pump shall be furnished with stainless steel handle.

4.01 ELECTRICAL POWER CORD

The submersible pump shall be supplied with 10,25 or 35 feet of multiconductor power cord. It shall be cord type SJTW (1-PH) or SEOOW (3-

PH), 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, by means of 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. Three phase

motors shall be oil filled, class B insulated NEMA B design, rated for continuous duty. At maximum load the winding temperature shall not

exceed 130 degrees C unsubmerged. Since air filled motors are not capable of dissipating heat they shall not be considered equal. Single

phase pump motors shall have an integral thermal overload switch in the windings for protecting the motor. Three phase motors shall be used

with an appropriate controller with integral overload protection. The capacitor circuit shall be mounted internally in the pump on single phase

units.

6.01 BEARINGS AND SHAFT

Upper and lower ball bearings shall be required. The bearings shall be a single ball / race type bearing. Both bearings shall be permanently

lubricated by the oil, which fills the motor housing. The motor shaft shall be made of 300 or 400 series stainless steel and have a minimum

diameter of .625".

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 a class 25 iron, with pump out vanes on the back shroud to keep debris away from the seal area. It shall be threaded to

the motor shaft.

9.01 CONTROLS

All single phase units can be supplied with CSA and UL approved automatic wide angle tilt float switches. The switches shall be equipped with

piggy back style plug that allows the pump to be operated manually without the removal of the pump in the event that a switch becomes

inoperable. Manual Pumps are operable by means of a pump control panel.

10.01 PAINT