Submittal Sheet

The pump shall be controlled with:

______A piggy back style on/off float switch (Single Phase Only).

______A NEMA 4X outdoor simplex control panel with three float switches and a high water alarm.

______A NEMA 1 indoor simplex control panel with three float switches and a high water alarm.

______A NEMA 4X outdoor duplex control panel with three float switches and a high water alarm.

______A NEMA 1 indoor duplex control panel with three float switches and a high water alarm.

______A NEMA 4X outdoor duplex control panel with four float switches and a high water alarm.

______A NEMA 1 indoor duplex control panel with four float switches and a high water alarm.

2.01 CONSTRUCTION:

Each centrifugal grinder pump shall be equal to the certified Series PRG Grinder 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 hard face silicon carbide seal with stainless steel housings and spring.

The upper and lower bearing shall be capable of handling all radial thrust loads. The lower bearing shall have the additional ability to handle

the downward axial thrust produced by the impeller and cutters. The pump shall be furnished with stainless steel handle having a nitrile grip.

3.01 ELECTRICAL POWER CORD

The submersible pump shall be supplied with 10 feet of multi-conductor power cord (25ft for PR0101A-2 models). It shall be cord type SJTW

(1-phase) 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.

4.01 MOTORS

Single phase motors shall be oil filled, capacitor start / capacitor run, class B insulated NEMA B design, rated for continuous duty. At

maximum load the winding temperature shall not exceed 105 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. On all single phase models, the capacitor circuit shall be mounted internally and motors shall have an integral solid state

starting circuit switch for switching the start winding off.

5.01 SEALS

The pump shall have a unitized silicon carbide hard face seal with stainless steel housings and spring equal to Crane Type T-6a.

6.01 IMPELLER

The impeller shall be class 25 gray cast iron with pump out vanes on the back shroud to keep debris away from the seal area. It shall be

keyed and bolted to the motor shaft.