Liberty Pumps Omnivore 2484LSG Mode D'emploi page 7

2484LSG/LSGX-Series Specifications
1.01 GENERAL
The contractor shall provide labor, material, equipment, and incidentals required to provide _________ (QTY) centrifugal grinder pumps as
specified herein. The pump models covered in this specification are LSG/LSGX-Series single/three-phase grinder pumps. The pump
furnished for this application shall be model _________________________________ as manufactured by Liberty Pumps.
2.01 OPERATING CONDITIONS
Each submersible pump shall be rated at 2 hp, __________________ volts, __________ phase, 60 Hz, 3450 RPM. The unit shall produce
__________ GPM at _________ feet of total dynamic head.
The submersible pump shall be capable of handling residential and commercial sewage and grinding it to a fine slurry enabling it to be
pumped over long distances in pipelines as small as 1.25" in diameter. The LSG-Series single-stage submersible pump shall have a
shut-off head of 110 feet and a maximum flow of 50 GPM @ 10 feet of total dynamic head. The LSGX-Series 2-stage submersible pump
shall have a shut-off head of 185 feet and a maximum flow of 38 GPM @ 10 feet of total dynamic head.
3.01 CONSTRUCTION
Each centrifugal grinder pump shall be equal to the
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 dual seal arrangement. The first seal is a double lip seal molded in fluoroelastomer. The
second/main seal shall be 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 by design of angular contact roller races. The pump housing shall
be of the concentric design thereby equalizing the pressure forces inside the housing, which will extend the service life of the seals and
bearings. Additionally there shall be no cutwater in the housing volute in order to discourage the entrapment of flowing debris. The pump
shall be furnished with a stainless steel handle having a nitrile grip.
4.01 ELECTRICAL POWER CORD
The submersible pump shall be supplied with 25 feet of multi-conductor power cord (35 feet for external capacitor models). It shall be
cord type SJOOW (1-phase), SEOOW (3-phase), or SOOW (external capacitor models), 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 watertight 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
All motors shall be oil filled and class B insulated NEMA B design rated for continuous duty. Since air filled motors are not capable of
dissipating heat as effectively, they shall not be considered equal. Single-phase motors shall be capacitor start/capacitor run and have an
integral thermal overload switch in the windings for protecting the motor.
Copyright © Liberty Pumps, Inc. 2019
7000 Apple Tree Avenue Bergen NY 14416
All rights reserved. Specifications subject to change without notice.
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Phone 800-543-2550
certified LSG/LSGX-Series grinder pumps as manufactured by Liberty Pumps,
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Fax 585-494-1839 Email Liberty@LibertyPumps.com
2484LSG_P7 R7/17/2019
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Web www.LibertyPumps.com