Pump Specifications

LSG200-E SERIES (SINGLE STAGE)

LSGX200-E SERIES (TWO STAGE)
Omnivore ® 1.5kW Submersible Grinder Pumps

LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
LSG/LSGX 200-E Series Dimensional data

LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
 LSG/LSGX 200-E Series Electrical data

FULL LOCKED THERMAL STATOR CORD

k H
MODEL VOLTAGE PHASE SF LOAD ROTOR OVERLOAD WINDING LENGTH DISCHARGE
W p
AMPS AMPS TEMP CLASS M
1-1/4” NPT
LSG202M-3E 1.5 2 230 1 1.0 9.4 48 135˚C 275°F B 10
+ FLANGE
1-1/4” NPT
LSG203M-3E 1.5 2 230 3 1.0 6.0 68 N/A B 10
+ FLANGE
1-1/4” NPT
LSG204M-3E 1.5 2 400 3 1.0 3.4 32 N/A B 10
+ FLANGE
1-1/4” NPT
LSGX202M-3E 1.5 2 230 1 1.0 11.4 48 135˚C 275°F B 10
+ FLANGE
1-1/4” NPT
LSGX203M-3E 1.5 2 230 3 1.0 7.0 68 N/A B 10
+ FLANGE
1-1/4” NPT
LSGX204M-3E 1.5 2 400 3 1.0 4.0 32 N/A B 10
+ FLANGE
Notes:
1. All LSG/LSGX200M-3E pumps are manual models and have 10 m bare lead power cords.
2. The voltages of 230 and 400 mentioned above are EN Harmonized voltages and cover system voltages
220-240 and 380-415, respectively.

LSG/LSGX 200-E Series Technical Data

IMPELLER 300 SERIES S.S.

PROTECTIVE COATING POWDER COAT
MAX LIQUID TEMP 40˚C 104˚F
MAX STATOR TEMP 140˚C
THERMAL OVERLOAD 135˚C / 275˚F (single phase only)
POWER CORD TYPE H07RN-F All Omnivore® products will ship in
MOTOR HOUSING CLASS 25 CAST IRON a carton not exceeding 58.5 cm tall,
or a square base pattern of 32.5 cm.
VOLUTE CLASS 25 CAST IRON
All Omnivore® products will not
SHAFT 300 SERIES S.S. exceed a carton weight of 40.5 kg.
HARDWARE STAINLESS
ORINGS BUNA N
MIN SUBMERSION 1 METER
MAX SUBMERSION 7 METERS
MECHANICAL SEAL UNITIZED SILICON CARBIDE
MIN BEARING LIFE 50,000 HRS

LSG/LSGX 200-E 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 Series LSG200-
E and LSGX200-E single phase or 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 1.5 kW _____ volts _______ phase 50 Hz. 2875 RPM. The unit shall
3
produce ______m /hr at ______ meters 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 31,8 mm (1.25") in diameter. The
LSG series single stage submersible pump shall have a shut-off head of 26 meters and a maximum flow of 10
3
m /hr at 3 meters of total dynamic head. The LSGX series two stage submersible pump shall
LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
 3
have a shut-off head of 46 meters and a maximum flow of 8.5 m /hr at 3 meters of total dynamic head.

3.01 CONSTRUCTION:

Each centrifugal grinder pump shall be equal to the certified Series LSG Grinder pumps as manufactured
by Liberty Pumps, Bergen NY. The castings shall be constructed of class 25 grey 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 using a Buna-N rubber. All
fasteners exposed to the liquid shall be stainless steel. The motor shall be protected on the top side with an IP68
rated cord entry system, 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 lip seal molded in elastomeric rubber.
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. Machined pump components shall be concentric and parallel, thereby equalizing the
pressures and forces experienced during operation, which will extend the service life of seals, bearings and
cutting implements. 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 stainless steel handle having a nitrile grip.

4.01 ELECTRICAL POWER CORD

The submersible pump shall be supplied with 10 meters of multi-conductor power cord. It shall be cord type
H07RN-F 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 IEC 60335-1. The power cable enters the motor housing directly
by means of a water tight compression fitting, with a cast iron cord plate, sealed to the housing by a Buna-N
gasket. The power cord termination internal to the pump has been epoxied, to eliminate the ability of water to
enter the pump housing through the cord, by means of wicking through a damaged cord insulation jacket. The
power cord entry system shall carry an IP68 degree of protection.

5.01 MOTORS
All motors shall be class B insulated NEMA B design, oil cooled, rated for continuous duty. Single phase motors
shall be capacitor start / capacitor run, controlled by an integral solid state starting circuit to switch the start
winding off. The capacitors and solid state switch shall be mounted to the motor, internal to the pump housing.
Single phase motors shall include an integral thermal overload device that prevents a maximum load winding
temperature from exceeding 135 °C. Three phase motors shall be used with an appropriate controller with
integral overload protection. Since air filled motors are not capable of dissipating heat they shall not be
considered equal.

6.01 BEARINGS AND SHAFT

The upper bearing shall be a radial type, single ball / race bearing. The lower bearing shall be a thrust type,
angular contact heavy duty ball / race bearing, designed to handle the axial thrust loads occurring while operating
the grinder pump. Both bearings shall be open type, exposing the balls and races for permanent lubrication by
the oil internal to the motor housing. The bearing system shall be designed to enable proper cutter alignment
from shut off head to maximum load at 3 m of TDH. The motor shaft shall be made of 300 or 400 series stainless
steel and have a minimum diameter of 17,0 mm (.670").

7.01 SEALS
The pump shall have a dual seal arrangement consisting of a lower and upper seal to protect the motor from the
pumping liquid. The lower seal shall be an elastomeric rubber molded lip seal, designed to exclude foreign
material away from the main upper seal. The upper seal shall be a unitized silicon carbide hard face seal with
stainless steel housings and spring equal to Crane Type T-6a. The motor plate / housing interface shall be sealed
with a Buna-N O-ring.

8.01 IMPELLER
The impeller shall be an investment cast stainless steel impeller, with pump out vanes on the back shroud to
keep debris away from the seal area. The impeller shall be keyed and bolted to the motor shaft.

LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
9.01 CUTTER MECHANISM
The cutter and plate shall consist of 440 stainless steel with a Rockwell C hardness of 55-60. The stationary
cutter plate shall have specially designed orifices through it, which enable the slurry to flow through the pump
housing at an equalized pressure and velocity. The stationary cutter shall consist of V shapes to maximize cutting
action and arc shape exclusion slots to outwardly eject debris from under the rotary cutter. The rotary cutter shall
have (4) blades and be designed with a recessed area behind the cutting edge to prevent the accumulation and
binding of any material between rotary cutter and the stationary cutter. The cutting system must incorporate close
tolerances for optimum performance. Ring or radial cutters, or those that grind on the outside circumference of
shall not be considered equal.

10.01 CONTROLS
All LSG/LSGX200-E series pumps must be operated by means of control panel. Control panel components must
comply with national and local electrical codes, and be set using the pump electrical ratings to function properly.

11.01 PROTECTIVE COATING

The exterior of the casting shall be protected with Powder Coat Epoxy.

12.01 SUPPORT
The pump shall have cast iron support legs, enabling it to be a free standing unit. The legs will be high enough to
allow solids and long stringy debris to enter the cutter assembly.

13.01 FACTORY ASSEMBLED TANK SYSTEMS WITH GUIDE RAIL AND QUICK DISCONNECT
DISCHARGE
______ Guide factory mounted rail system with pump suspended by means of bolt on quick disconnect which is
sealed by means of Buna-N grommets. The disconnect system shall have an internal ball check. The Discharge
piping shall be schedule 80 PVC and furnished with a PVC shut-off ball valve. The Tank shall be wound
fiberglass or roto-molded plastic. A cast iron inlet hub shall be provided with the fiberglass systems.
______ Stainless steel Guide Rail
______ Zinc plated steel Guide Rail
______ mm diameter of basin size
______ mm height of basin size
______ mm distance from top of tank to discharge pipe outlet
______ Fiberglass cover
______ Structural foam polymer cover
______ Steel cover
______ Simplex System with Outdoor panel and alarm
______ Duplex System with Outdoor panel and alarm
______ Separate Outdoor Alarm
______ Remote Outdoor Alarm

14.01 TESTING
The pump shall have an earth continuity check and the motor chamber shall be submitted to an electrical strength
test, to test for electrical integrity, moisture content and insulation defects. The motor and volute housing shall be
pressurized, and an air leak decay test is performed to ensure integrity of the motor housing. The pump shall be
run where, the voltage and current is monitored, and checked for noise or other malfunction.

15.01 QUALITY CONTROL

The pump shall be manufactured in an ISO 9001 certified Facility.

16.01 WARRANTY
Standard limited warranty shall be 3 years.

LSG200-E R1/26/2016 ©Copyright 2016 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.