1272 3 Liberty Elv280 Curves 1 User Manual
510 3 Liberty Elv280Hv Curves 510_3_Liberty ELV280HV Curves
516 3 Liberty Elv290 Curves 516_3_Liberty ELV290 Curves
540 3 Liberty Elv290Hv Curves 540_3_Liberty ELV290HV Curves
717 3 Liberty Ev280Hv Curves 717_3_Liberty EV280HV Curves
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User Manual: Pump 1272 3 Liberty Elv280 Curves
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Pump Specifications ELV Series Submersible Sump Pump with OilTector Control ELV250 1/3 hp ELV280 1/2 hp ELV290 3/4 hp ELV_ P1 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. ELV280 Dimensional Data ELV_ P2 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. ELV250 Dimensional Data ELV_ P3 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. ELV290 Dimensional Data ELV290 SERIES DIMENSIONAL 2011 ELV_ P4 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. ELV-Series Electrical Data MODEL HP VOLTAGE PHASE FULL LOAD AMPS THERMAL OVERLOAD TEMP STATOR WINDING CLASS CORD LENGTH FT DISCHARGE ELV290 3/4 115 1 10.4 24 120˚C/ 248˚F B 25 1 1/2 ELV290HV 3/4 208-230 1 5.3 13 105˚C/ 221˚F B 25 1 1/2 ELV280 1/2 115 1 8.5 23 105˚C/ 221˚F B 25 1 1/2 ELV280HV 1/2 208-230 1 4.6 12.5 105˚C/ 221˚F B 25 1 1/2 ELV250 1/3 115 1 5.2 8 105˚C/ 221˚F B 25 1 1/2 LOCKED ROTOR AMPS ELV-Series Technical Data IMPELLER VORTEX ENGINEERED POLYMER SOLIDS HANDLING SIZE ELV250 ½” ELV280, ELV280HV, ELV290, ELV290HV ¾” PAINT POWDER COAT MAX LIQUID TEMP 60˚C/ 140˚F MAX STATOR TEMP CLASS B 130˚C/ 266˚F THERMAL OVERLOAD ELV250, ELV280, ELV280HV, ELV290HV 105˚C/ 221˚F ELV290 120˚C/ 248˚F MOTOR HOUSING/ VOLUTE CLASS 25 CAST IRON SHAFT STAINLESS HARDWARE STAINLESS ORINGS BUNA N SHAFT SEAL ENGINEERED DOUBLE LIP WITH STAINLESS STEEL SPRINGS ELV250 ELV280 & ELV280HV ELV290 & ELV290HV ELV250 23 LBS ELV280, ELV280HV, ELV290, ELV290HV MIN. SUMP SIZE ELV_ P5 R1/24/2012 UNITIZED CERAMIC CARBON 30 LBS Ø18” X 30” ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. AUTOMATIC YES W/ CONTROL YES W/ CONTROL YES W/ CONTROL YES W/ CONTROL YES W/ CONTROL ELV-Series 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 ELV Series single phase 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 for ____hp, _____ volts, single phase, 60 Hz, & 3450 RPM. The unit shall produce _____G.P.M. at ______ feet of total dynamic head. The submersible pump shall be capable of handling water with _____ solid handling capability. The submersible pump shall have a shut-off head of ____ feet and a maximum flow of _____ GPM @ 5 feet of total dynamic head. The pump shall be controlled with: The manual pump is connected to a control which has the ability to prevent oil from being pumped from the vault. This same control unit will activate an alarm when an oil “film” is detected or when a high water condition exits. The system will continue to monitor and remove water from the vault even if an oil condition is detected. 3.01 CONSTRUCTION: Each centrifugal sump pump shall be equal to the Certified ELV-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 or engineered double lip seal with stainless steel springs. The pump shall be furnished with stainless steel handle. 4.01 ELECTRICAL POWER CORD The submersible pump shall be supplied with a 25 feet of multiconductor power cord. It shall be cord type YELLOW UL 16-3 SJEOOW 300V 105°C, 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. 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. 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. ELV_ P6 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice. 6.01 BEARINGS AND SHAFT An upper sleeve and lower ball bearing shall be required. The lower ball bearing 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. 7.01 SEALS The pump shall have a unitized carbon / ceramic seal with stainless steel housings and spring, or engineered double lip seal with stainless steel springs. The motor plate / housing interface shall be sealed with a Buna-N o-ring. 8.01 IMPELLER The impeller shall be vortex style made of an engineered polymer, 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 The control unit has three probes and a float ball switch. The pump will activate when the middle probe contacts water, and will remain on until the first, longest probe no longer is in contact with water. A high water alarm is activated when third or shortest probe contacts water. The system will ignore a small film of oil, however larger volumes of oil will be detected when the alarm probe does not detect water and the float ball activates. The system will continue to operates, removing water not oil from the vault even when oil has been detected. 10.01 PAINT The exterior of the casting shall be protected with powder coat paint. 11.01 SUPPORT The pump shall have cast iron support legs, enabling it to be a free standing unit. 12.01 SERVICEABILITY Components required for the repair of the pump shall be shipped within a period of 24 hours. 13.01 TESTING The pump shall have a ground continuity check and the motor chamber shall be Hi-potted 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, voltage current monitored, and the tester checks for noise or other malfunction. 14.01 QUALITY CONTROL The pump shall be manufactured in an ISO 9001 certified Facility. 15.01 WARRANTY Standard limited warranty shall be 3 years. ELV_ P7 R1/24/2012 ©Copyright 2012 Liberty Pumps Inc. All rights reserved. Specifications subject to change without notice.
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