Liberty XLE74M-3, XLE70 Series, Explosion Proof Sewage Pump, 3/4 HP, 440-480 Volts, 3 Phase, 2" NPT Discharge with 3" NPT Flange, 200 GPM Max, 33 ft Max Head, 35 ft Cord, Manual

SKU #: XLE74M-3
Brand: Liberty
Available For Order! ((Usually Ships 3-5 Days))This product  is direct shipped from the manufacturer. The estimated shipping time may vary depending on the manufacturers stock, backlog or delay. If you would like to confirm the manufacturers lead time for this item, call our Pump Products sales team at 800-429-0800 between the hours of 7:30 A.M. - 4:30 P.M. E.S.T.
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FEATURES

Liberty XLE70 Explosion Proof Submersible Sewage Pump

This pump is to be used for handling septic tank effluent, sewage, and drain (storm) water.  The XLE50 is CSA listed, UL accepted, and tested to FM standards for hazardous locations Class 1, Division 1, Group C and D. Do not use in other hazardous locations. Pump has a 2 inch maximum solid handling capability.

Features

  • Class 1, Division 1 Groups C & D, Class 1, Zone 1 and Group IIA and IIB
  • Dual 2" or 3" discharge
  • 2" solids-handling
  • Heavy cast iron construction
  • Dual shaft seals
  • Seal fail sensor
  • 2 vane semi-open impeller
  • 416 stainless steel rotor shaft
  • 1-1/2" threads provided for optional conduit connection

Control Panel Options

Below are Liberty control panels that can be used with this pump.

BrandLiberty
Mfg. NumberXLE74M-3
SeriesXLE70
Product TypeExplosion proof sewage pump
ApplicationSewage; hazardous locations
OperationManual
Horsepower3/4 HP
Voltage440-480 Volts
Phase3
Frequency60 Hz
Speed1725 RPM
Pump CasingCast iron Class 30
Maximum Flow200 GPM
Maximum Total Head33 ft
Discharge Connection2" NPT Discharge with 3" NPT Flange
Maximum Current2 Amps
Maximum Fluid Temperature104°F
Impeller Design 2 vane; semi-open
Power Cord Length35 ft
Impeller MaterialCast Iron
Overload ProtectionControl panel required


The XLE series from Liberty are submersible, explosion-proof sewage pumps designed to operate in hazardous locations. As the name suggests, these pumps are built to withstand explosions, which in this case simply means a sudden reaction involving physical or chemical decay along with an increase in temperature, pressure or both. Explosions occur when conditions in the air include a flammable substance, an oxidizer and a source of ignition. All Liberty XLE pumps are built with a Class 30 heavy cast iron body. Impellers can come in cast iron or bronze. Each pump model features dual shaft seals and a probe type seal fail sensor that detects if moisture penetrates the seal cavity. The seal fail sensor is dependent on and used in conjunction with ISS-Series simplex and ISD-Series duplex intrinsically safe panels. To size the panels, be sure that the amp range of the panels matches the full load amp range of the pump. The panels should be installed away from the hazardous location - be sure to have a qualified electrician handle the installation. For more information on the Liberty XLE family of sewage pumps, visit pumpproducts.com or call us with any questions at 1-800-429-0800. A Brief Explanation of Hazardous Locations Hazardous locations are defined by the National Fire Protection Association (NFPA) and the National Electric Code (NEC) and are subdivided into various classes, divisions, groups and zones. A 2017 edition of the NFPA 70 can be found at the organization’s official website. Both the XLE50 and XLE70 series pumps have the same hazardous location designations. Class 1, Division 1 Groups C and DClass I locations are those in which the air contains a high enough concentration of flammable gases or vapors that could produce an explosive situation. To be classified as “Class 1, Division 1” one of the following three conditions must be met:

  1. Ignitable concentrations of flammable gases or vapors may exist under normal operating conditions.
  2. Ignitable concentrations of these gases may exist frequently due to repair/maintenance operations or due to leakage.
  3. The breakdown of equipment or processes might release ignitable concentrations of these flammable gases and could also cause the simultaneous failure of electrical equipment.

Groups C and D are specific subdivisions in which the pumps can operate. The subdivision classification is based on the flammable material in the air, the maximum experimental safe gap (MESG) and the minimum igniting current ratio (MIC). The MESG is a measurement expressed in millimeters of how easily a gas flame will pass through a gap bordered by heat-absorbing metal. The MIC ratio is the the ratio derived by taking the minimum current required from an inductive spark discharge to ignite the most easily ignitable mixture of a gas or vapor and dividing that number by the minimum current required from an inductive spark discharge to ignite methane under the same test conditions. Group C: Flammable gas, flammable liquid-produced vapor or combustible liquid-produced vapor mixed with air that may burn or explode, having either a maximum experimental safe gap (MESG) value greater than or equal to 0.45mm or less than 0.75mm, or minimum igniting current ratio (MIC ratio) greater than 0.40 and less than or equal to 0.80. Example: Ethylene. Group D: Flammable gas, flammable liquid-produced vapor or combustible liquid-produced vapor mixed with air that may burn or explode, having either a maximum experimental safe gap (MESG) value greater than or equal to 0.75mm, or minimum igniting current ratio (MIC ratio) greater than 0.80. Example: Propane. Class 1, Zone 1 Groups IIA and IIBClass 1, Zone 1 locations are designated when the location meets the criteria for one of the following:

  1. Ignitable concentrations of flammable gases or vapors are likely to exist under normal operating conditions.
  2. Ignitable concentrations of flammable gases or vapors may exist frequently due to repair/maintenance operations or due to leakage.
  3. Equipment is operated or processes are carried out in such a way that equipment breakdown or faulty operations could result in the release of ignitable concentrations of flammable gases or vapors and also cause the simultaneous failure of electrical equipment in a manner that would case the equipment to become a source of ignition.
  4. A location adjacent to a Class 1, Zone 0 location (where gases are present continuously or for long periods) from which ignitable concentrations of vapors could be communicated. If the communication is prevented by positive-pressure ventilation from a clean air source and safeguards against ventilation failure are in place, such a location would not qualify as a Class 1, Zone 1 location.

Group II is another subdivision classification based on the flammable material in the air, the maximum experimental safe gap (MESG) and the minimum igniting current ratio (MIC). Group IIA Flammable gases or vapors: Propane, acetone, benzene, butane, methane, petrol, paint solvents MESG: >0.9 mm MIC: >0.8 Group IIB Flammable gases or vapors: Ethylene, propylene oxide, ethylene oxide, butadiene, cyclopropane, ethyl ether. MESG: 0.5mm … 0.9 mm MIC: 0.45… 0.8


Liberty XLE50-Series Model Comparison Chart

Model Number Discharge HP Voltage Phase Max GPM Max Head Cord Impeller Max Temp. Warranty
XLE51BM-2 3" FNPT (2" NPT) 1/2 HP 115 V 1 160 GPM 24 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE51BM-3 3" FNPT (2" NPT) 1/2 HP 115 V 1 160 GPM 24 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE51M-2 3" FNPT (2" NPT) 1/2 HP 115 V 1 160 GPM 24 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE51M-3 3" FNPT(2" NPT) 1/2 HP 115 V 1 160 GPM 24 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE52BM-2 3" FNPT (2" NPT) 1/2 HP 208/230 V 1 160 GPM 24 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE52BM-3 3" FNPT (2" NPT) 1/2 HP 208/230 V 1 160 GPM 24 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE52M-2 3" FNPT (2" NPT) 1/2 HP 208/230 V 1 160 GPM 24 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE52M-3 3" FNPT (2" NPT) 1/2 HP 208/230 V 1 160 GPM 24 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE53BM-2 3" FNPT (2" NPT) 1/2 HP 208/230 V 3 160 GPM 24 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE53BM-3 3" FNPT (2" NPT) 1/2 HP 208/230 V 3 160 GPM 24 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE53M-2 3" FNPT (2" NPT) 1/2 HP 208/230 V 3 160 GPM 24 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE53M-3 3" FNPT (2" NPT) 1/2 HP 208/230 V 3 160 GPM 24 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE54BM-2 3" FNPT (2" NPT) 1/2 HP 440-480 V 3 160 GPM 24 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE54M-2 3" FNPT (2" NPT) 1/2 HP 440-480 V 3 160 GPM 24 ft. TDH 25 ft. Cast Iron 176° F 3 Years
PERFORMANCE CURVES

XLE50-Series Sewage Pump Curve


Liberty XLE70-Series Model Comparison Chart

Model Number Discharge HP Voltage Phase Max GPM Max Head Cord Impeller Max Temp. Warranty
XLE71BM-2 3" FNPT (2" NPT) 3/4 HP 115 V 1 190 GPM 33 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE71BM-3 3" FNPT (2" NPT) 3/4 HP 115 V 1 190 GPM 33 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE71M-2 3" FNPT (2" NPT) 3/4 HP 115 V 1 190 GPM 33 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE71M-3 3" FNPT(2" NPT) 3/4 HP 115 V 1 190 GPM 33 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE72BM-2 3" FNPT (2" NPT) 3/4 HP 208/230 V 1 190 GPM 33 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE72BM-3 3" FNPT (2" NPT) 3/4 HP 208/230 V 1 190 GPM 33 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE72M-2 3" FNPT (2" NPT) 3/4 HP 208/230 V 1 190 GPM 33 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE72M-3 3" FNPT (2" NPT) 3/4 HP 208/230 V 3 190 GPM 33 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE73BM-2 3" FNPT (2" NPT) 3/4 HP 208/230 V 3 190 GPM 33 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE73BM-3 3" FNPT (2" NPT) 3/4 HP 208/230 V 3 190 GPM 33 ft. TDH 35 ft. Bronze 176° F 3 Years
XLE73M-2 3" FNPT (2" NPT) 3/4 HP 208/230 V 3 190 GPM 33 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE73M-3 3" FNPT (2" NPT) 3/4 HP 208/230 V 3 190 GPM 33 ft. TDH 35 ft. Cast Iron 176° F 3 Years
XLE74BM-2 3" FNPT (2" NPT) 3/4 HP 440-480 V 3 190 GPM 33 ft. TDH 25 ft. Bronze 176° F 3 Years
XLE74M-2 3" FNPT (2" NPT) 3/4 HP 440-480 V 3 190 GPM 33 ft. TDH 25 ft. Cast Iron 176° F 3 Years
XLE74M-3 3" FNPT (2" NPT) 3/4 HP 440-480 V 3 190 GPM 33 ft. TDH 35 ft. Cast Iron 176° F 3 Years
PERFORMANCE CURVES

XLE70-Series Explosion Proof Sewage Pump Curve


TECHNICAL BROCHURES
XLE50-Series/XLE70-Series Technical Brochure
 
 
INSTALLATION/OPERATION MANUALS
XLE50-Series/XLE70-Series Installation Manual
PARTS LISTS
 No repair parts list available
 
 
SPECIFICATIONS
XLE50-Series Specifications Sheet
XLE70-Series Specifications Sheet
 
IMAGES
xle50

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*Note: Picture is illustrative and may not reflect the actual product.*