Liberty XLE53M-3, XLE50 Series, Explosion Proof Sewage Pump, 1/2 HP, 208-230 Volts, 3 Phase, 2" NPT Discharge with 3" NPT Flange, 172 GPM Max, 23 ft Max Head, 35 ft Cord, Manual
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FEATURES
Liberty XLE50 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.
Brand | Liberty |
Mfg. Number | XLE53M-3 |
Series | XLE50 |
Product Type | Explosion proof sewage pump |
Application | Sewage; hazardous locations |
Operation | Manual |
Horsepower | 1/2 HP |
Voltage | 208-230 Volts |
Phase | 3 |
Frequency | 60 Hz |
Speed | 1725 RPM |
Pump Casing | Cast iron Class 30 |
Maximum Flow | 172 GPM |
Maximum Total Head | 23 ft |
Discharge Connection | 2" NPT Discharge with 3" NPT Flange |
Maximum Current | 3.5 Amps |
Maximum Fluid Temperature | 104°F |
Impeller Design | 2 vane; semi-open |
Power Cord Length | 35 ft |
Impeller Material | Cast Iron |
Overload Protection | Control 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:
- Ignitable concentrations of flammable gases or vapors may exist under normal operating conditions.
- Ignitable concentrations of these gases may exist frequently due to repair/maintenance operations or due to leakage.
- 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:
- Ignitable concentrations of flammable gases or vapors are likely to exist under normal operating conditions.
- Ignitable concentrations of flammable gases or vapors may exist frequently due to repair/maintenance operations or due to leakage.
- 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.
- 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 |
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*Note: Picture is illustrative and may not reflect the actual product.*