543475 1 Liberty XLE50 Explosion Proof Pump Brochure

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XLE50-Series
1/2 hp

XLE70-Series
3/4 hp

Explosion-proof
Submersible
Sewage Pumps
for Hazardous
Locations
Class 1, Division 1
Groups C & D
Class 1, Zone 1 and
Group IIA and IIB
Features:
• Dual 2" or 3" discharge
• 2" solids-handling
• Heavy cast iron construction
• Dual shaft seals
• Seal fail sensor
• 2 vane semi-open cast iron impeller
(bronze optional)
• 416 stainless steel rotor shaft
• 1-1/2" threads provided for optional
conduit connection
For use with ISS-Series and
ISD-Series intrinsically safe panels.
Consult factory for proper panel sizing.

XLE50-SERIES XLE70-SERIES
1/2 hp
3/4 hp
TECHNICAL SPECIFICATIONS
				
MODELS	
HP	
VOLTS	

		
FULL LOAD	 CAPACITOR	
HZ 	 PHASE	
AMPS	
KIT	

XLE51M-2	 1/2	
115	
XLE52M-2	1/2	 208/230	
XLE53M-2	1/2	 208/231	
XLE54M-2	1/2	 440-480	
XLE55M-2	1/2	 575	
XLE71M-2	3/4	 115	
XLE72M-2	3/4	 208/230	
XLE73M-2	3/4	 208/231	
XLE74M-2	3/4	 440-480	
XLE75M-2	3/4	 575	

60	
60	
60	
60	
60	
60	
60	
60	
60	
60	

1	
1	
3	
3	
3	
1	
1	
3	
3	
3	

10.5	
5.5	
3.5	
1.8	
1.6	
14	
7	
4.5	
2	
1.6	

DISCHARGE 	 CORD	 WEIGHT
SIZE 	
LENGTH	
(Lbs.)

K001514	
K001513	
N/A	
N/A	
N/A	
K001514	
K001513	
N/A	
N/A	
N/A	

2" & 3"	
25'	
96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96
2" & 3"	25'	96

25' cords standard. For 35' cords, add "-3" suffix to the model number. Example: XLE51M-3
Cast iron impeller standard. For bronze impeller add “B” to model number. Example: XLE51BM-2
NOTE: 3-phase models require a control panel with overloads properly sized for the pump. See intrinsically safe panels
ISS-Series (simplex) or ISD-Series (duplex) literature for complete panel information. Consult factory for proper panel sizing.

DIMENSIONAL DATA:

CONSTRUCTION:
Pump and Motor Housing: Heavy cast iron - Class 30
Impeller: Cast Iron (standard), Bronze option available (order “B” models)
Motor: Submersible type, oil-filled, hermetically sealed
Bearings: Ball bearings upper and lower
Thermal Protection: Single-phase models - built into motor windings with
automatic reset. Three-phase models require overloads in the control panel
Capacitor: External run capacitor required in panel (single phase models)
Shaft Seal: Dual seals, silicon carbide with BUNA N elastomers and
stainless steel housing
Seal Fail Sensor: Integral moisture sensing probe (functionality requires
indicator in panel – see ISS or ISD-Series panels)

Maximum Fluid Temperature: 104° F (40° C)

PERFORMANCE CURVE

60Hz. 1725 RPM

Liters Per Minute
0

100

200

300

400

500

600

700

35
10

8

25

XLE70
20

6

15
4

XLE50
10

2

Total Head in Meters

Total Head in Feet

30

5

Meets FM
Standards
Specifications are subject to change without notice.

0
0

20

40

60

80

100

120

140

160

180

200

U.S. Gallons Per Minute

Liberty Pumps • 7000 Apple Tree Avenue • Bergen, New York 14416 • Phone 800-543-2550 Fax (585) 494-1839
www.libertypumps.com
Copyright © Liberty Pumps, Inc. 2015
All rights reserved. LLIT 6737 R10/15
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