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L-D Series High Pressure Pumps

The L-D Series are double-acting pumps. These pumps are double-acting versions of Maximator’s L-series pumps, which are also known as workhorse series.

  • L-D Series double-acting pumps have stainless steel bodies, and plungers, which have UHMWPE (Ultra High Molecular Weight Polyethylene) seals. Also, these pumps have Viton 2 O-rings (-VE).
  • The pumps from L-60DS to L250DS are available with side inlet.
  • Maximum air drive pressure of these pumps is 145 psi.
  • Minimum air drive pressure of these pumps is 15 psi.
  • ACP must be added to catalog number for pumps with air control version.
  • All L-D pumps are provided with an unregulated pilot port, 1/8"FNPT. This feature is standard, and allows easy on/off pump control using a pilot switch, or a small valve.
  • These pumps produce less pulsation, and deliver more than 50% flow.
  • All L-D pumps have single head style, and are available in 8 pressure ratios.
 

L D Series

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Technical Data

CATALOG
NUMBER

PRESSURE
RATIO

MAXIMUM OUTLET
PRESSURE
(PSI)

DISPL . PER CYCLE (IN.3)
CONNECTIONS
WEIGHT (LBS)
INLET
OUTLET
L10D-VE 1:10 1,450 10.98 1 1/2 48
L15D-VE 1:15 2,175 7.56 1 1/2 48
L25D-VE 1:27 3,915 4.31 1/2 1/2 42
L35D-VE 1:40 5,800 2.98 1/2 1/2 42
L60DS-VE 1:63 9,135 1.92 1/2 1/2 37
L100DS-VE 1:113 15,225 1.07 1/2 1/2 37
L150DS-VE 1:151 21,025 0.80 1/2 9/16–18 37
L250DS-VE 1:265 38,425 0.46 1/2 9/16–18 37
 
Note: All L-D pumps have 1/2" FNPT air drive inlet connection.
Maximum allowable liquid temperature is 140°F.
Air section temperature rating is 0°F - 140°F.
Air pilot connection measures 1/8”, and is essential for operation.
The 9 /16" –18 is a 1/4" O.D. tubing, threaded, and high pressure coned connection.
2 Viton is a trademark of E.I. DuPont de Nemours & Co., Inc.
 

CATALOG
NUMBER

SAMPLE
AIR DRIVE PRESSURE
(PSI)

OUTLET PRESSURE (PSI)
0
500
1000
1500
2000
3000
4000
5000
7500
10000
15000
L10D-VE
60
90
1700
1750
650
1200
                 
L15D-VE
60
90
1150
1200
775
1000

550
               
L25D-VE
60
90
660
680
580
630
385
540
120
220

220
           
L35D-VE
60
90
460
460
420
450
350
415
250
370
140
300

140
         
L60D-VE
60
90
300
300
285
290
260
285
230
270
190
250
100
200

135
       
L100D-VE
60
90
165
165
162
163
155
161
150
160
140
157
120
134
97
132
65
120

69
   
L150D-VE
60
90
125
125
123
124
120
123
116
122
113
121
103
117
90
110
77
103
32
76

50
 
L250D-VE
60
90
70
72
69
71
68
70
67
69
66
68
63
67
62
66
60
66
50
62
38
56
7
38

FLOW RATE IN CUBIC INCHES PER MINUTE.
MAXIMUM AIR CONSUMPTION: 55 SCFM @ 90 PSI (WITH 0 PSI OUTLET).
FLOW RATES SHOWN ARE FOR 1-10 CST FLUIDS.

L-D Series Flow Chart

L10D

L10D Liquid Pumps
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L15D

L15D Liquid Pumps
+

L25D

L25D Liquid Pumps
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L35D

L35D Liquid Pumps
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L100D

L100D Liquid Pumps
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L150D

L150D Liquid Pumps
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L250D

L250D Liquid Pumps
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