liberty series - ll4 · 2021. 1. 13. · liberty series - ll4 progressive cavity pump 2525...

LIBERTY SERIES - LL4Progressive Cavity Pump

2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

P: 847.640.7867 F: 847.640.7855

Pump DescriptionThe Liberty LL4 Progressive Cavity Pump is an ideal low-costingprogressive cavity pump for abrasive and wearing applications likegrouting and other abrasive slurry mixtures. The LL4 Series PCPump is a standard flanged pump design manufactured with castiron or 316 stainless steel casings and designed in 1, 2, and 3 stages for 75, 150, and 225 psi discharge pressures pumping from0-24 GPM. (2.02 Gallons per 100 revolutions)

The pump units modular design with simple hardened pinned jointdrive assembly ensures ease of use with increased durability. TheLL4 Series Progressive Cavity Pump Rotors are typically tool steelor 316 stainless steel with a hard chrome plating. All other wettedparts are either carbon steel or 316 stainless steel. Stators areavailable in many elastomer materials such as buna, natural rubber, epdm and viton depending upon application.

The standard seal design is a set of packing rope; however,mechanical seal assembly retrofits are readily available. The Liberty LL4 Progressive Cavity Pump parts are direct aftermarketreplacements that work with the Moyno™ L4 Series, Tarby™ TL4Series and Continental™ CL4 Series.*

Please contact Liberty process Equipment Today for more information on the LL4 Liberty Series of Progressive Cavity Pumps.

Contact a Liberty Process representative today for moreinformation about the LL4 Series.Curves

Click Links Below

Features

MaterialsRotor:

Stator:

Motor:

Inlet:

Tool Steel & Stainless Steel, Chrome-Plated

Buna, Rubber, Viton™, EPDM

1/2, 3/4, 1, 1.5, and 2 hp

2-1/2”

Outlet: 2”

Bases: Carbon and Stainless Steel

• Modular Design• Maintenance Free• Easy Assembly/Disassembly• Simple Pin-Joint Connection• Non-Pulsating Low Shear• NPT Discharge Connection• Can Be Run In Either Direction

1-Stage1LL4

1-Stage1LL4

2-Stage2LL4

2-Stage2LL4

3-Stage3LL4

3-Stage3LL4

DrawingsClick Links Below

2 7.5 13 24

G P M

Liberty LL4 2-24

0-225GPM

PSI

http://www.libertyprocess.com/

http://www.libertyprocess.com/liberty_series_ll4_drive_end.html




http://www.libertyprocess.com/liberty_series_ll10h_drive_end.html





http://www.libertyprocess.com/liberty_series_ll12h_drive_end.html

24

22

20

18

16

14

12

10

8

6

4

2

0

2.4

2.2

2.0

1.8

1.6

1.4

1.2

1.0

.8

.6

.4

.2

0

CA

PAC

ITY

(GP

M)

0 10 20 30 40 50 60 70 80

DIFFERENTIAL PRESSURE (PSI)

HO

RS

EP

OW

ER

70 Durometer 55 DurometerData Based on water @70°F

RPM

NPSHREQ’D

MIN.HP

200

.9

1/3

400

1.7

1/2

600

2.6

1/2

800

3.4

3/4

1000

4.8

1

1200

6.7

1

LIBERTY SERIES - 1LL4Progressive Cavity Pump

Performance Curves

Page 1



P: 847.640.7867 F: 847.640.7855

1 Stage Pump



24

20

18

16

14

12

8

6

4

0

3.0

2.5

2.0

1.5

1

.5

0

CA

PAC

ITY

(GP

M)

0 20 40 60 80 100 120 140 160


HO

RS

EP

OW

ER


RPM

NPSHREQ’D

MIN.HP

200

.9

1/3

400

1.7

1/2

600

2.6

3/4

800

3.4

1

1000

4.8

1-1/2

1200

6.7

1-1/2


Performance Curves



P: 847.640.7867 F: 847.640.7855

2 Stage Pump




Performance Curves



P: 847.640.7867 F: 847.640.7855

24

20

16

12

8

4

0

6

5

4

3

2

1

0

CA

PAC

ITY

(GP

M)

0 50 100 150 200 250 300 350 400


HO

RS

EP

OW

ER


RPM

NPSHREQ’D

MIN.HP

200

.9

1/2

400

1.7

3/4

600

2.6

1

800

3.4

1-1/2

1000

4.8

2

1200

6.7

2

3 Stage Pump




Dimensional Drawings

≈ lbs.

Net weight



P: 847.640.7867 F: 847.640.78551 Stage Pump

85 ALL DIMN: Inches

7.62” 15.75”0.56” Dia.

2.75” 2.75”

7.00”

5.50”

9.88”

0.94”

13.50”

11.37” 30.37”

SUCTION2.50”

DISCHARGE2.00“

MIN. REQUIRED TODISASSEMBLE PUMP





≈ lbs.

Net weight



P: 847.640.7867 F: 847.640.78552 Stage Pump

91 ALL DIMN: Inches

8.44” 22.00”0.56” Dia.

2.75” 2.75”

7.00”

5.50”

9.88”

0.94”

20.56”

11.37” 37.44”

SUCTION2.50”

DISCHARGE2.00“






≈ lbs.

Net weight



P: 847.640.7867 F: 847.640.78553 Stage Pump

97 ALL DIMN: Inches

14.75” 22.75”0.56” Dia.

2.75” 2.75”

7.00”

5.50”

9.88”

0.94”

27.62”

11.37” 44.50”

SUCTION2.50”

DISCHARGE2.00“




liberty series - ll4 · 2021. 1. 13. · liberty series - ll4 progressive cavity pump 2525...

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