Liberty Model LL8 Progressive Cavity Mud Pump from

LIBERTY SERIES - LL8. Progressive Cavity Pump. 2525 Clearbrook Drive Arlington Heights, IL 60005 www.libertyprocess.com. P: 847.640.7867 F: 847.640...

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LIBERTY SERIES - LL8 Progressive Cavity Pump

Liberty LL8 18

38.5

59

100

CALL TOLL FREE 877-742-2878 FOR SALES AND SUPPORT Return to BurtProcess.com

18-100 GPM

0-225

GPM

PSI

Features

Pump Description

• Modular Design • Maintenance Free • Easy Assembly/Disassembly • Simple Pin Joint Design • Non-Pulsating Low Shear • NPT Discharge Connections

The Liberty LL8 Progressive Cavity Pump is an ideal unit for abrasive pumping applications like drilling mud, rendering plants and grease truck applications. Flow rate (11.7 gallons/100 revolutions) 15 up to 100 GPM. The Liberty LL8 Series PC Pump is a standard flanged pump design manufactured with cast iron or 316 stainless steel pump casings and designed in 1, 2, and 3 stages for 75,150 and 225 psi discharge pressures.

Materials Rotor: Tool Steel & Stainless Steel, Chrome-Plated Stator: Buna, Rubber, Viton™, EPDM Motor: 3, 5, 7.5, and 10 hp

All other wetted parts are either carbon steel or 316 stainless steel. Stators are available in many elastomer materials such as buna, natural rubber, epdm and viton. The standard seal design is a set of gland packing with a lantern ring and flush connections. Mechanical seal options for this progressive cavity pump are readily available.

Inlet: 4” Outlet: 4” Bases: Carbon and Stainless Steel

The Liberty unit is a low-cost, maintenance free, dependable drop-in replacement progressive cavity pump. The Liberty LL8 Progressive Cavity Pump parts are direct aftermarket progressive cavity pump part replacements that work with the Moyno™ L8 series, the Tarby™ TL8 series and Continental™ CL8 Series.

Curves Click Links Below 1-Stage 1LL8

2-Stage 2LL8

The pump unit is a modular design with simple hardened pinned joint drive assembly. The LL8 Rotors are typically hardened tool steel or 316 stainless steel with a hard chrome plating for long life in abrasive pumping applications.

3-Stage 3LL8

Contact a Liberty Process representative today for more information about the LL8 Series.

Drawings Click Links Below 1-Stage 1LL8

2-Stage 2LL8

3-Stage 3LL8

P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 1LL8 Progressive Cavity Pump Performance Curves

RPM NPSH REQ’D MIN. HP

55 Durometer

300 500

700

900

.8

2.2

3.7

6.9

10.5

1/2

1-1/2

2

3

5

Data Based on water @70°F

120

6

100

5

80

4

60

3

40

2

20

1

0

0

10

20

30

40

50

60

70

80

HORSEPOWER

CAPACITY (GPM)

70 Durometer

100

0

DIFFERENTIAL PRESSURE (PSI)

1 Stage Pump P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 2LL8 Progressive Cavity Pump Performance Curves

RPM NPSH REQ’D MIN. HP

55 Durometer

300 500

700

900

.8

2.2

3.7

6.9

10.5

1-1/2

3

5

7-1/2 7-1/2

Data Based on water @70°F

120

12

100

10

80

8

60

6

40

4

20

2

0

0

20

40

60

80

100

20

140

160

HORSEPOWER

CAPACITY (GPM)

70 Durometer

100

0

DIFFERENTIAL PRESSURE (PSI)

2 Stage Pump P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 3LL8 Progressive Cavity Pump Performance Curves

RPM

300 500

700

900

NPSH REQ’D

.8

2.2

3.7

6.9

10.5

MIN. HP

2

5

7-1/2

10

10

55 Durometer

Data Based on water @70°F

120

24

100

20

80

16

60

12

40

8

20

4

0

0

50

100

150

200

250

300

350

400

HORSEPOWER

CAPACITY (GPM)

70 Durometer

100

0

DIFFERENTIAL PRESSURE (PSI)

3 Stage Pump P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 1LL8 Progressive Cavity Pump Dimensional Drawings

MIN. REQUIRED TO DISASSEMBLE PUMP 18.37”

46.31” SUCTION

20.50”

4.00”

DISCHARGE 4.00“ 1.37”

14.00” 8.00”

4.50” 4.50” 10.06”

27.00”

0.88” Dia.

11.50”

Net weight ≈ lbs.

ALL DIMN: Inches

1 Stage Pump

303

P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 2LL8 Progressive Cavity Pump Dimensional Drawings

MIN. REQUIRED TO DISASSEMBLE PUMP 18.37”

58.75” SUCTION

32.94”

4.00”

DISCHARGE 4.00“ 1.37”

14.50” 8.00”

4.50” 4.50” 17.50”

32.00”

0.88” Dia.

11.50”

Net weight ≈ lbs.

ALL DIMN: Inches

2 Stage Pump

322

P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

LIBERTY SERIES - 3LL8 Progressive Cavity Pump Dimensional Drawings

MIN. REQUIRED TO DISASSEMBLE PUMP 18.37”

71.12” SUCTION

45.31”

4.00”

DISCHARGE 4.00“ 1.37”

14.00” 8.00”

4.50” 4.50”

24.00” 12.88”

49.00”

0.88” Dia.

11.50”

Net weight ≈ lbs.

ALL DIMN: Inches

3 Stage Pump

372

P: 847.640.7867 F: 847.640.7855 2525 Clearbrook Drive Arlington Heights, IL 60005

www.libertyprocess.com

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