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Liberty Series Progressive Cavity Pumps and Pump Parts

About the Liberty Series of Progressive Cavity Pumps

Liberty Series Icon The Liberty Series of Progressive Cavity Pumps and Aftermarket Pump Parts is our premium pump series which is designed as replacements for the popular L-Frame Series of Progressive Cavity Pumps. All Liberty Progressive Cavity Pumps are available for immediate shipment from our facility near Chicago, IL. In many cases, we can ship the same day you place your order.

The series is offered in 9 different flow-sizes with variable flow ranges from a fraction of a gallon up to 250 GPM with pumps available in 1, 2 and 3 stages for a range of discharge pressures of 75, 150, and 225 PSI.

From drilling mud pumping and transfer to ground water remediation applications to sludge and polymer feed and grouting and heavy abrasives in suspension, the Liberty LL Series pumps them all effortlessly.

The series also represents the best value in aftermarket pc pump parts for your currently existing *Moyno®, *Tarby®, *Continental®, *Roper®, and *Monoflo® brand pumps. Our replacement progressive cavity pump parts are direct drop in dimensionally interchangeable replacement with their OEM counterparts.

The pumps have standard ANSI flange suction connections and NPT threaded discharge connections. Optional ANSI flanges are also available on the discharge connection.

We also offer this pump with many different drive package options, shaft seal options and all the accessories needed for your pumping applications. Please contact one of our application engineers today for a complete technical offer.

Contact a Liberty Process representative today for more information.

Liberty Series - Technical Data

Pump Features


LL2 Polymer Feed PC Pump

Liberty LL2 progressive cavity pump The LL2 Progressive Cavity Pump is rated for .260 gallons per minute per 100 RPM. It is available in one, two, and three stage designs.

  • RANGE .9 - 2 GPM
  • PRESSURE 0 - 180 PSI

LL3 Adhesives and Liquids PC Pump

Liberty LL3 progressive cavity pump The LL3 Progressive Cavity Pump is rated for 0.860 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 2.7 - 10 GPM
  • PRESSURE 0 - 225 PSI
  • High Viscosity Pumping Applications
  • Abrasive Liquids & Solutions
  • Low-flow Rate

LL4 Grouting and Heavy Abrasives Slurry PC Pump

Liberty LL4 progressive cavity pump The LL4 Progressive Cavity Pump is rated for 2.02 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 5.5 - 24 GPM
  • PRESSURE 0 - 225 PSI
  • Abrasive Liquids & Solutions
  • Grouting & Slurry Mixtures
  • Sampling/Dosing Applications

LL6 Hydraulic Fracking & Drilling PC Pump

Liberty LL6 progressive cavity pump The LL6 Progressive Cavity Pump is rated for 5.20 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 21 - 47 GPM
  • PRESSURE 0 - 225 PSI
  • Abrasive Pump Applications
  • Drilling Mud Transfer
  • Fracking & Oil Discovery Applications

LL8 Drilling Mud and Slurry PC Pump

Liberty LL8 progressive cavity pump The LL8 Progressive Cavity Pump is rated for 11.7 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 35 - 100 GPM
  • PRESSURE 0 - 225 PSI
  • Drilling Mud and Slurry
  • Pulp & Mash Pumping
  • Abrasive Drilling Mud Applications

LL10 Thickened Flow Mediums and Coatings PC Pump

Liberty LL10 progressive cavity pump The LL10 Progressive Cavity Pump is rated for 18.8 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 58 - 115 GPM
  • PRESSURE 0 - 225 PSI
  • Thickened Pump Applications
  • Thick Gypsum Compound Pumping
  • Paper Coating Pump Applications

LL10H Wastewater Treatment Process PC Pump

Liberty LL10H progressive cavity pump The LL10H Progressive Cavity Pump is rated for 27.7 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 100 - 168 GPM
  • PRESSURE 0 - 225 PSI
  • RAS and TWAS Pump Applications
  • Industrial Wastewater & Effluent Flow Pumping
  • Sewage Pump Applications

LL12 Grease & Scum Transfer PC Pump

Liberty LL12 progressive cavity pump The LL12 Progressive Cavity Pump is rated for 43.5 gallons per minute per 100 RPM. It is available in one, two, and three stage designs

  • RANGE 85 - 261 GPM
  • PRESSURE 0 - 225 PSI

LL12H High Viscosity Fluids PC Pump

Liberty LL12H progressive cavity pumpThe LL12H Progressive Cavity Pump is rated for 65.2 gallons per minute per 100 RPM. It is available in one, two, and three stage designs.

  • RANGE 23 - 391 GPM
  • PRESSURE 0 - 150 PSI
  • High-Viscosity Fluid Pumping
  • Thickenend Grease Pumping
  • Scum & Slurry Mixture Applications

*Liberty Process Equipment, Inc. is not affiliated with nor distributor for Seepex®, Allweiler®, Moyno®, Tarby®, Netzsch®, or Continental Inc.® All referenced product names, brands, models, or part numbers is solely for identification purposes. Seepex® is a registered trademark of Seepex®. Moyno® and Tarby® are registered trademarks of Robins and Myers® and NOV®, Netzsch® Incorporated is a registered trademark of the Netzsch® Group, Allweiler® is a registered trademark of Colfax® Corporations Continental® Pumps is a Trademark of Continental® Ultra Pumps.