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Liberty Process Equipment offers high quality progressive cavity pumps, service and pump parts at an affordable price.   All Liberty pumps and parts come with a full money-back guarantee for 100% satisfaction. 

Edelmann & Associates is proud to offer Liberty Process Equipment progressive cavity pumps and parts in Minnesota, the Dakotas, and western Wisconsin for immediate shipment.  Liberty Process offers same-day shipment from Chicago area with 24-Hour emergency service so you have little or no downtime.

Liberty Process progressive cavity pumps are positive displacement pumps that offer alternatives for difficult pumping applications such as viscous and highly-abrasive media used in many process industries. The design provides pulsation-free, self-priming operation that transfers liquids with solids content (up to 50%) without shearing.

Liberty Process progressive cavity pumps are engineered for transferring fluids with suspended solids content such as sludge and biosolids, as well as thickened abrasives, such as grouts and slurries.  They are often compared to Moyno or Seepex pumps.

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Since 1999, Liberty has been meeting the needs of industry applications such as:

  • Waste Activated Sludge Transfer in Wastewater
  • Return Activated Sludge
  • Sludge and Biosolids Transfer & Processing
  • Oil Transfer and Oil Sludge Pumping
  • TWAS Wastewater and Dewatering Applications
  • Polymer Feed Injection
  • Grouting and Heavy Abrasives Pumping
  • Fracking Pumps
  • Drilling Mud Pumps
  • Municipal Wastewater Treatment
  • High Viscosity and Abrasive Fluid Transfer
  • Open Hopper PC Pumps For Wine Must and Mash Tun

Liberty Process primary pump types are summarized below.

For personalized assistance with sizing and selection, please contact us on the form on the right >>>

Liberty Process Pumps & Parts

Liberty Pump Series

The Liberty Series of Progressive Cavity Pumps and Aftermarket Pump Parts is a premium pump series.  It is designed as replacement for the popular Moyno L-Frame Series of Progressive Cavity Pumps.

The Liberty Series effortlessly handles applications such as drilling mud, transfer to ground water remediation, sludge, polymer feed, grouting and liquids with heavy abrasives in suspension.

Liberty Pump Features

  • Modular Design
  • Maintenance Free
  • Easy Assembly/Disassembly
  • Simple Pin Joint Design
  • NPT Discharge Connections
  • Low Shear
  • Packing or Mechanical Seal
  • Steel or Stainless Steel Base
  • Chrome Plated Tool Steel or Stainless Steel Rotors
  • Buna Nitrile/Viton®/EPDM/Natural Rubber Stators

Liberty Pumps Technical Data

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

Liberty series is offered in 9 different sizes with variable flow rates from a fraction of 1 GPM up to 391 GPM with pumps available in 1, 2 and 3 stages for a range of discharge pressures up to 225 PSI.

  • Capacity: 0.9 - 391 gpm
  • Pressure: Up to 225 psi

Liberty Pump Parts

The Liberty Series also represents the best value in aftermarket PC replacement pumps and parts for your existing *Moyno®, *Tarby®, *Continental®, *Roper®, and *Monoflo® brand pumps. Liberty’s replacement progressive cavity pump parts are dimensionally interchangeable with the OEM parts.


Millenium Heavy Duty Pumps

Liberty’s Millennium Heavy-Duty Progressive Cavity Pumps are designed for challenging applications like heavy and abrasive sludges, greases and slurries in sewage and reclamation processes as well as Return Activated Sludge (RAS), Thickened Waste Activated Sludge transfer (TWAS) and sludge dewatering and chopper transfer pumping in wastewater facilities. The Millennium series is well suited for the waste-oil and crude oil reclamation and transfer industry.  Special wear coatings like titanium or other exotic coatings are available upon request.

All Millennium Series parts such as Rotors and Stators or Wetted parts such as Connecting Rods and Seals dimensionally interchange as aftermarket replacements with other popular manufacturers pump models like the Moyno® 2000 Series and the Tarby® Century V Series, and the Continental® CG Series of Progressive Cavity Pumps, potentially saving you and your facility thousands of dollars in replacement part costs yearly.  Over 500 wastewater, waste-transfer, and dewatering facilities in North America currently use Millennium parts in their daily service.


Millennium Pump Features

  • Modular Design
  • Maintenance Free
  • Easy Assembly/Disassembly
  • Simple Pin Joint Design
  • NPT Discharge Connections
  • Low Shear
  • Non-Pulsating
  • Packing or Mechanical Seals
  • Steel or Stainless Steel Base
  • Chrome Plated Tool Steel or Stainless Steel Rotors
  • Buna Nitrile/Viton®/EPDM/Natural Rubber Stators
  • Capacity: 54 to 788 gpm
  • Pressure: 85 to 350 psi

Victory Pump Parts

Liberty Process Equipment offers in stock replacement aftermarket pump parts to fit Seepex® brand Series BN and MD series Progressing Cavity Pumps.  Liberty’s Victory Line of Aftermarket Seepex® progressive cavity pump parts can save you money compared to OEM parts with no compromise in quality, and they can be shipped same day.

Liberty provides many of the commonly used sizes of rotors, stators, coupling rods, joint kits, seals, and other spares for your Seepex® BN and MD series pumps maintenance, so you can minimize unnecessary downtime and expense.

All Victory pump parts are manufactured and tested to OEM specifications utilizing the highest quality steel and rubber compounds for long-lasting service.



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