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Justice Series Open Hopper Progressive Cavity Pumps

Justice Series Progressive Cavity Auger and Hopper Pump

Justice Series Icon The Justice Series Open Hopper Progressive Cavity Pumps represent an ideal pumping solution for viscous solutions and those with high solids contents such as sludges and slurries, wine must, food waste, polymers, pulp and paper, brewing mash and mash-tun removal and other low-flowability pumping mediums that other pumps would have difficulty pumping.

The Justice Series offers a heavy-duty auger mated to a rotor and stator for the most difficult progressive cavity pumping applications.

Our hopper-enclosed auger feed design forces the liquid toward the rotor and stator so it can fill the cavities and then pump. The heavy-duty hopper has slanted sides so the medium pours towards the auger. Custom hopper and auger designs are available for installations where you need bigger hoppers.

The modular design of the Justice Series Open Hopper Progressive Cavity Pump is a hardened pinned-joint drive assembly with a suction body available in steel or 316 stainless steel and internal wetted components in either stainless steel or hardened tool steel with hard chrome plating for long-life and durability in abrasive pumping applications.

Rotors and Stators for the Justice Series are available in 1, 2, and 3 stages representing 75, 150, and 225 PSI discharge pressures with stators available in Buna Nitrile, Viton, EPDM and Natural Rubber. The standard seal design is a set of gland packing with a lantern ring and flush connections. Mechanical Seal options are readily available.

Contact a Liberty Process Equipment engineer today with your application information and we'll be glad to see if the Justice Series is the PC Pumping solution you're looking for.

Justice Series - LJ - Technical Data

Pump Features


Justice - LJ4

Justice LJ4 progressive cavity pump The LJ4 size Justice Open-Hopper 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 - 10 GPM
  • PRESSURE 0 - 225 PSI
  • Viscous Solutions with High Solids Content
  • High-Viscosity Chemical Transfer
  • Slurry & Sludge Pumping Applications

Justice - LJ6

Justice LJ6 progressive cavity pump The LJ6 size Justice Open-Hopper 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 11 - 24 GPM
  • PRESSURE 0 - 225 PSI
  • Viscous Solutions with High Solids Content
  • High-Viscosity Chemical Transfer
  • Rendering Plant Waste Pumping Applications

Justice - LJ8

Justice LJ8 progressive cavity pump The LJ8 size Justice Open-Hopper 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 25 - 47 GPM
  • PRESSURE 0 - 225 PSI
  • Viscous Solutions with High Solids Content
  • Spent Grain & Wine Must Transfer
  • Slurry & Sludge Pumping Applications

Justice - LJ10

Justice LJ10 progressive cavity pump The LJ10 size Justice Open-Hopper 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 48 - 84 GPM
  • PRESSURE 0 - 225 PSI
  • Viscous Solutions with High Solids Content
  • Spent Grain & Wine Must Transfer
  • Sewage Sludge Transfer Pumping Applications

Justice - LJ10H

Justice LJ10H progressive cavity pump The LJ10H size Justice Open-Hopper 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 85 - 127 GPM
  • PRESSURE 0 - 225 PSI
  • Viscous Solutions with High Solids Content
  • Industrial Wastewater Industry Pumping
  • Filter Press Feeding 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.