Justice LJ90 Series Progressive Cavity Pump

The Liberty Process Justice LJ90 Series Open Hopper Progressive Cavity Pump represents an ideal pumping solution for viscous solutions with high solids contents such as grapes and must for processing and making wine and juice products. Flow rates of 150 gallons / per 100 Revolutions (150 to 600 GPM) at 0-250 PSI are standard through the range of the series. The Justice Series offers a design of a heavy-duty auger mated to a rotor and stator for the most difficult pumping applications available today.

The large rectangular feed hopper design easily accommodates your pumping medium while the non-pulsating design of the product produces a low-shear flow that conveys your medium along effortlessly. Solids in suspension of up to 50% are accommodated by the Auger design.

The modular design of the LJ90 Justice Series Open Hopper Progressive Cavity pump is a hardened pinned-joint drive assembly with a body available in steel or 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 LJ90 Justice Series are available in 1, 2, and 3 stages for applications with 85, 170, and 250 PSI discharge pressures with stators available in Buna Nitrile, Viton, EPDM and Natural Rubber. The standard seal design is a set of packing with a lantern ring and flush connectors. Mechanical Seal options are readily available.

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

Justice Series - LJ90 - Technical Data

Flow Rate 150 - 600 GPM
Pressure 0 - 250 PSI
Seal Options Packing and Mechanical Seal
Base Options Steel and Stainless Steel
INLET / OUTLET 16"l x 13"w
Rotors Stainless, Chrome Plated
Stators Buna / Viton® / EPDM / Rubber
Motor Options 15, 20, 25 HP

Pump Features

  • Large Hopper
  • Welded Auger
  • Hardened Joints
  • Packing or Mechanical Seal
  • 3-Stage Options
  • Steel or Stainless Steel


Pumps and pump parts offered for sale by Liberty Process Equipment, Inc. are made in the United States, Germany, India, Spain, Argentina and Brazil.

*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.