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LJ4 PC Pump Rotors

LJ4 PC Hopper Pumps

Progressive Cavity Hopper Pumps and Parts

The Liberty Justice Series Open Hopper Progressive Cavity Pump is an ideal low-flow pumping solution for viscous solutions with high solids contents such as high-viscosity foodstuffs, food waste and other non-easily pumped materials with solids content. The Justice Series offers a heavy-duty auger in a gravity-fed hopper mated to a rotor and stator for the most difficult pumping applications available today.

LJ4 Open Hopper Pump Views

The LJ4 series of progressive cavity hopper pump parts are supplied as 100% drop in aftermarket parts for your Moyno® J4-Frame and Tarby® TJ4 Frame pumps. Parts such as Rotors, Stators, Connecting Rods, Seals, Gasketery and more are all available as quality aftermarket replacement pump parts for your existing pump assembly.

Flow rates of 2.02 GPM per 100 Revolutions (5 GPM to 9 GPM) at up to 225 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.

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.

LJ4 Flow Rate

LJ4 Progressive Cavity Pump Drive Assembly

LJ4 Progressive Cavity Pump CDQ Drive Assembly

The pump units modular design with simple hardened pinned joint drive assembly makes it an ideal cost-effective choice. The standard seal design is a set of gland packing with a Lantern Ring and flush connections. Mechanical seal options are readily available.

Download informational PDF's below

LJ4 Pump Information LJ4 Flow Rate Curves LJ4 Pump Dimensional Drawings

*Neither Progressivecavityparts.com nor its parent companies nor their replacement aftermarket progressive cavity pump parts are representative, affiliated or associated with Moyno®, Tarby®, Netzsch®, Continental®, Seepex®, Roper® or Allweiler® or their respective parent corporations. All part numbers, product lines and/or descriptions are for reference purposes only.

  • LJ4 Pump Casings and Supports

    LJ4 CDQ Progressive Cavity Pump Casings and Supports

    LJ4 Series Pump Casings and Supports in Cast Iron, Steel and Stainless Steel are available for your pumping requirements. Pumps can be assembled with a variety of materials for a customized pumping solution for you. Contact us for details.

  • LJ4 Pump Stators

    LJ4 CDQ Progressive Cavity Pump Stators

    Stators are available in many elastomer materials such as Buna, natural rubber, EPDM and Viton.

  • LJ4 Pump Rotors

    LJ4 CDQ Progressive Cavity Pump Rotors

    Rotors are typically hardened tool steel or 316 stainless steel with a hard chrome plating specification and are available in 1, 2, and 3 stages for applications with 75, 150, and 225 PSI discharge pressures. All other wetted parts are either carbon steel or 316 stainless steel.

  • LJ4 Pump Parts Kits

    LJ4 CDQ Progressive Cavity Pump Parts Kits

    The Liberty LJ4 Progressive Cavity Pump parts are direct aftermarket replacements that dimensionally interchange with the Moyno® J4 Series, and the Tarby® TJ4 Series.*

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2LJ4 Progressive Cavity Hopper Pump 1LL4 PC Pump Stator 2LL4 PC Pump Stator
Sold Individually $6,296.00
Sold Individually $195.00
Sold Individually $295.00
2LJ4 Progressive Cavity Hopper Pump -  Steel Auger 1LL4 PC Pump Stator 2LL4 PC Pump Stator
2LJ4 Progressive Cavity Hopper Pump 1LL4 PC Pump Stator Buna Nitrile with Steel Casing
3LL4 Pump Stator 2LL4 PC Pump Stator 3LL4 PC Pump Stator
Sold Individually $394.00
Sold Individually $558.00
Sold Individually $394.00
3LL4 Pump Stator 2LL4 PC Pump Stator 3LL4 PC Pump Stator
Buna Nitrile with Steel Casing Buna Nitrile with Stainless Steel Casing Natural Rubber with Steel Casing
2LL4 PC Pump Stator 1LL4 PC Pump Stator-Stainless Steel 1LL4 PC Pump Stator- Stainless Steel
Sold Individually $295.00
Sold Individually $314.00
Sold Individually $314.00
2LL4 PC Pump Stator 1LL4 PC Pump Stator-Stainless Steel 1LL4 PC Pump Stator- Stainless Steel
Natural Rubber with Steel Casing EPDM Rubber with Stainless Steel Casing Buna Nitrile with Stainless Steel Casing
1LL4 PC Pump Stator 2LL4 PC Pump Stator 3LL4 PC Pump Stator
Sold Individually $538.00
Sold Individually $848.00
Sold Individually $1,230.00
1LL4 PC Pump Stator 2LL4 PC Pump Stator 3LL4 PC Pump Stator
Viton with Steel Casing Viton with Steel Casing Viton with Steel Casing
2LL4 PC Pump Stator-Stainless Steel 3LL4 PC Pump Stator 2LL4 PC Pump Stator-Stainless Steel
Sold Individually $1,400.00
Sold Individually $738.00
Sold Individually $600.00
2LL4  PC Pump Stator-Stainless Steel 3LL4 PC Pump Stator 2LL4 PC Pump Stator-Stainless Steel
Viton with Stainless Steel Casing Buna Nitrile with Stainless Steel Casing EPDM with Stainless Steel Casing
1LL4 PC Pump Rotor 1LL4 PC Pump Rotor-Stainless Steel 2LL4 PC Pump Rotor
Sold Individually $323.00
Sold Individually $567.00
Sold Individually $567.00
1LL4 PC Pump Rotor 1LL4 PC Pump Rotor-Stainless Steel 2LL4 PC Pump Rotor
Chrome Plated Steel Chrome Plated Stainless Steel Chrome Plated Steel
2LL4 PC Pump Rotor-Stainless Steel 3LL4 PC Pump Rotor 3LL4 PC Pump Rotor-Stainless Steel
Sold Individually $920.00
Sold Individually $796.00
Sold Individually $1,186.00
2LL4 PC Pump Rotor-Stainless Steel 3LL4 PC Pump Rotor 3LL4 PC Pump Rotor-Stainless Steel
Chrome Plated Stainless Steel Chrome Plated Steel Chrome Plated Stainless Steel
LL4 PC Pump Shaft Pin LL4 PC Pump Shaft Pin-Stainless Steel LL4 Pump Rotor Pin-Stainless Steel
Sold Individually $18.00
Sold Individually $26.00
Sold Individually $26.00
LL4 PC Pump Shaft Pin LL4 PC Pump Shaft Pin-Stainless Steel LL4 Pump Rotor Pin-Stainless Steel
Steel Stainless Steel Stainless Steel
LL4 PC Pump Rotor Pin LL4 Stator Support Foot LL4 Drive Pin Retaining Screw - Stainless Steel
Sold Individually $18.00
Sold Individually $102.00
Sold Individually $32.00
LL4 PC Pump Rotor Pin LL4 Stator Support Foot - Cast Iron LL4 Drive Pin Retaining Screw
Steel Cast Iron Stainless Steel
LL4 PC Pump Thrust Bearing LL4 PC Pump Radial Bearing LL4 PC Pump Bearing Spacer
Sold Individually $142.00
Sold Individually $85.00
Sold Individually $34.00
LL4 PC Pump Thrust Bearing LL4 PC Pump Radial Bearing LL4 PC Pump Bearing Spacer
Steel Steel Steel