Liberty LL4 Series Progressive Cavity Pump

The Liberty Process LL4 Progressive Cavity Pump for highly abrasive and wearing applications such as grouting and slurry mixtures with a high abrasives content of up to 50% in suspension. Grouting and plastering work requires a pump that can handle the grit and solids in suspension that would destroy another pump.

The Liberty LL4 pumps and parts are direct aftermarket replacements that interchange with the *Moyno® L4, *Tarby® TL4 and *Continental® CL4 models.

The LL4 is a standard flanged pump design manufactured with cast iron or 316 stainless steel casings and designed in 1, 2, and 3 stages for 75, 150, and 225 psi discharge pressures pumping from 2-24 GPM. (2.02 Gallons per 100 revolutions).

The LL4's modular design comes with a simple hardened pinned joint drive assembly that ensures its ease of use with increased durability during rough pumping applications. The LL4 Rotors are typically tool steel or 316 stainless steel with a hard chrome plating, ideal for thickened grout an grouting slurries. All other wetted parts are either carbon steel or 316 stainless steel. Stators are available in many elastomer materials such as Buna Nitrile, Natural Rubber, EPDM and Viton depending upon application.

If you do plan on using this pump for heavy slurries with solids content, be sure to talk to your Liberty representative to get the right rotor and stator for your application. The standard seal design is a set of packing rope; however, mechanical seal assembly retrofits are readily available.

The LL4 represents one of the most effective choices in PC pumps today for the pumping of thickened liquids with high abrasives content and liquid slurries.

Contact a Liberty Process representative today for more information about the LL4 Series.

Liberty Series - LL4 - Technical Data

Flow Rate 2 - 24 GPM
Pressure 0 - 225 PSI
Seal Options Packing and Mech. Seal
Base Options Carbon and Stainless Steel
INLET / OUTLET 2-1/2" / 2"
Rotors Chrome Plated Tool Steel or Stainless Steel
Stators Buna / Viton® / EPDM / Rubber
Motor Options 1/2, 3/4, 1, 1.5, 2 HP

Pump Features

  • Modular Design
  • Maintenance Free
  • Easy Assembly/Disassembly
  • Simple Pin-Joint Connections
  • NPT Discharge Connections
  • Non-Pulsating
  • Low Shear
  • Run in Either Direction

Compatibility

Purchase the LL4 Pump & Parts

Liberty LL4 Pumps

Liberty 1LL4 Progressive Cavity Wobble Stator Pump
Liberty 1LL4
CDQ
Liberty 2LL4 Progressive Cavity Wobble Stator Pump
Liberty 2LL4
CDQ
Liberty 3LL4 Progressive Cavity Wobble Stator Pump
Liberty 3LL4
CDQ

Liberty LL4 Parts

Liberty LL4 Pump Stator
Liberty LL4
Pump Stator
Liberty LL4 Pump Rotor
Liberty LL4
Pump Rotor
Liberty LL4 Connecting Rod
Liberty LL4
Connecting Rod
Liberty LL4 Connecting Rod Kit
Liberty LL4
Connecting Rod Kit
Liberty LL4 Drive Shaft
Liberty LL4
Drive Shaft
Liberty LL4 Bearing Cover Plate
Liberty LL4
Bearing Cover Plate
Liberty LL4 Bearing Kit
Liberty LL4
Bearing Kit
Liberty LL4 Bearing Lock Nut
Liberty LL4
Bearing Lock Nut
Liberty LL4 Bearing Lock Washer
Liberty LL4
Bearing Lock Washer
Liberty LL4 Bearing Spacer
Liberty LL4
Bearing Spacer
Liberty LL4 Collar Pin Retainer
Liberty LL4
Collar Pin Retainer

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.