Liberty LL12 Series Progressive Cavity Pump

Liberty Process Liberty Series LL12 Progressive Cavity Pump

The Liberty Process LL12 Progressive Cavity Pump is an industrial-sized and manufactured heavy-duty progressive-cavity pumping unit for difficult thickened pumping agents such as grease and biosolids in suspension and scum with solids content. The LL12 Series is a standard flanged pump 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 and is carried in stock. Flow rate (43.5 gallons/100 revolutions).

The LL12 is a modular design with simple hardened pinned joint drive assembly. Rotors are typically hardened tool steel or 316 stainless steel with an applied hard chrome plating for long life in abrasive and erosive applications. All other wetted parts are either carbon steel or 316 stainless steel for added durability.

Stators are available in many elastomer materials such as Buna Nitrile, Natural Rubber, EPDM and Viton. The standard seal design is a set of gland packing with a lantern ring set and Flush Connections. Mechanical seal options for the LL12 are readily available.

The Liberty LL12 Progressive Cavity Pump parts are direct aftermarket replacements that work with the *Moyno® L12 Series, *Tarby® TL12 Series and *Continental® CL12 Series.*;

Contact a Liberty Process representative today for more information about the LL12 Series.

Liberty Series - LL12 - Technical Data

Flow Rate 85 - 260 GPM
Pressure 0 - 225 PSI
Seal Options Packing and Mech. Seal
Base Options Carbon Steel & Stainless Steel
INLET / OUTLET 8" / 6"
Rotors Tool Steel & Stainless Steel, Chrome-Plated
Stators Buna / Viton® / EPDM / Rubber
Motor Options 3, 5, 7.5, 10, 15, 20 & 25 HP

Pump Features

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

Purchase the LL12 Pump & Parts

Liberty LL12 Pumps

Liberty LL12 Parts

Liberty LL12 Pump Stator
Liberty LL12
Pump Stator
Liberty LL12 Pump Rotor
Liberty LL12
Pump Rotor
Liberty LL12 Connecting Rod
Liberty LL12
Connecting Rod
Liberty LL12 Connecting Rod Kit
Liberty LL12
Connecting Rod Kit
Liberty LL12 Drive Shaft
Liberty LL12
Drive Shaft
Liberty LL12 Bearing Cover Plate
Liberty LL12
Bearing Cover Plate
Liberty LL12 Bearing Kit
Liberty LL12
Bearing Kit
Liberty LL12 Bearing Lock Nut
Liberty LL12
Bearing Lock Nut
Liberty LL12 Bearing Lock Washer
Liberty LL12
Bearing Lock Washer
Liberty LL12 Bearing Spacer
Liberty LL12
Bearing Spacer
Liberty LL12 Collar Pin Retainer
Liberty LL12
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.