Millennium G090G1L Series Progressive Cavity Pump

The Liberty Process G090G1L Progressive Cavity Pump is designed for activated sludge pumping for liquids with high biosolids content or heavy waste solids in the (RAS) Return Activated Sludge process in wastewater treatment facilities.

The G090G1L's low shear and high torque output enables it to pump the thickest activated sludges back to the secondary treatment tank with no issues. Solids handling capability of up to 50% by weight allows even the toughest application to be pumped along with a flow rate of 90 gallons/100 revolutions @ 293 to 405 GPM with a temperature resistance of up to 350° degrees Fahrenheit.

All parts for the G090G1L such as rotors, stators and internal wetted parts such as seals and connecting rods dimensionally interchange as aftermarket replacements with other popular manufacturers pump models like the *Moyno® 2000 Series, the *Tarby® Century V Series, and the *Continental® CK Series of Progressive Cavity Pumps saving you thousands of dollars in replacement part costs.

The G090G1L is a standard ANSI flanged pump design manufactured with high strength cast Iron or 316 Stainless Steel pump casings and designed in 1, 2 and up to 4 stages for 85, 170, and 350 psi discharge pressures making it an ideal low-cost, maintenance free drop-in replacement pump. Standard suction and discharge flange size for the G090G1L is 8".

The pumps modular design comes with a positively sealed, hardened gear joint assemblies, hardened tool steel rotors or stainless steel rotors both with hard chrome plating for long-life pumping and a wide selection of stators in Buna Nitrile, Viton®, EPDM and Natural Rubber.

All other wetted parts are either carbon steel or 316 stainless steel. The standard seal design is a set of packing with a lantern ring and flush connections. Mechanical seal options are readily available. Returning the sludge back to the secondary tank in the RAS process requires a pump with a flexible design, the G090G1L is that pump.

Contact a Liberty Process Equipment Representative today for more information about the G090G1L Progressive Cavity Pumps for Waste Solids.

Millennium Series - G065G1L - Technical Data

Flow Rate 293 - 405 GPM
Pressure 85 - 350 PSI
Seal Options Packing and Mech. Seal
Base Options Steel or Stainless Steel
INLET / OUTLET 8" / 8" - ANSI Flange
Rotors Chrome Plated Tool Steel or Stainless Steel
Stators Buna Nitrile / Viton® / EPDM / Natural Rubber
Motor Options 5 - 40 HP

Pump Features

  • Low Shear
  • Solids handling up to 50%
  • Hardened Joints
  • Packing or Mechanical Seal
  • 4-Stage Options
  • Steel or Stainless Steel


Purchase the G090G1L Pump & Parts

Millennium G090G1L Pumps

Millennium 1G090G1L Progressive Cavity Hopper Pump
Millennium 1G090G1L

Millennium G090G1L Parts

Millennium G090G1L Gear Joint Kit
Millennium G090G1L
Gear Joint Kit
Millennium G090G1L Gear Drive Shaft
Millennium G090G1L
Drive Shaft Head
Millennium G090G1L Gasket Buna Nitrile
Millennium G090G1L
Gasket Buna Nitrile
Millennium G090G1L Pump Stator
Millennium G090G1L
Pump Stator
Millennium G090G1L Graphite PTFE
Millennium G090G1L
Graphite PTFE
Millennium G090G1L Pump Rotor
Millennium G090G1L
Pump Rotor

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.