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American AP-33 Series

Long-Coupled Wobble Pumps and Parts

The AP-33 long-coupled Progressive Cavity Wobble Pump series from Liberty Process Equipment offers the best value available on the pump market for flows from 0-9.4 GPM and pressures up to 50 psi. The simple design of the wobble stator and just one universal joint give you the advantages of a progressive cavity pump of low pulsation and shear, solids handling and viscous liquid pumping at an affordable price.

In addition, the pump is available with a standard mechanical seal or can be upgraded to a hard-face mechanical seal for abrasion resistance. We also offer optional gland packing. The American pump series is also offered in a close-coupled design for mounting on a baseplate with a standard motor.

View Pump Curves, Drawings & Performance

Find out more about the specifications of the American Series AP33 Pump on our Liberty Process website.

Aftermarket American Series AP-33 PC Pump Parts

AP-33 Wobble Stator Pump Motors/ Baseplates

Motors and mounting baseplates for full pump packages are available based upon your requirements. Please contact us today to discuss your options.

AP-33 Wobble Stator Pump Stators

Standard Buna Nitrile stators with options in Viton and EPDM. Other stator materials are available. Contact us for details.

AP-33 Wobble Stator Pump Rotors

The long-coupled version is available with a standard 316 stainless steel hard-chrome plated rotor for long service life.

AP-33 Wobble Stator Pump Parts

Replacement pump parts as well as rebuild services for wobble stator pumps are available. Parts are available online, for rebuild services please contact us.

*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.

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AP33 Wobble Stator Pump Sold Individually $700.00	AP33 Wobble Stator Pump-Stainless Steel Sold Individually $1,856.00	AP33 Wobble Stator Pump-Stainless Steel Sold Individually $1,553.00

w/Threaded Connections - 0-9.4 GPM	w/Threaded Connections - 0-9.4 GPM	w/Threaded Connections - 0-9.4 GPM


AP33/APM33 Pump Stator Sold Individually $230.00	AP33/APM33 Pump Stator Sold Individually $55.00	AP33/APM33 Threaded Pump Rotor Sold Individually $155.00

Viton	Buna Nitrile	Chrome Plated Stainless Steel


AP and APM15/22/33/44 Mechanical Pump Seal Sold Individually $50.00	AP and APM 15/22/33/44 Hard Face Mechanical Pump Seal Sold Individually $145.00	AP and APM15/22/33/44 Mechanical Pump Seal Sold Individually $63.00

Carbon/Ceramic with Buna Elastomers	Silicon Carbide/Silicon Carbide with Buna Elastomers	Carbon/Ceramic with Viton Elastomers


AP and APM 15/22/33/44 Threaded Flex Joint Sold Individually $269.00	AP and APM 15/22/33/44 Threaded Flex Joint Sold Individually $220.00	AP15-44 Threaded Drive Shaft Sold Individually $103.00

Stainless Steel and Viton	Stainless Steel and Buna Nitrile	Stainless Steel


AP15/AP22/AP33/AP44 Bearing Sold Individually $35.00	AP15/AP22/AP33/AP44 Bearing Housing Sold Individually $268.00	AP15/AP22/AP33/AP44 Bearing Housing Sold Individually $762.00

Steel	Cast Iron	Stainless Steel


AP and APM 15/22/33/44 Drain Plug Sold Individually $10.00	AP15/AP22/AP33/AP44 Retaining Ring Sold Individually $12.00

Steel	Steel