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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

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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.

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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.

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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.

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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 AP33 Wobble Stator Pump-Stainless Steel AP33 Wobble Stator Pump
AP33 Wobble Stator Pump
Sold Individually $700.00
AP33 Wobble Stator Pump-Stainless Steel
Sold Individually $1,856.00
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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
American Series AP33/APM33 F Pump Stator American Series AP33/APM33 Q Pump Stator - Buna Nitrile American Series AP33/APM33 Threaded Wobble Stator Pump Rotor
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Sold Individually $230.00
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Viton Buna Nitrile Chrome Plated Stainless Steel
American AP and APM15/22/33/44  Series Standard Mechanical Pump Seal American AP and APM 15/22/33/44  Series Hard Face Mechanical Pump Seal American AP and APM15/22/33/44  Series Standard Mechanical Pump Seal
Carbon/Ceramic with Buna Elastomers Silicon Carbide/Silicon Carbide with Buna Elastomers Carbon/Ceramic with Viton Elastomers
American AP and APM 15/22/33/44  Series SSF Threaded Flex Joint American AP and APM 15/22/33/44 SSQ Threaded Flex Joint American Series AP15-44 SSQ Wobble Stator Pump Threaded Drive Shaft
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Sold Individually $103.00
Stainless Steel and Viton Stainless Steel and Buna Nitrile Stainless Steel
American AP15/AP22/AP33/AP44  Series Bearing - Steel American Series AP15/AP22/AP33/AP44 CDQ Bearing Housing American Series AP15/AP22/AP33/AP44 SSQ Bearing Housing
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Sold Individually $35.00
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Sold Individually $268.00
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Sold Individually $762.00
Steel Cast Iron Stainless Steel
American AP and APM 15/22/33/44 Drain Plug American AP15/AP22/AP33/AP44 Series Retaining Ring
AP and APM 15/22/33/44 Drain Plug
Sold Individually $10.00
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Sold Individually $12.00
Steel Steel