Pumps & Pump Parts
FLEX PROGRESSIVE CAVITY PUMPS
A Progressive Cavity Pump (PC) is a self priming rotary positive displacement
pump (displaces a fixed volume with each revolution). Progressive cavity pumps can pump a variety of fluids including
viscous polymers, slurries, sludges, high solid compounds and abrasive
materials.
The design consists of a single helix that rotates eccentrically
in the double helix stator.

Cross-Sectional View of a Progressive Cavity Pump
Progressive Cavity Pumps provide many features:
- Pumping viscous materials
- Pumping abrasive fluids
- Pumping shear sensitive materials
- High-pressure capability
- High-capacity capability
- High suction lift
- Requires no valves
- Self priming
- Used in high temperatures applications
- Handles large solids
- Quiet, Non-pulsating operation
Progressive cavity pumps used in Municipal Wastewater, Pulp and Paper, Mining, Oil Field, Refining, Rendering, Food Processing and Building Materials are generally installed to meter, transfer, sample, boost and grind.
FLEX Progressive Cavity Pumps offer a wide variety and range of progressive cavity pumps, packaged systems, controls and instrumentation, application and sizing support.
Replacement & Spare Parts
GENERAL FILTRATION provides spare parts and components for many competing brands including:
- Moyno®
- Tarby®
- Seepex®
- Allweiler®
- Netzsch®
- Rotors
- Stators
- Connecting Rod Kits
- Gear Joints
- Drive Shafts
- Clamps
- Bearings
- Seal Kits
- Packing Sets
Call us today for technical support, sizing and custom packaged systems, pump and parts information.
