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Progressive Cavity Pumps

PCM Progressive Cavity Pumps

PCM brings more than 90 years of fluid-handling manufacturing experience to industries worldwide. RC Beach & Associates represents PCM’s engineered progressing cavity pumps in Florida for sludge feed, transfer, loading and conveyance in municipal water and wastewater applications.

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PCM EcoMoineau MX progressing cavity pump exploded view showing Maintenance In Place
90+
years of PCM manufacturing experience
5 steps
to replace a stator or rotor in place
Self-priming
high suction capability
Reversible
run backward to clear a line
Moineau™ Technology

Every PCM pump is built on Moineau™ technology

Named for its inventor, René Moineau: a precision-machined stainless steel helical rotor turns inside a moulded elastomer helical stator. Together they form a double chain of sealed, honeycomb-shaped cavities that travel spirally along the axis of the pump without ever changing shape or volume — the product is carried through the pump rather than pushed, sheared or churned.

That geometry suits the two fluids that give centrifugal equipment the most trouble: fragile products that degrade under shear, and viscous products that resist being moved at all. Thickened and dewatered municipal sludge is both.

PCM progressing cavity pumps installed at a wastewater treatment plant
What That Means in Service

Built for thick, sensitive sludge

Why progressing cavity pumps are a fit for municipal sludge feed and transfer.

Constant, non-pulsating flow

No pressure spikes passed to polymer injection, dewatering or thermal drying downstream.

Flow proportional to speed

VFD control gives repeatable, predictable throughput across the operating range.

Very low shear

Floc structure and fragile solids survive the transfer.

High suction and self-priming

Pulls from wet wells, hoppers and silos.

Fully reversible

Run backward to clear a line or drain a section.

High pressure at high viscosity

Higher discharge pressure than most positive-displacement alternatives, at high or variable viscosity.

PCM EcoMoineau MX progressing cavity pump with Maintenance In Place
EcoMoineau™ MX

Maintenance In Place

Maintenance In Place is standard across the PCM EcoMoineau™ MX range. The stator and/or rotor is replaced in five steps, with the pump still bolted in its installation — no breaking piping, no lifting the unit out, no re-alignment on restart.

The maintenance window shrinks accordingly, and downtime and life-cycle cost drop with it. RC Beach stocks replacement stators and rotors and provides field service for PCM equipment across Florida.

Video

See the PCM EcoMoineau™ MX

Watch how the pump works and how Maintenance In Place keeps it in service.

PCM EcoMoineau™ MX

Turnkey Pump Systems

Skid-mounted and ready to run

PCM also builds turnkey skid systems that shorten the integration of a pumping solution into an existing process. A ready-to-use skid arrives with the pump, accessories and control panel mounted and wired — one delivery, one set of connections, one commissioning visit.

Standard configurations cover common municipal duties, and PCM engineers custom skids where the application calls for it. Built to a high standard, the systems hold down long-run maintenance and spare-parts cost. Skid packages are commonly paired with chemical feed systems for polymer conditioning ahead of dewatering equipment.

PCM turnkey pump skid with pump, accessories and control panel
In the Field

PCM pumps at work

Installations and configurations for sludge feed and transfer.

PCM pumps installed at a wastewater treatment plant
Trial installation for sludge transfer testing
Long-coupled PCM pump assembly
PCM pump in an industrial sludge handling application
PCM pump with flanged inlet and outlet

Talk to an application engineer

RC Beach & Associates has been sizing and specifying water and wastewater equipment for Florida municipalities since 1980. Send us the duty — solids, viscosity, flow and head — and we will come back with a PCM selection.

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PCM®, Moineau™ and EcoMoineau™ are trademarks of PCM. Product images and information courtesy of PCM (pcm.eu).