Progressive Cavity Pumps
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Progressive Cavity Pumps

Smooth transfer without disrupting the structure of demanding, sticky, and highly viscous fluids like treatment sludge, tomato paste, fruit pulp, and honey.

Progressive Cavity Technology

Progressive Cavity Pumps operate on the principle of a stainless steel rotor turning inside a flexible stator to create volumetric chambers (cavities). This helical motion continuously pushes the fluid forward without crushing, foaming, or creating pulsation. It is the indispensable standard of the industry in transferring the most demanding, solid particle-containing, or sticky liquids.

Progressive Cavity Rotor and Stator Cross-Section

Design and Performance Advantages

Pulsation-Free, Continuous, and Precise Flow
Fluid Transfer up to 1,000,000 cPs Viscosity
Conveying Solid Particles and Fibers Without Shearing
High Pressure at Low Speed (Multi-Stage Stator System)
Food-Grade NBR, EPDM, or Viton Stator Options
Quiet Operation and Easy Spare Part Replacement
Progressive Cavity Internal Hardware Features
Progressive Cavity Technical Capacity Drawing

Technical Specifications and Capacity

* Flow rate and pressure values are calculated project-specifically based on the viscosity of the fluid to be transferred and the motor (gearbox) speed.

PUMP MODELMAX. FLOW (m³/h)MAX. PRESSURE (Bar)CONNECTION SIZE
WMP-011 m³/h6 Bar1"
WMP-055 m³/h12 Bar1 1/2"
WMP-1010 m³/h12 Bar2"
WMP-2525 m³/h24 Bar3"
WMP-5050 m³/h24 Bar4"

Frequently Asked Questions

For which fluids is a progressive cavity pump preferred?

It is used for all highly viscous and sticky liquids like cream, shampoo, treatment sludge, olive pomace, tomato paste, fish oil, and glue where normal pumps struggle or stall.

What is the lifespan of the Stator (Rubber), and what is done when it degrades?

Stator life depends on the abrasiveness of the fluid and the operating temperature. Dry running can quickly burn the stator. When it degrades, the stator replacement (maintenance) can be easily done by just opening the front casing without completely removing the pump from the line.

Technical Specification

PDF DOCUMENT

Download the catalog containing stator material compatibilities, pressure/cavity calculations, and motor gearbox curves.

DOWNLOAD SPECIFICATION
TREATMENT FACILITY
Progressive Cavity Treatment Reference

Sludge feed pumps with 24 Bar pressure we installed for an industrial wastewater treatment facility.

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How Dense is Your Fluid?

Send us the density (viscosity) of the liquid you want to transfer and your hourly target, and let's choose the right rotor-stator pair.

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