Progressive Cavity Pumps for Chemical & Paper

Progressive cavity (single screw) pumps are core fluid transfer equipment preferred by global EPC contractors for turnkey chemical and pulp & paper plants, engineered with German-origin core technology to tackle complex viscous, corrosive, fiber-laden and high-solid media.

The pump’s standout technical strengths perfectly fit continuous industrial production demands. It delivers pulse-free, low-shear conveying without damaging sensitive polymers, pulp fibers or chemical emulsions, with volumetric efficiency up to 95% and dosing accuracy within ±1%. It handles media ranging from -20℃ to 180℃, viscosity up to 1,000,000 cp and solid content as high as 65%, alongside strong self-priming capacity of 3–5 meters water column. Modular construction simplifies maintenance, while optional heating jackets, CIP cleaning systems and dry-run protection extend service life for harsh EPC working conditions.

In chemical EPC projects, our pumps transfer butyraldehyde, phosphoric acid slurry, amino acid mixtures, high-chloride corrosive liquids and high-viscosity resin. Customizable German imported stators (NBR, EPDM, FKM, PTFE) and stainless steel/duplex steel rotors resist strong acid, alkali and abrasion, with API 682-standard mechanical seal flushing systems available for toxic, flammable chemical processes.

For pulp & paper EPC lines, the equipment transports raw pulp, black liquor, coating pigments, bleaching agents and dewatered sludge cake across gluing, filling, coating and wastewater treatment procedures. Hopper-type pump models resolve poor fluidity of high-solid sludge, ensuring stable, uniform fiber delivery for consistent paper quality.

Supported by our certified cooperative manufacturing base, we fully support EPC tender customization. Factories adopt German rubber injection lines and use premium drive brands SEW, NORD and ABB explosion-proof motors. All pumps pass strict full testing, deliver complete tender documentation, and provide one-stop technical matching for global turnkey EPC contractors, balancing stable performance and long-term operational cost savings.