A portable eccentric screw pump, also known as a progressivecavity pump, is a versatile positive displacement pump designed for thetransfer of fluids, particularly viscous or abrasive ones. It operates using arotating screw, or rotor, inside a helical-shaped stator. As the rotor turns,cavities are created and move along the pump, enabling continuous, smooth fluidtransfer. The pump's unique design ensures a steady, non-pulsating flow, whichmakes it ideal for applications requiring precision or the handling of delicatematerials. Portable versions are compact and lightweight, making them easy totransport and use in various locations.
This type of pump is commonly used in industries such aswastewater treatment, where it efficiently handles sludges and slurries, aswell as in food and beverage processing for moving viscous products like saucesand syrups without damaging their texture. It is also popular in the chemicaland pharmaceutical sectors for transferring sensitive or corrosive fluids. Theconstruction and mining industries benefit from its ability to handle abrasivematerials such as grout or cement. One of the pumps key advantages is itsability to move fluids with low shear, making it ideal for shear-sensitivesubstances.