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Progressive Cavity Pumps

1 Verified Supplier

Continental Pump Co. Warrenton, MO

Progressive cavity pumps, also known as helical rotor pumps, are a type of positive displacement pump used to move fluids through a sequence of small, fixed shape cavities as the rotor turns. These pumps consist of a helical rotor and a stator, which is typically made from elastomeric materials. The rotor, usually metallic, rotates within the stator, creating a series of cavities that progress along the pump, moving the fluid from the inlet to the outlet. This design allows the pump to handle viscous, abrasive, and shear-sensitive materials effectively. Progressive cavity pumps operate efficiently across a wide range of flow rates and pressures, making them suitable for various applications. They are commonly used in industries such as wastewater treatment, oil and gas, food and beverage, and chemical processing. In wastewater treatment, these pumps handle sludge and slurry, while in the oil and gas industry, they transfer crude oil and other viscous fluids. The food and beverage industry utilizes them for handling products like dough, syrups, and sauces, where maintaining the integrity of the product is crucial. In chemical processing, they manage the transfer of corrosive and abrasive chemicals. The materials used in the construction of progressive cavity pumps vary depending on the application requirements. The rotor is often made from stainless steel or other corrosion-resistant metals, while the stator is typically crafted from rubber or other elastomers to provide flexibility and durability. The design of progressive cavity pumps allows for a smooth, non-pulsating flow, which is beneficial for applications requiring precise dosing or metering. Additionally, these pumps can handle fluids with high solid content without clogging, making them versatile for challenging pumping conditions. Maintenance of progressive cavity pumps involves regular inspection and replacement of worn components, particularly the stator, which can wear out due to the abrasive nature of some pumped materials. Proper maintenance ensures the longevity and efficiency of the pump, reducing downtime and operational costs.