Moyno Progressive Cavity Pump 20502 ZM48123

The Moyno Progressive Cavity Pump model 20502 ZM48123 is a compact, robust pump designed for handling viscous fluids, slurries, and shear-sensitive materials in industrial applications. Manufactured by Moyno, a leader in progressive cavity technology, this pump features a single helical rotor inside a double helical stator, providing smooth, non-pulsating flow with minimal shear. It is ideal for metering, transfer, and dosing in industries such as chemical processing, food and beverage, wastewater treatment, and oil and gas. Key benefits include high efficiency in pumping thick media, self-priming capabilities up to 28 feet, and the ability to handle solids up to 1 inch in diameter without clogging. Compared to centrifugal pumps, it offers superior performance with abrasives and high-viscosity fluids, though it may require more maintenance for the rotor-stator assembly. Drawbacks include higher initial cost and sensitivity to dry running, as noted on the warning tags. This unit appears used with some surface wear but no major damage, featuring stainless steel construction for corrosion resistance. It provides reliable operation at low speeds, reducing wear and extending service life. For precise applications, it supports variable speed drives for flow control. Overall, it's a versatile choice for demanding fluid handling tasks, offering accuracy and durability over similar rotary lobe or gear pumps.