Viking HJ-190 1-1/2" Positive Displacement Rotary Gear Pump

The Viking HJ-190 is a robust positive displacement rotary gear pump designed for handling viscous fluids in industrial applications. Manufactured by Viking Pump, this model features a 1-1/2 inch port size, making it suitable for medium-flow operations in sectors like chemical processing, oil and gas, food and beverage, and lubrication systems. It operates on the principle of internal gears that create a constant flow with minimal pulsation, ensuring reliable performance under varying pressures. Key benefits include high efficiency in transferring thick liquids such as oils, resins, and adhesives, with excellent self-priming capabilities and the ability to handle shear-sensitive materials without degradation. Compared to centrifugal pumps, it offers superior volumetric efficiency and can maintain flow rates independent of pressure changes. Drawbacks may include higher initial cost and the need for regular maintenance to prevent gear wear. This unit appears used, with visible wear on the paint and internal components, but remains functional for demanding environments. It includes an integrated relief valve for pressure protection, enhancing safety and longevity. Overall, the HJ-190 stands out for its durability, versatility, and low maintenance in high-viscosity pumping tasks.