Hitachi Excavator Parts 4668220 Distribution Valve Assembly

This product is a hydraulic main distribution valve assembly (Main Control Valve) for large excavators, mainly used to control the flow of hydraulic oil to various actuating components such as the boom, arm, bucket, swing, and walking, achieving precise flow distribution and pressure control. Adopting high-precision casting valve body and precision valve core design, it has the characteristics of sensitive response, stable flow rate, and strong anti pollution ability. Accurately control the flow and pressure of each hydraulic circuit to ensure coordinated and smooth composite actions such as excavation, rotation, and walking. High precision machining of valve body and valve core, reducing internal leakage, improving system efficiency and response speed. Compact structure, installation interface consistent with the original factory, easy to replace. High quality materials and seals, suitable for harsh working conditions such as heavy loads and high dust.