Universal proportional solenoid valve for Sany and XCMG excavator models. Part SKX5P-17-208 (KDRDE5KR-20/40C07-203A) operates at 24V. Designed for precise proportional hydraulic flow control in Chinese-brand excavators from 15-25 ton class machines. Controls implement circuits, swing modulation, and auxiliary hydraulic functions with reliable proportional response for smooth and efficient machine operation.