Description
This premium Hydraulic Pump Solenoid Valve with full model designation K3V112 TDDRDE 3K-40/40 is specifically engineered as a critical component for Kobelco SK200-1 and Doosan DH700-7 excavator main hydraulic pump assemblies. The valve precisely regulates hydraulic fluid flow rate and direction, enabling ultra-smooth and responsive machine operations including boom raise and lower, arm crowd and dump, bucket curl and release, and upper structure swing under full load conditions. Its advanced precision spool valve design effectively minimizes internal leakage while simultaneously maximizing overall hydraulic circuit efficiency, directly translating to measurably better fuel economy and significantly reduced heat generation during extended work cycles. The heavy-duty solenoid coil is rated for continuous-duty operation and is specifically engineered to resist moisture ingress, mechanical vibration, and dangerous electrical surges commonly encountered in heavy machinery electrical systems on active construction and mining sites. Each valve features hydraulic passages that are precision-machined to exact OEM dimensional tolerances, guaranteeing perfect alignment with the K3V112 pump housing and its associated hydraulic plumbing without any filing, shimming, or custom fitting requirements. The 3K-40/40 designation refers to the precise flow rating and maximum pressure handling characteristics required for optimal performance in these mid-to-large-sized hydraulic excavator models. Every unit is comprehensively tested under simulated real-world working conditions to verify response time, holding current, leakage rate, and burst pressure safety margins before being released for sale. A professional-grade, dependable choice for serious repair shops and large fleet maintenance operations demanding the best quality replacement parts.


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