A: Typical symptoms include slow hydraulic response, unstable actuator movement, oil leakage, abnormal spool operation, and reduced excavator working efficiency.
A: Check the valve model, excavator compatibility, hydraulic port connections, mounting dimensions, and hydraulic system cleanliness to ensure correct installation.
A: Designed for excavator hydraulic systems, it provides stable flow management and reliable operation during long working cycles, frequent movements, and high-load excavation tasks.
A: Verify the original valve model, machine model, hydraulic system specifications, and existing component information before purchase to avoid incorrect replacement.






















