Core Function: Controls hydraulic fluid on/off and flow direction to drive start/stop, forward/reverse movements of cylinders and motors.
Key Types: Directional valves；check valves.
Applications: Excavator arm/bucket actuation, loader bucket lifting/tilting.
Core Function: Regulates system working pressure, prevents overload, and enables branch pressure grading.
Key Types: Relief valves; pressure reducing valves; sequence valves; pressure relays.
Applications: Loader overload protection, excavator breaker pressure control, crane outrigger pressure holding.
Core Function: Adjusts hydraulic flow rate to regulate actuator speed.
Key Types: Throttle valves; flow control valves; flow divider/combiner valves.
Applications: Excavator arm speed regulation, paver screed lifting control, forklift fork speed adjustment.
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（Monday to Friday 9:00~18:00）
