1) Flexible action, reliable function, low shock and vibration during work, low noise and long service life.
2) When the fluid passes through the hydraulic valve, the pressure loss is small; when the valve port is closed, the sealing performance is good, the internal leakage is small, and there is no external leakage.
3) The controlled parameter (pressure or flow) is stable, and the amount of change is small when subjected to external interference.
4) Compact structure, convenient installation, debugging, use and maintenance, and good versatility
