... 8,G1/2 DL-8 series is sectional valve ,hydraulic valve,directional control valve,directional spool valve,which is widely used in the hydraulic ... on/off and directing the working fluid between head flow generators (hydraulic pumps), head flow consumers (hydraulic cylinders, motors, etc.), and ... , 20mpa;5:means 5 working spool;O: when the valve is in neutral position, the oil is circulated back into ...