... 1~10, 5.Threads: G3/8,G1/2 DL-8 series is sectional valve ,hydraulic valve,directional control valve,directional spool ... and directing the working fluid between head flow generators (hydraulic pumps), head flow consumers (hydraulic cylinders, motors, etc.), and the ... L/Min)AllowableBackPressure(Mpa) Hydraulic OilTemperature range(°C)Viscosity range(mm2/s)Filter Precision(μm)2031.530≤1-20~+8010~400≤10 ...