It has a female thread and installation is very easy
These are used for isolating the oil flow in the direction as indicated by an arrow mark shown on the valve body
DSG03-3C4-A240-N1-50-Yuken India Ltd Model: DSG03-3C4-A240-N1-50 Make: YUKEN INDIA LTMITED Description: High Pressure & High Flow Rate
Metered Flow Capacity: 8 LPM Working Pressure: 140 Bar Features: Pressure and Temperature Compensated
Solenoid Operated Direction Control Valve, DSG03-3C12-R220,N1-51, YUKEN Pressure unloading valve It has a female threadName: Solenoid Operated Direction Control Valve, DSG03 3C12 R220,N1 51 Yuken India Ltd Model: DSG03 3C12 R220,N1 51 Make: YUKEN INDIA LTMITED Description: High Pressure & High Flow Rate, Low Pressure Drop, Compact & Small Mass, Shockless type available, Stable Operation, IP65 equivalent high dust and water proof, Usable in products of various standards Weight: 5KG Working Pressure(BAR): 315 Flow(LPM): 120 Coil Voltage: R220 3 8 Solenoid Operated