Hydraulic Directional Control Valves 

Thank you sir I only learned the schematic diagrams but never understood it But now all my doubts are cleared Loved ur lecture sir

Thank u pat

Dope vid bro

Great sir...

Thank you so much sir. that was great...

Can you one day put a diagram with more cylinder like 2 or 4

hi Pat, thanks for sharing your knowledge and your time doing this amazing videos. I've been studying them a lot and making good progress as I started from zero in hydraulics, but I still have some questions. I'm planing to do a hydraulic forging press to forge steel knifes. It will be a system with a double action cylinder . So normal position will be retracted and strokes extending the rod. I'm in doubt on which type of solenoid of manual valve regarding its center position should I use that after actioning to extend and press the still should return the piston automatically to its normal retracted position when I release the input switch or handle. I'm guessing for what I study so far it will be the open center spool type, but I would appreciate if you confirm that to me. Also, it is possible to control the return point of the rod when retracting with a limit switch to avoid it going to full retracted position every time and how would I achieve that? Thanks very much in advance. Mauro.

Hi, I also have an excavator and I don't know exactly how to adjust the pressure