interesting , the machining on that valve is ----poor for a vital component of the hydro system
. I don't understand the purpose of the recess next to the 1 port
I got 3 of the robbe valves which need the 2 end blocks for complete assembly or a new solid base made like the verio setup ( not a problem for me with a little time and care ) . the issue with them is , It seems difficult to get the fine thread m5 fittings for 6/4 mm tubing .