are they lock valves or dumps ?
if they are locks.......... maybe there is
the way you have it will leak anayway, the valve blocks are not paralell if you look, the htreads will strian and will leak under pressure.
The blue handle valves, are they accumulator shut offs ?
if so you are asking for a loud noise and a lot of mess.......................................
they look like brass air valves, no where NEAR strong enough for the pressures of hydros.