CAT Hydraulic Thumb Diverter Valve

I finally bought a Gentec HT1440 thumb. View attachment 166294 I will be putting it on my CAT E70, rebadged Mitsubishi MS070. I had it welded on Friday. Hyd. system pressure is 2490. I'll be putting this relief valve in adjusted to 1800 psi.... View attachment 166293 Can I plumb the thumb relief line back to the tank relief valve View attachment 166295 with a T fitting?

hugs, Brandi

CAT Hydraulic Thumb Diverter Valve