Question interest in steering valve block?

[Pat]

@jhent

a load sense check system is already built in.

I should be more specific: on an OC Valtra with priority valve to give a CC steering system the LS must be able to bled through the valve.

Here is my test with an SP10-57C:

Load sensing OC steering

Hi Last week I tested my Hydrafore SP10-57C spool on my Valtra and the pressure didn’t return near to 0, it stayed at 1000 psi in neutral. So I think on Valtras the LS line as to be able to drain somehow trough the side of the valve. The SP10-58D with a dual piloted check valve works right but the SP10-57C without check valve seamed to be smoother. So I will order a SP10-58C for testing. @nut that’s a nice setup!

@jhent what is the purpose of this check valve (out of port 1)? I would say it’s not needed

@CQuick

In that case, just pipe the valve in backwards, so pressure goes to T and return to P. Easy

Would that be recommanded/approuved by the valve manufacturer? I can’t figure out how this would work. And I would never modify a steering system without understanding every element on it.