Final stage PRV blows off the same time as the unloader valve kicks in.
The final stage PRV is set to 15 bar.
It makes no difference what pressure you set the unloader at the PRV blows off at the same time.
i.e. if you set the unloader to blow off at 6 bar the PRV blows off as well.
This problem is doing my head in, any help would be appreciated

Malcolm Fielding,
UK