Due to possibility of damaging of solenoid with overpressurazing (and with a bit bigger chance to do it coz of my Empire balanced sleeve I decided to make safe valve, which will release excessive pressure if goes over 100-120 psi.
here is draft of what i am talking about
May be you guys heard already about similar devices to not reinventing bicycle?
(please do not refer me to w.a.s. solenoid. yes - it can holds up to 220 psi, but my lpr housing will not! and can and will disconnects from barb, just like yesterday, thnx G-d it was not game time...)