So I have this PMV in hooking up to my system. So now I’m finding out the brass fittings I ordered in 1/4 to 1/8 not may not handle the high pressures behind the valve. Can someone chime in on the appropriate fittings to use? Thanks
Nothing wrong with brass, steel or stainless fittings for high pressures. You just need to be sure they are made for it. Find the manufacturers specs if you have doubts.