sean_dahlberg:
what part do i need or will that one part work?
Sean--
I hope somepne else can confirm or correct me, but I'm not at all sure that either the adapter I showed you
here, or the one markfm showed you
here, will physically fit your high-pressure DIN valve. The problem is that 1/4" extension you can see on both adapters, on the end you screw in. I would bet that your valve doesn't have a hole down in the bottom to fit the extension. If not, the extension will bottom out inside your valve, well before the o-ring can seal. Useless.
If that's the case, the reason they do that is to make sure you don't over-pressure a yoke connection, by making sure you can't attach anything that will let you use a yoke.
I can't really tell from the image of your valve
here. But what makes me doubtful is the description that it's "dedicated 300 bar."
Take a look at the 6th valve down, the H Adapter. You can just barely see the hole in the bottom of the threaded well. That's because that valve is specifically designed to accept a yoke, if a threaded insert is put in.
If your valve doesn't have that hole, then maybe the best thing would be to jsut buy a new yoke-type valve?
--Marek