As another newbie here, was going to start a new thread, but found this one. Hope that's OK.

Maddox, i saw you recently sold some Burkerts and mention cheap chinese copies. But searches result in bucket loads.

What should we be looking for. Is there a specific model that is suited to HW demands? 30 character part Nºs aren't exactly self explanitory to the less initiated. Or are they?

Regs say valves/regulators will be tested prior to events, so, Is there a list for approved components on the CO2 trail? is there a reference for FRA acceptable parts?