Paul - The barrel is not under any intentional tension.Rob - Thanks for the approval on the new upgrade. I'm going to retire the older design that's on eBay and replace it with this new barrel housing upgrade, though the weaver rail won't be offered yet.Also, thank you to the member that gave this thread a rating. I have no ideas as to how that works or why it exists, but I'll take it as a positive sign about the experiments!
Great idea. I've run that valve@ 1800 psi no issues so as long as you can control the final temp you're good