So what can you tell us about what is in your cans?
It may SAY it’s pure butane, but chances are it has isobutane and propane in there as well.
But let’s pretend it’s 100 butane.
Do you know what temp that boils?
Do you know why that matters?
Have you seen this image? (Posted repeatedly around here)
Do you understand it, and how it impacts the game you’re about to play with your pipe bomb?
Until you do, you should reconsider pushing go.
Engineeringtoolbox.com has all sorts of fun facts.
Eg Butane - Thermophysical Properties
so what temp should your tank be if you want it to be liquid and have zero (gauge) pressure?