I want to convert a 20# propane tank into an air tank, because they are only $22 at Costco and rated for much higher pressure than a cheap air tank. I know it is common for people to do this. From what I can tell by googling, the threads in the top of the tank for the OPD valve are 3/4"NGT. More googling tells me that is very close to, but not quite the same as 3/4"NPT.
So my question is, can I thread a standard 3/4" NPT pipe fitting into the top of a propane tank? Maybe with lots of teflon tape?
So my question is, can I thread a standard 3/4" NPT pipe fitting into the top of a propane tank? Maybe with lots of teflon tape?