[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
re: rocket science
> The odds are in your favor. But if you throw craps, and it happens, I
> work in the compressed gas industry and have first hand knowledge, now
> you have to hope you or anyone else are not near by when it fails.
>
> I design pressure circuits everyday, and what you are doing is unsafe.
> Your cylinder is operating at 3 times the mawp of your Norgren regulator.
> If that cylinder regulator fails, either via a diaphram failure or it
> just "creeps" ( can't hold your set pressure at static flow conditions )
> you will fail your Norgren catastrophically.
>
> If you like to gamble, then do nothing. If you don't, install a relief
> device or connect your Norgren to your cylinder regulator with some
> plastic hose.
>
Point of order: Lyndle's "Norgren" is the cylinder regulator. His
downstream or secondary regulator is an "ARO". I only mention it in
case someone is following this discussion and gets confused -- and maybe
tries to connect their main regulator to the cylinder with a plastic
hose =8-0
BTW, your message several days ago probably kept me from experimenting
with an LP gas regulator connected directly to the output of a CO2
regulator with a metal pipe nipple. I know better, but wasn't
thinking. I still might put this together to see if it'll work, but I
will add a pressure relief poppet valve where the CO2 regulator's output
gauge used to be.
Best regards,
Bob