[spunkets]

14's just the number I remember. It's not an instantaneous reaction and the rate depends on press and temp. That link and some of the ones on google should give more detail. I've never been tempted to gain hands on experience by experimentation to see what happens.

76834 any comments.

[tacticalogic]

IIRC 45psi is the critical pressure at STP, but it is critical because of the rate of release from the tank. It is possible I don't RC.

[76834]

Not really:
I know that the cylindar guage can read several hundred pounds depending on how much gas is in the tank.
But I NEVER EVER have cranked the secondary into the redline.

Maybe part of the reason I have managed to live this long (grin)

[76834]

Maybe a bit off topic we are really talking safety now..

A few years ago several idiots up in Abilene, TX were working on a car with a fuel line blockage. They didnt have an air compressor so they decided to try to clear the blockage with oxygen right out of the tip of a torch.
Pressured it up just back from the fuel pump, Last mistake they will ever make.
When the oxygen mated up with the hydrocarbons in the fuel tank everything within half a block was cleared.