Oh good grief! A quarter turn on, use a striker, solder all day, a
quarter turn off at the B tank top valve and your done. This tool
is no more dangerous than your gas stove....now I feel better. I
had to let off some pressure so I would not explode with laughter
at the nonsense. Considering the esteemed collection of knowledge
on this list I am in amazement this has been discussed in such a
Denise, Not so ridiculous, really. Well over half of the other
replies to the original question said about the same as you. Though
in different words. The rest simply took care to describe the basics.
Not much more. Remember that when someone posts a question, lots of
people will have sent replies long before anyone reads those replies,
so people don’t know they’re repeating what others have said already.
So perhaps you’re commenting on the sheer volume of replies? Just
understand that it’s not the proverbial horse being beaten to death.
Just lots of people chiming in at the same time, unaware that others
are also doing the same.
However, a couple points.
Yes, those of us with experience with the air/acetylene torches
don’t worry too much. But in truth, although acetylene dissipates and
doesn’t pool at the floor like propane, so it’s generally considered
safer, it happens to be explosive when mixed with air in much lower
concentrations than either natural gas or propane. So if the leak is
in a small closed room so the leaking gas can’t get out, then you can
get an explosion worse than propane will ever give you, with much
less actual gas having leaked. It happens very rarely compared to
propane simply because the acetylene tanks and regulators, etc, are
generally much better made than cheap propane barbaque tanks. But
while it’s minor, and generally not cause for worry, it’s still
something people should be aware of, if only so they remember to turn
the tank off at the end of the day. Bottom line, yes, it’s easy. But
never be cavalier with that acetylene tank. It’s contents are indeed
pretty explosive if you go out of your way to do things wrong…
Similarly, some sort of means of securing the tank so it cannot fall
over is a really good idea. In a tank cart, or tied/chained to a
bench leg, or whatever. Acetylene tanks are not high pressure like
oxygen tanks, so breaking or cracking the neck on an acetylene tank
doesn’t turn it into an instant high power rocket engine like an
oxygen tank can become. But it still dumps a whole lot, a dangerous
quanity, of gas into your space if this happens, and it’s easy to
prevent. yes, I know. The tanks are well built, and it takes a
really unlucky day to do that if the tank falls over. But consider,
if it falls towards the regulator, and the regulator hits first, then
all the force is on the regulator and the tank neck. Just not a great
and safe thing to be doing. So be sure to secure the tank. yes, I
know of a lot more problems with Propane tanks, which are already
rare enough. But I do know of at least one such accident with a B
acetylene tank. Quite a while ago, but it made a mess, and injured a
couple guys, so it can happen.
Also, you say you only turn off the tank valve. That’s safe enough.
But I’d suggest also Loosening /screwing out the pressure adjustment
valve on the regulator and bleeding the line, in both cases to take
the pressure off the diaphram when not in use. The regulator will
last significantly longer if you do this. Pretty routine, just a good