I am no expert on regulators, but probably should be. My son has a
degree in welding and has given me lessons in the safe and smart use
of my oxy/propane equipment. My fuel dealer agrees with these ..
Lesson one: NEVER turn the cylinder valve quickly! Crack it
sloooowly, and ease it up slowly. To do otherwise is to damage the
diaphragm, causing tank contents to creep past the regulator and
increase pressure beyond that which I need and safe.
Lesson two: Always turn off tanks at the end of the day. Bleed down
the contents of lines. Close all valves at the end of the process,,
both cylinder and torch.
Lesson three: Get all the free advise you can from your fuel gas
and oxygen dealer. And, then,, follow it and call them when you have
questions or problems.
Lesson four: Buy good equipment and maintain it carefully.
Of course there is more,, but that the short of regulators,, They
are fragile, and it only takes one fast yank on the cylinder valve to
mess it up,