Adjusting Regulators

Jewelry Discussion
1

Hello everyone=85=A0to stay lit.=A0When ever I turn on the oxygen the
flame blows out, and I’m tired of hearing that popping noise.=A0

Thanks,
Steve

2

A two stage regulator will smooth out the pressure on the line side
of the torch. Many single stage Oxy regulators will tend to surge
when lit and some will pulse while lit because the bladder is meant
to handle heavier pressures than a jewelers torch needs which is
usually between 6 & 15 lbs.

3

Hello everyone, this is the second time I will write this, the first
one didn’t post correctly.

I’m trying to get my new regulators adjusted, and I’ve tried
everything, more gas, less gas, more oxygen, less oxygen.

Is their a specific pressure level that I can set my regulators to.

I’m using the miget torch.

Thanks
steve

4

Greetings:

Err…which version of which “midget” torch? Acetylene? Natural gas?
Propane?

If you’re using the little tiny “mini-torch”, the one with the black
aluminum body, and the little tiny sapphire tips, (for either
Acetylene or NG) you’ll have to adjust your regs for each different
tip size. The basic rule for Acetylene is that it takes 2.5 times
as much O2 as acetylene to burn neutral. However it picks up that
final .5x from room air, so the real rule is that the 02 should be
twice the Acetylene…for big torches. For that little tiny
thing, just tweaking the regs so that they’re putting out anything
will probably be more than enough. Try to keep it as low as
possible, while making sure that you have more O2 than Acetylene. I
usually run mine with the Acetylene set to maybe 1 PSI supply, and
the 02 at 'just starting to supply at all", since my 02 reg is more
enthusiastic than my acetylene reg.

FWIW
Brian.

5

Hey Steve,

For basic bench soldering, setting the gas and oxygen pressure
between 2-5 lbs should be fine. Too much pressure, and they will be
difficult to adjust for a soft or neutral flame. Higher pressures may
be necessary for melting metal, but I prefer to melt only the solder
when I’m joining metal :slight_smile:

If your regulators won’t hold a steady pressure when set that low,
you may have a WELDING set. You need to take them to a welding shop
and have them sent out to have LOW PRESSURE DIAPHRAGMS installed. It
will make a huge difference.

Doug

Douglas Zaruba
33 N. Market St.
Frederick, MD 21701
301 695-1107
@Douglas_Zaruba

6 
Hello everyone, this is the second time I will write this, the
first one didn't post correctly. I'm trying to get my new regulators
adjusted, and I've tried everything, more gas, less gas, more
oxygen, less oxygen. Is their a specific pressure level that I can
set my regulators to. I'm using the miget torch.

Steven,

I am not sure that I properly understand your questions. However,
assuming you are using a conventional set-up that has two guages on
each tank, first you open each tank all the way. Then turn the
T-handle that operates the diaphram until you reach the desired
operating psi on the right-hand guage. For the Smith mini-torch that
setting will probably be somewhere around 4 psi for each tank.

Del

7

Im using propane, and the torch I use is the Meco Midget Torch. Will
the flame and adjusting of the torch be different using propane
compared to natural gas? Maybe thats my problem. I learned using this
torch but with natural gas, not propane. So the oxygen and propane
should be set at about the same lbs?

Thanks for you help
Steve