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Minor torch using natural gas

I just completed hooking up a Minor torch using natural gas and
oxygen. Works great, but I have a concern. The natural gas pressure
(1/4 psi) is too low to flow through the flame arrester (needs 1/2
psi) that came with the torch kit so we couldn’t use it. Does
natural gas need a flame arrester or is there one built into the gas
meter? If I need one, where can I find one that will pass the gas at
1/4 psi? Thanks.

John Fetvedt

Hi John! I used natural gas with my Minor for several years and
loved it. I’m looking forward to moving into a nat gas house so I can
reconnect again.

You don’t need a flashback arrestor with normal house pressure gas.
As you’ve discovered, it will not flow adequately. My plumber set me
up with a standard shutoff valve that connected directly to
propane-rated hose and it worked very well. If you don’t have an easy
to use shutoff valve, ask for one. Many are designed only for
occasional, emergency use.

Flame on!
Desert Dreamer Designs