acetylene

Check Valve or Flashback Arrestor? Your Torch Needs Both

Short answer: a check valve stops gas from flowing backward up a hose. A flashback arrestor stops a flame from travelling back through your system. They perform different safety functions, and a check valve is not a substitute for a flashback arrestor. For oxy-fuel systems, both functions need to be [...]

By |2026-08-26T17:11:07+00:00August 26, 2026|Educational, Safety|Comments Off on Check Valve or Flashback Arrestor? Your Torch Needs Both
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Oxygen or Acetylene First? How to Shut Off a Cutting Torch Safely

Quick answer: Follow the manual for the torch you own. Most cutting torch manufacturers' official manuals tell you to close the oxygen valve first. Modern Welding, the standard trade school textbook, teaches fuel gas (acetylene) first. Both methods are used safely every day. The bigger risk isn't the order of [...]

By |2026-07-28T18:34:14+00:00July 15, 2026|Educational, Safety|Comments Off on Oxygen or Acetylene First? How to Shut Off a Cutting Torch Safely
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