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Charlotte, Michigan | There is no internal valve I'm aware of. You can add a check valve external on tank. Even at that, half turn or so on fuel. Quick shut off in case of event.
Happened to me one day at work, hot steel landed and cut hose when dumb @#& coworker was cutting. He frose, I go tank off as that makes a BIG flame shooter. A nieghbor couple miles away has a new building as years ago they didn't get fire out. | |
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acetylene cutting
