Metal cutting - oxyfuel cutting, plasma cutting, machining, grinding, and other preparatory work.
Post Reply
Jared91
  • Posts:
  • Joined:
    Tue Jan 21, 2020 2:00 am

So i have an old torch and when i turn the lower oxy knob on it already pisses oxy from the tip before i even open the upper knob. What would the problem be? I unscrewed the lower knob and it had some kind of sticky teflon strip or something wrapped around it not sure if i should taken it off but i did thinking maybe that was the problem and i just needed to rewrap it with whatever the stuff is.
Attachments
26907765-85F6-4852-9F5E-F52D76985664.jpeg
26907765-85F6-4852-9F5E-F52D76985664.jpeg (40.82 KiB) Viewed 2397 times
9EE2CA4A-7AB4-4179-A1D2-EBEC9CDFFC73.jpeg
9EE2CA4A-7AB4-4179-A1D2-EBEC9CDFFC73.jpeg (40.8 KiB) Viewed 2397 times
Poland308
  • Posts:
  • Joined:
    Thu Sep 10, 2015 8:45 pm
  • Location:
    Iowa

The thin teflon is packing that keeps the valve from leaking around the threads. If your leaking only when you turn on the lower knob of a cutting head but not when you shut it off, then you problem is the upper knob not shutting off.

Edit: it’s also possible you have the wrong upper head attached to your handle.
I have more questions than answers

Josh
Post Reply