Flashback Arrestor?

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Is this a flashback arrestor? Never seen one this big before. There is only one of these on the regulator on the acetylene. Don't know if the only reason it wasn't on the oxygen regulator was because it was missing but there are flashback arrestors on the torch kinda has me confused.
Reply:i have a set someplace at work. made/sold by eutectic. one of them kept shutting down gas flow for no reason so i took them off. they had a short pin attached so they could be re-set.i.u.o.e. # 15queens, ny and sunny fla
Reply:I can't find anything online about them, must not be made anymore. So I must be missing one for the oxygen regulator than. So I take it that they are flashback arrestors than?
Reply:yeah, 30 years ago that's what we had.face all times with a positive mental attitude,then and only then will you have done your best.
Reply:Originally Posted by royalblue302Don't know if the only reason it wasn't on the oxygen regulator was because it was missing but there are flashback arrestors on the torch kinda has me confused.
Reply:I saw this arrangement before in a British instructional film.  The big unit sat on the acetylene as you have shown and a smaller safety check valve was on the Oxy tank.
Reply:Originally Posted by docwelderi have a set someplace at work. made/sold by eutectic. one of them kept shutting down gas flow for no reason so i took them off. they had a short pin attached so they could be re-set.
Reply:Originally Posted by weldermikeI used to use those. They were a real pain. They looked like black grenades if we are talking about the same ones.
Reply:Originally Posted by docweldermike; these have been laying around in the bottom of my tool locker forever. i was always re-setting them but i'm too much of a pack rat to give them the final heave-ho. apologies for the crappy flip phone photo.
Reply:Originally Posted by weldermikeHa ha yeah, I had those before the grenades. When you lean into the pin to reset them the pin almost comes through the back of your hand right before they reset.