This is a First--acetylene torch--LEAKS!!
After 45 years I never had this happen and this is a newer tank also---I was working in garage welding and grinding got all done went to shut off tanks and WOW!! burnt my palm BAD! I have the shape of the round handle in my palm blistering alot---There was flame coming out of under the handle heated it up and I did not see it and it got handle HOT--
I am taking tank back tomorrow for sure,, Theres no way to adj. anything on the handle I looked, And newer tanks to boot,,
Just thought I,d post this
62, Diesel Mechanic, John deere rebuild,Welder, Wood worker, All in All HAndy