I had some problems with my torch tip.



the one on the right was that who made the problems. The copper nozzle was soldered to the brass fitting and the problem was that if you cut or melt something for long enough time, the heat from the melting area radiates to the torch tip and heats it till the tin melts and I have a loud bang
To solve this I used a longer and thinner torch tip. Works well, this one has a little smaller hole and this makes a thinner and longer flame