Victor TurboTorch 0386-0103 A-8 Tip Swirl, Air Acetylene features a removable orifice screw and color coded "O" rings red for Acetylene. The industrial applications include high capacity and HVAC. The tip size is 5/16 inch. Gas flow is 8.3 at 14 PSI SCFH and 0.71 at (0.9 BAR) M3/HR. The soft solder is 1 to 2 inches and a silver braze is 1/2 to 1 inch.