Welding Gas Cylinder Exchange and Burn Times
Dec 14, 2020·#3 - 75 cubic feet of gas per tank #4 - 145 cubic feet of gas per tank; Note: Acetylene Cylinder #2 has a male threaded CGA 520 Valve. The acetylene regulator has a male threaded CGA 510 inlet. A TB-317 / adaptor must be purchased for assembly. All #3, #4, #5 cylinders (full or empty) must have their cylinder caps in place at all times.