Traditional oxy-fuel apparatus continues to offer versatility for metal fabrication. For example, the operator can easily switch between cutting, heating, welding, or brazing by changing the attachment of a two-piece apparatus.The CONCOA 800 Series torch handle, paired with either the 8110890 or 8111800 tip mixer assembly, allows the user to choose the appropriate welding or brazing tip. The Style 9 welding tips, with either the 8-inch (20.3 cm) dual flexible extension or the 10-inch (25.4 cm) flexible extension, are ideal for applying heat to hard-to-reach locations. CONCOA Style 80 tip and mixer assemblies, with the matched mixer and Style 98 long flame welding tips, produce a long-reaching, soft flame, giving the user optimal operator control. In addition to the ideal torch and tip assembly, choosing the appropriate regulator is also crucial. For medium-duty acetylene cylinder applications, the CONCOA 6509 or 6609 Series single stage regulators with a one-piece encapsulated seat design provide stable pressure control up to 15 PSIG (1 BAR). If the application exceeds the 1/10th vaporization of a single cylinder, CONCOA 631, 632, 633, or 634 Series industrial manifolds can handle higher flow capacities from multiple cylinders feeding a single 6700 Series manifold regulator. For heavy heating and bulk pipeline applications the 6790 or 6792 Series heavy-duty regulators with 1/2-inch ports provide the best high-flow performance. When using any oxy-fuel system, there is a risk of flashback into cylinders or upstream equipment. To prevent this, CONCOA offers point-of-use, branch, or source flashback arrestors that feature non-return valves and thermal shut-offs. These may be mounted in any position or orientation to protect gas cylinders and pipeline outlet points (hoses and equipment), allowing engineers to design with the utmost protection against flashbacks.