Oxy-Fuel Welding

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.