Oxy-fuel cutting and welding equipment for metal fabrication, HVAC, plumbing, and maintenance shops. WeldingProDirect stocks oxygen-acetylene torch kits, cutting attachments, regulators, hoses, and consumables from Victor, Harris, and Smith — all tax-free in 45+ states, free freight over $199, and backed by full manufacturer warranty.
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OSHA 1910.253 governs the safe use of oxygen and fuel gases in welding and cutting operations. Oxygen and acetylene cylinders must be stored upright, secured with chains, and separated by 20 feet or a fire-rated barrier. Acetylene pressure must never exceed 15 PSI. Flashback arrestors are required on both the oxygen and fuel gas regulators. Inspect hoses and connections before each use and follow all CGA (Compressed Gas Association) guidelines for cylinder handling.
Cutting tip size determines the oxygen flow rate and kerf width. A size 0 tip cuts up to 1/4" steel. Size 1 handles 1/4" to 1/2". Size 2 handles 1/2" to 1". Size 3 handles 1" to 2". Size 4 handles 2" to 4". Using an oversized tip wastes gas and produces a rough cut edge. Using an undersized tip stalls the cut.
For acetylene welding, oxygen pressure is typically 3-8 PSI and acetylene 3-5 PSI depending on tip size. For cutting, oxygen pressure ranges from 25-50 PSI (higher for thicker material) and acetylene remains at 3-8 PSI for the preheat flame. Never exceed 15 PSI on acetylene — above this pressure acetylene becomes unstable and can decompose explosively.
Acetylene produces a hotter flame (5,720 degrees F) and is required for oxy-fuel welding and brazing. Propane is cheaper for straight cutting work but cannot weld. For shops that both cut and weld, acetylene is the standard. For dedicated cutting operations on thick plate, propane or propylene reduces fuel cost.
Two-stage regulators deliver more consistent pressure than single-stage units, especially as the cylinder empties. For production cutting, two-stage regulators prevent pressure drift that affects cut quality. Harris and Victor offer industrial-grade two-stage regulators with 10-year diaphragm warranties.
Standard hose length is 25 feet. For large fabrication shops or outdoor work, 50-foot hoses provide reach but increase gas pressure drop — compensate with slightly higher regulator settings. Always install flashback arrestors on both regulators. Use a friction striker, never a cigarette lighter, to ignite the torch.
Pro tip: Buy a complete outfit with matched regulators, torch handle, cutting attachment, welding tips, and goggles rather than assembling components individually. Victor and Harris outfit kits ensure compatibility and typically save 15-20% versus buying each piece separately.
WeldingProDirect ships from tax-free states. You pay no sales tax on this order in most US states.
Calculate your savingThe Victor Journeyman II outfit is the industry standard for professional fabrication shops. It includes a heavy-duty torch handle, cutting attachment, welding and brazing tips, two-stage regulators, 25-foot hoses, flashback arrestors, goggles, and a carrying case. For heavier cutting work (over 2" steel), the Victor 315FC+ outfit provides a larger cutting capacity with industrial-grade regulators.