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The XTRWELD CYLDSO540-40 is a high-pressure industrial oxygen cylinder rated at 40 cubic feet and built to DOT-3AA2015 specification. Constructed from 4130 chromoly steel, this cylinder is engineered for demanding industrial and trade applications where gas containment integrity is critical. The CGA 540 valve connection is the standard fitting for oxygen service, making this cylinder compatible with regulators and equipment already in common use across welding, cutting, and medical-gas-adjacent industrial settings. The green paint finish follows standard color-coding conventions for oxygen cylinders. Licensed welding professionals, pipefitters, and industrial gas technicians are the primary users of this product.
This cylinder is suited for oxy-fuel welding, cutting, and brazing operations in fabrication shops, HVAC service, plumbing, and general industrial maintenance. The 40 cubic foot capacity makes it a practical mid-size option for field service work where portability matters but run time on a smaller cylinder would be limiting. The DOT and TC dual certification means this cylinder meets both United States and Canadian regulatory requirements for high-pressure gas transport and use.
Designed for use with CGA 540 oxygen regulators and compatible oxy-fuel equipment standard in welding, cutting, and brazing applications.
Oxygen cylinders must be handled and stored by qualified personnel following applicable regulations including DOT 49 CFR and CGA guidelines. Always secure the cylinder upright with a chain or strap before connecting any regulator. Keep oxygen cylinders away from oil, grease, and combustible materials at all times, as oxygen dramatically accelerates combustion. Never use a damaged valve or attempt to repair a valve in the field — return the cylinder to a licensed gas supplier for inspection.
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