A compact, reliable safety device that prevents flame flashback and reverse gas flow in acetylene welding and cutting systems. The Acetylene Welding Flashback Arrestor is designed to protect operators, regulators, hoses and torches by stopping flame propagation and preventing dangerous pressure or gas reversals before they reach the supply cylinder. Key benefits Reduces risk of flashback and firerelated equipment damage by arresting flames and quenching combustion inside the device. Prevents reverse gas flow and pressure surges from reaching the regulator or cylinder, protecting expensive equipment and improving workshop safety. Simple inline installation and low maintenance help keep downtime to a minimum and support routine safety practices. Compatible with common acetylene welding setups, so it integrates easily into existing oxyacetylene systems. What it does (functionality) Acts as a flame arrestor: internal elements dissipate heat and stop a flame front from propagating. Provides a check or non function to block reverse flow of gas. Creates minimal pressure drop when installed correctly, preserving stable torch performance while improving safety. Key attributes Compatibility: Designed for use with acetylene gas lines and standard oxyacetylene torch/regulator arrangements. Works with typical welding hoses and torch connections. Construction: Rugged metal body and internal flamequenching element for long service life in workshop environments. Seals and components are chosen for gas compatibility and durability. Size and form factor: Compact, inline unit that installs between the regulator and the hose or between hose and torch depending on system layout. Its compact footprint makes it suitable for tight workspaces. Performance: Rapid response to flashback events and reverse flow conditions, helping to isolate incidents and reduce the chance of cylinder or regulator damage. Ease of use: Usually fitted with clear flow direction marking for correct installation and simple threaded connections for fast replacement. Typical applications Welding and cutting: Use on oxyacetylene torches during welding, cutting, brazing and heating to prevent flashback from traveling back to the regulator or cylinder. Maintenance and shops: Install on bench or field equipment where acetylene is used for metal , fabrication or pipe fitting to add a layer of operator and equipment protection. Training and education environments: Recommended for vocational schools and training shops where users may be less experienced; reduces the likelihood of incidents caused by hose kinks, torch misadjustments or sudden pressure changes. Installation and care Install inline in the correct flow direction; most units are clearly marked with an arrow. Position between the torch and regulator as required by your system layout and safety practice. Handtighten threaded connections with the appropriate fittings and verify leaks with a leakdetection solution before use. Inspect regularly for damage, contamination or fouling. the arrestor if exposed to a flashback event, if it becomes visibly damaged, or according to your workshop safety schedule. Do not attempt to modify or disassemble the unit; follow manufacturer guidance for service and replacement. Safety considerations A flashback arrestor is one element of a complete safety system. Continue to use pressure regulators, check valves and proper hoses; follow all applicable welding safety standards and manufacturer instructions. Verify compatibility with your specific regulator, hose and torch fittings before installation. By adding an Acetylene Welding Flashback Arrestor to your oxyacetylene setup, you get a straightforward, effective layer of protection that helps safeguard personnel and equipment while maintaining reliable torch performance.