Automatic Reverse-Flow Prevention Coupling Plug for Acetylene – 3/8" Hose End

This automatic reverse-flow prevention coupling plug is designed for acetylene gas applications, providing a safe and efficient connection for welding and cutting equipment. Installed at the outlet of hoses or welding apparatus, it eliminates the risk of backflow, enhancing operational safety. The spring-loaded locking mechanism allows for single-action connection and disconnection, minimizing hose wear and simplifying maintenance.

Constructed with a chrome-plated brass body and a chrome-plated steel plug, this coupling offers durability and corrosion resistance. It operates at a working pressure of 0.7 MPa (7 kgf/cm²) and a proof pressure of 1.0 MPa (10 kgf/cm²), with NBR seals ensuring reliable performance across a temperature range of -20°C to +80°C. Designed specifically for acetylene, it prevents incorrect gas connections, making it an essential component for professional welders and shipyard maintenance teams.