Smith H709 Industrial Flash Back Arrestor Plus Check Valve is a safety device for gas-handling systems that combines a flame-arresting element with a built-in check valve to prevent reverse gas flow and extinguish a flame front in the event of a flashback. The dual-function design helps protect regulators, hoses, and downstream equipment by stopping flames from propagating toward the gas source. As a compact inline component, the H709 is designed for oxy-fuel welding and cutting safety, providing immediate protection in demanding industrial environments.
