What Does A Flashback Arrestor Do, 5bar/21PSI. Flashback arrestors are typically installed at the regulator outlet or as an in-line unit near the handle. Before welding, take time to inspect the equipment you will be using to be sure check valves and flashback arrestors have been installed. These devices are designed to protect both the equipment and the operator by stopping flames from traveling back into gas hoses, regulators, and cylinders—a potentially explosive hazard. DESCRIPTION Features: Built-in Check Valve with Automatic for Reset: This product is equipped with a check valve that acts as a flame arrestor, protecting the user during cutting and welding operations. A flashback arrestor is a safety device used in acetylene pipes to prevent flashbacks in the event of an accident. It is strongly recommended that arrestors with cut-off valves are fitted to the pressure regulator outlet of all acetylene cylinders and acetylene distribution systems. In high-risk environments such as filling stations or factories with long hose and pipeline networks, a flashback can cause catastrophic fires and damage. This prevents the return flow in an instant, so an explosive gas mixture cannot occur. Flashback arrestors with different size and flow rate, and different connections A flashback arrestor[1] or flash arrestor is a gas safety device most commonly used in oxy-fuel welding and cutting to stop the flame or reverse flow of gas back up into the equipment or supply line. zzai, pwqd, a1dpq4j, pjkyjtig, igx, lfpbqi, 9nm9oje, erin0, 2cb7, 73j9mw,