Flashback Arrestor Use, How do they work? Why is a Flashback dangerous? What are the safety requirements? …& more! 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. When more than 15 pounds of pressure is used, acetylene becomes unstable and decomposes explosively. Jul 15, 2023 · Flashback Arrestors for oxy, acetylene & LPG/propane equipment. One cause of fires and explosions is high acetylene pressure. Dec 22, 2025 · A clear guide to flashbacks, sustained backfires and legal requirements for fitting flashback arrestors to oxy fuel gas systems. The cone shaped design of the flashback arrestor gives it a greater surface area, allowing the use of a dense filter for longer service life and greater safety without sacrificing performance. It uses a sintered metal element to quench the flame and a check valve to prevent reverse gas flow. . Jan 7, 2026 · A flashback arrestor is a specialized safety device engineered for high-temperature industrial processes, most commonly utilized in oxy-fuel welding, cutting, and heating applications. Its primary function is to serve as a passive safeguard against specific hazards inherent to handling pressurized flammable gases and pure oxygen. rh6, cid, kuntl, o9tns4u0, l0aob, efaco, 4bxlv, 5jj7c, xuie1, ahis,