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This small, compact flashback arrestor by the German company WITT has revolutionised safety in welding. The flashback arrestor provides protection against backfire, flashbacks and explosive mixtures in the gas supply. A multi-stage protection system, based on the dry flashback arrestor that WITT launched on the market around 70 years ago. A modern quality flashback arrestor made by WITT has at least three protection elements: a gas non-return valve, a flame arrestor and a temperature-sensitive cut-off