Flame arrestor device and method for flame arrestment

Abstract

The invention relates to a flame arrestor device comprising a housing with a gas inlet, a gas outlet and a pressure chamber, wherein the gas inlet, the gas outlet and the pressure chamber define a gas flow channel through the housing, and further comprises a gas regulator that is positioned between the gas inlet and the pressure chamber and that is configured to selectively close off the gas flow channel and a flame retaining unit that is positioned between the gas regulator and the gas outlet. The invention further relates to the use of the device according to the invention to extinguish a flame in a gas feed line and to a method for extinguishing a flame in a gas feed line, preferably a hydrogen gas feed line.

Dependencies are inferred from the claim text.