摘要 |
A flame arrestor for a flowing explosive gas ( 4 ), having a flame barrier ( 10, 20, 30 ) with a large number of defined passage gaps ( 17, 18 ), whose gap cross section is set with regard to the properties of the flowing gas ( 4 ), is cooled effectively and secured against a flame flashback in the case of continuous combustion by the fact that second gaps ( 18 ) having a smaller gap cross section are arranged adjacent to the first gaps ( 17 ) having the selected gap cross section.
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