Analysis of information sources in references of the Wikipedia article "Fuel container" in English language version.
A flame arrester works by removing heat from a flame and keeping the temperature of the fuel on the other side of the arrester below its ignition point. The flame arrester mesh breaks the flame into many flamelets, and the heat of these flamelets is transferred to the walls of the mesh(The link is to the abstract only: A free full-text link is on Google Scholar.)