What is an end of line flame arrester?
End of line flame arresters prevent flame from entering the pipe, and not (as is sometimes believed) from exiting the pipe. Without a weather-hood they may be mounted in almost any orientation but inverted mounting is not a good idea as this increases the risk of heat being trapped and causing a burn-through. With a weather-hood incorporated they may be fitted in a conventional vertical orientation and be used outside exposed to rain and snow.
