Flame Arrester - Gap Size

Flame arrester quench-gap size vs maximum experimental safe gap (MESG) - prevents flash-back from ignited vapours.

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This calculator requires JavaScript to compute its result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

gap \leq MESG

Symbol	Meaning	Unit
$MESG$	Maximum Experimental Safe Gap	mm

Source: IMO MSC/Circ.677

Flame arrester quench-gap size vs maximum experimental safe gap (MESG) - prevents flash-back from ignited vapours.