Precision Valves & Instruments...
The Model 7A00 detonation flame arrestor is a device that can be fitted
to the opening of an enclosure or to the connecting pipe work of a
system of enclosures. Its primary function is to allow the flow of gases
or vapor of flammable liquids through the enclosure, but prevent the
transmission of a flame. The element inside the housing provides an
extinguishing barrier to the ignited vapor mixture by absorbing heat
from the flame. The Model 7A00 is used as an independent safety system
to ensure explosion protection.