Application
The Elmac Technologies® FE-IE series end-of-line deflagration arresters are designed to be used in conjunction with pressure/vacuum relief valves, to prevent propagation of flames in gas or vapour mixtures. FE-IE arresters are specifically designed to be located below the inlet of a pressure/vacuum relief valve, thereby providing an extra layer of tank protection. FE-IE arresters are supplied as complete units ready for direct installation into piping systems.

Principle of Operation
A flame arrester uses an element with small apertures which allows gas or vapour to pass. If the apertures are smaller than the maximum experimental safe gap (MESG) for the gas or vapour then a flame cannot pass through the arrester, and is subsequently contained or extinguished.

Benefits

• Variety of sizes and materials to suit a wide range of applications
• For use in conjunction with pressure/vacuum relief valves
• Options available for sour environments
• Replaceable elements
• The Elmac technical team can advise on specific location queries

Gas Groups
Elmac flame arresters in the FE-IE range are for use with gases in Groups I, IIA, IIB1, IIB2 and IIB3.