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sketch of end of line flame arrestorSelecting The Right Product

End of Line Deflagration Flame Arresters

Elmac Technologies® can supply different types of end of line deflagration arresters, suitable for a wide variety of industries and applications. AVA, FE-EXH, and AVC arresters have replaceable elements and are suitable for IIA, IIB3, and IIC gas groups respectively. SV and SVE arresters are small, light-duty arresters with fixed elements, whilst FE-IE arresters are for use with pressure and/or vacuum relief valves.

The tables below show which products are suitable for which gas groups, as well as the connection sizes available. Follow the product links for detailed product information for each series.

ava flame arrestor fe-exh flame arrestor avc flame arrestor sv flame arrestors sve flame arrestor fe-ie flame arrestor
AVA FE-EXH AVC SV SVE FE-IE



ava deflagration arrestorEnd-of-Line Deflagration Arresters

End-of-line deflagration arresters are designed to be installed at the end of a pipeline or exit vent from a vessel, where the ignition source is external, to provide protection against atmospheric deflagration.

Table 1a. End-of-Line Arrester Gas Group Suitability
Gas Group I IIA IIB3 IIB IIC
AVA     - - -
FE-EXH       - -
AVC          
SV       - -
SVE       - -

Table 1b. End-of-Line Arrester Size Ranges
Nominal Bore (mm) 10 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400
AVA -                                
FE-EXH -                                
AVC - - -   -               - - - - -
SV -       - -   - - - - - - - - - -
SVE         -     - - - - - - - - - -



feie deflagration arrestorEnd of Line Deflagration Arrester for use with Pressure/Vacuum Relief Valves

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.

Table 2a. End-of-Line Arrester for PRV's - Gas Group Suitability
Gas Group I IIA IIB3 IIB IIC
FE-IE       - -

Table 2b. End-of-Line Arrester for PRV's - Size Ranges
Nominal Bore (mm) 15 20 25 32 40 50 65 80 100 125 150 200 250 300
FE-IE                            



Still not sure?

Our Customer Services team is just a phone call away.

If you are still not sure which flame arrester product you need, or have a query about specific options or requirements, or would like some more advice, please do not hesitate to get in touch with our Customer Services team. Details are shown on the left of this page.