Flame Arresters prevent exterior flame entry into storage or processing tanks/systems via vent openings.
Protectoseal Flame Arrestors

Protectoseal Flame arresters and Detonation arresters are passive mechanical devices which can be installed on a flammable storage tank nozzle or in a flammable vapour piping system. The arresters are designed to stop and extinguish any flame front propagating through the flammable vapour/air mixture under emergency conditions. We supply various types of Protectoseal Flame Arresters including end of line, in-line and vent-line.
The functions of both Flame and Detonation Arresters are:
- Under normal operating conditions - allow the efficient passage of vapour
- Under emergency conditions – stop and extinguish any flame front propagating through the flammable vapour/air mixture
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SERIES 670E End-of-Line Deflagration Flame Arrestor
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SERIES 4950 Vent-Line / In-Line Flame Arrestor
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SERIES 670 / 6670 End-of-Line Deflagration Flame Arrestor