Elmac Technologies - Model DFB Series - In-Line Deflagration Arresters
From Elmac - In-Line Deflagration & Detonation Flame Arresters
The Elmac Technologies DFB in-line deflagration arresters are designed to prevent propagation of flames in gas or vapour mixtures. By locating the arrester in close proximity to the potential source of ignition, any flame or explosion is confined to the immediate area. DFB arresters are supplied as complete units ready for direct installation into piping systems. In the context of the Pressure Equipment Directive (PED), Elmac flame arresters are classified as a piping assembly.
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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
- Variants available for different operating temperature ranges
- Replaceable elements
- Bi-directional
- The Elmac technical team can advise on specific location queries
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