Use of Flame Arresters in Practice

A hazard analysis, for example a HAZOP study (vid. Sect. 9.1.2.3, serves to identify the necessary preventative or protective safety measures. Constructive measures of explosion protection are necessary if the occurrence of flammable atmospheres and sources of ignition cannot be totally avoided. 

The selection of a flame arrester depends on a number of boundary conditions. Only intimate knowledge of the system to be protected and the process within it enable one to select appropriate and economic barriers. 

The hazard analysis allows one to determine which parts of the plant have to be protected against which type of hazard, i.e. 

Where and of what type are the potential ignition sources Can ignition be due to external or internal sources  

These questions have to be clarified in order to determine the place and type of installation as well as the type of flame arrester. 

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