Explosion Protection Solutions

Explosion Isolation

The objective of explosion isolation is to protect interconnected parts in a process and prevent the explosion from propagating.

Many closed volumes, silos and equipment in processes are connected to each other by pipelines, pneumatic conveyors or aspiration lines. When a dust explosion occurs, the flames and pressure waves are emitted from these channels and connections to other parts of the process. Pre-compression and flame jet intensify the explosion in these interconnected volumes. The results are secondary explosions that can lead to even larger explosions and detonations.

An explosion isolation system prevents the spread of explosions and the occurrence of secondary explosions. Thus, it minimizes the negative consequences of explosion and protects the connected equipment in the process.

Active and Passive Isolation Systems

Isolation systems can be either active or passive.

  • Passive isolation systems react with the effect of explosion and prevent the spread of flames and pressure waves.
  • Active isolation systems have detectors and sensors that continuously analyze the pressure and flame and trigger countermeasure systems.

The main equipment of isolation systems can be listed as follows;


  • Chemical suppression barrier
  • Fast acting valves
  • Pinch valves


  • Non returning flap valves – one way
  • Non returning flap valves – two ways


Explotion isolation equipment can be used on a variety of process equipment. The main uses of these equipment can be listed as follows;

  • Pneumatic conveying equipment
  • Dust collectors
  • Bins
  • Cyclones
  • Bucket and chain elevators
  • Mills
  • Silos
  • Dryers
  • Fluid be dryers
  • Spray dryers

Application Examples

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