Fire suppression

Fire suppression systems are used to extinguish a fire or prevent it from spreading in a building and choosing the correct system will depend on several factors such as:

  • The type of equipment being protected.
  • The building infrastructure, ensuring that it suitable for the intended fire suppressant.
  • The fire detection system – automatic heat sensors, smoke detection using air sampling technology, manual activation etc.
  • Environmental considerations – prevention of discharges.
  • Storage facilities for the fire suppressant.

These are basically five systems, which rely on dry chemicals and/or wet agents:

  1. Gaseous or liquid suppressant stored under pressure – best suited for protecting rooms containing electrical equipment – servers, switch gear etc.
  2. Foam suppression – mainly used for commercial kitchens, where nozzles located under cooker canopies discharge the agent.
  3. Water mist system – commonly replacing sprinklers in data rooms, where the mist evaporates and depletes oxygen, rather than cooling.
  4. Foam deluge system – mainly suitable for applications where water or gas cannot be used, e.g. oil storage tanks.   A simple sprinkler disperses an expanding suppressant comprising foam concentrate mixed with water.
  5. Pneumatic heat detection tube.  Essentially an extinguisher with a valve and a heat detection tube, which acts as the detection and propellant feed for the agent.  When the temperature reaches a certain level, the pipe ruptures and the suppressant is discharged directly onto the heat source.  This system is ideal for electrical switch cabinets, vehicles and small machinery.

Our experienced engineers can help you decide on the optimum solution and project manage the insulation work, and we can also provide an ongoing maintenance service.