VATIS UPDATE Article

Minimax, the Netherlands, has developed the MX 200 fire extinguishing system with the fire extinguishing agent HFC-227ea. It is characterised by its highly effective and fast extinguishing action (< 10 seconds). The extinguishing agent itself is toxicologically harmless; it extinguishes without leaving any residue and gets along with a small storage volume. The extinguishing agent acts both physically and chemically.

The fire extinguishing agent treated in the ISO 14520-9 under the designation HFC-227ea is widely used throughout the world. The MX 200 fire extinguishing system can be individually adapted to suit nearly every area. Nozzle holes and container fill volumes are the result of object specific design calculations and characterise a system optimised down to the smallest detail. The charging pressures of up to 50 bar mean that multi-zone systems and longer pipeworks can be designed.

HFC-227ea is suitable for class A and class B fire and is used as total flooding agent. The gas pressure of 3.91 bar at 20 °C favours a rapid vaporisation at the nozzles and speedy distribution throughout the room. HFC-227ea is neither corrosive nor electrically conductive and therefore causes no damage through short circuits or through residues left on sensitive components. It is colourless and almost odourless and is in gaseous form at room temperature.