How Pyrogen Works

Pyrogen is a Pyrotechnically Generated aerosol fire suppression system.  The principal chemical is a derivative of rocket fuel and was first developed by the Russian space program.  It came to market through civilian applications of military technology.  Once the solid fuel derivative is ignited it passes through a solid chemical used to cool the flame as it decomposes from heat.  This insures rapid expulsion and flameless operation.
Once the aerosol exits the canister it produces a gas-like firefighting aerosol with 3 dimensional distribution.  And holding times up to 60 minutes.

Pyrogen has multiple triggering capabilities:
1-Electrical automatic via detection system
2-Manual via manual release point
3-Thermal via temperature sensitive pyrotechnic cord

The aerosol is comprised of solid potassium carbonates, carbon dioxide gas, nitrogen gas, and water vapor.  This gives the aerosol the ability to consume 400 calories of heat per kilogram of their mass.  Thus having a cooling effect of 400° per second.

The benefit of these micron sized particles are:
Large Surface Area for Extinguishing Action
Small Amount Required for Reliable Area Coverage
Gas-Like 3 Dimensional Distribution
                                                          Long Suspension Times

Fire Has Three Elements Fuel; Heat; Oxygen
Chain Carriers (Oxygen, Hydrogen, Oxygen diHydride
The Dual Extinguishing Action of Pyrogen is Primarily Chemical by Removing the Chain Carriers and Secondarily  by Absorbing Heat. Potassium is the key.  The Oxygen and Hydrogen attach to Potassium and the fire looses the ability to continue.