Inert gas systems are the safe, natural way to extinguish a fire. Brigit Systems have taken this solution to the next level.
Brigit’s Envirogen™ offers all the benefits of inert gas systems with several significant design improvements. You’ll find the Envirogen™ solution is safer and more economical than any other system on the market. Most inert gas systems discharge from the storage cylinders at high pressure, and then use pressure reducers further down the pipe network (therefore requiring both high and low-pressure piping to handle the pressurised inert gasses as it travels to the discharge nozzle/s). Envirogen™ is different. Our superior cylinder pressure regulator automatically reduces the pressure of the stored inert gasses at discharge. We provide an ideal discharge pressure and maintain a constant flow rate throughout the system. That means no need for expensive high pressure piping. With Envirogen™, you can use small-diameter, low-pressure piping from the storage cylinders/manifold all the way to the nozzle/s, thus lowering your system costs.
Most inert gas systems discharge into the protected space with a high surge flow rate at the nozzle/s, creating a potentially hazardous pressure peak. Consequently, a large venting area must be installed, to prevent structural damage to the perimeter of the protected space and safeguard employees.
In addition, industry regulations state that 95% of the required inert agent must discharge within 60 to 120 seconds after activation. To achieve this, the already high surge flow rate is further increased in some inert gas systems, thereby increasing the risk of damage.
Envirogen™ is safer
Because of the unique pressure regulated valve assembly, the Envirogen™ agent enters the protected room within the required 60 seconds at a steady flow rate, preventing destructive turbulence from occurring.
Therefore, only the amount of inert gas you really need is discharged, and the necessary venting area is much smaller – you can reduce your installation costs by as much as 60% on venting hardware.
Inert gas systems are designed to reduce the ambient oxygen concentration in a protected space to between 10 and 14 percent, a level that is breathable, but will not support flaming combustion (thus smothering the fire).
At Brigit, we analysed a wide variety of inert gas options before selecting the following three agents found in our Envirogen™ systems:
- IG-55 (blend of 50% Nitrogen & 50% Argon)
- IG-541 (blend of 52% Nitrogen, 40% Argon & 8% CO2)
- IG-100 (100% Nitrogen)