The Extinguisher bottle is pressurized with Nitrogen to 360 psig at 70º F to achieve the needed rate of flow from the bottles over the temperature range expected during operation of the aircraft. It can be filled with Halon 1301, HFC-125, or Novec 1230 extinguishing agent. At 70º F, the working pressure is 500 psi.
The Extinguisher bottle has a pressure switch to monitor the nitrogen and agent pressure inside. When pressure is normal, the switch is electrically open, and when the pressure is low or empty, it closes to signal the bottle is empty. Total agent discharge time is less than 2 seconds.
It is a seamless deep-draw aluminum cylinder equipped with a large, non-fragmenting rupture disk relief device (which doubles as the normal outlet valve) designed to open should the internal pressure of the cylinder exceed 1152 psi. The minimum burst pressure of the container’s cylinder is 1497 psi. If penetrated by a projectile fired from the ground or air, the extinguisher container will not explode, burst, or shatter.
The FPS Fire Extinguisher from Advanced Aircraft Extinguishers, Ltd is available currently with variations to allow the specific head arrangement, outlet fitting size, bottle orientation, and super-pressurized or non-super-pressurized specifications needed.
Shown below is the basic extinguisher part number. For your specific configuration needs, please submit your RFQ.
TFD14-0005, FPS Fire Extinguisher (TFD14-0005-1-10-101S pictured)