Fire detector

smokegasfixed

Airline operators demand fire detectors that are highly reliable - the cost of a turn back due to false fire alarm is enormous. Our pneumatic detectors are highly immune to false alarms and require no scheduled maintenance. Over 90% of western commercial aircraft are equipped with our failsafe fire and overheat detectors. With a 50-year history in fire detection technology we can provide the right solution for your application including: pneumatic detectors thermistor detectors optical smoke detectors Designed for zones experiencing extremes of temperature and vibration our pneumatic detectors have the market-defining reliability. Mean Time Between Failure (MTBF) exceeds 500,000 hours. How it works The pneumatic detector has two sensing functions. When a rise in average temperature across the whole overheat sensor raises the pressure of the helium gas contained within the detector, an alarm is triggered. This design eliminates the risk of false alarm from individual hotspots. The detector also uses hydrogen to trigger an alarm when pressure increases due to highly localised heat caused by flame or hot gases. Protection against internal faults is provided by an additional switch, held closed by the helium gas pressure. In the case of a leak, loss of gas pressure causes the integrity switch to open and signal a failure. Platforms Airbus A320, 330, 340, 350, 380, Boeing 737, 767.