FirePro® Bulb Thermal Actuator (BTA) Laboratory Test

The specific FirePro BTA test was performed for demonstration purposes.
The FirePro BTA allows autonomous detection and automatic fire suppression within a protected enclosure. It is a self-contained, automatic and temperature driven activation system. The activation is achieved thermally by the use of a bulb thermal sensor at a preselected temperature. No power source is required which makes it ideal for protecting assets in remote locations.
Operation: During a fire incident the liquid within the bulb expands until the set temperature is reached. At this point the glass bulb will ‘burst’, allowing the thermal mechanism to actuate the built-in firing pin, which in turn initiates the chemical composition and causes ignition of the FirePro solid compound (FPC) within the FirePro generator. The surface area of the glass is maximised to allow optimum conductivity of heat.
Models: There are currently two BTA models: the short type used by the cylindrical types of Condensed Aerosol Generators, and the long type used by the Box Type Condensed Aerosol Generators. Precise calibration of the bulbs during production enables accurate operating temperatures to be achieved.
Technical: KIWA DOC, as Ignition device based or requirements of CEN/TR 15276-1
Bulb Technical Characteristics
• According to UL199,
• Temperature Tolerance. ± 3.5 %
• Temperature rating 57°C, 68°C, 79°C, 93°C, 141°C, 182°C
• Strength (Average Crush Load), 4.1 kN,
• RTI (Response Time Index) 24 (ms)½
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