Ceiling Mounted Modular Type Fire Extinguisher Working Principle

Automatic ceiling-mounted fire extinguishers are the best solution for round-the-clock protection for areas with large amounts of fire-prone combustible materials. These locations mostly remain unmanned but are a major asset for any business, so it is critical to ensure fire protection of these areas with an automatic and cost-effective fire fighting solution. The working mechanism of a modular type fire extinguisher is based on the operations which include detection, activation, and delivery of fire extinguishing agent.

An automatic ceiling-mounted fire extinguisher (Modular type) is a stored pressure type device. The cylinder contains an extinguishing agent pressurized by dry Nitrogen as a propellant.

A sprinkler nozzle is assembled at the discharge end of the cylinder and is designed for specific area coverage. The pressure gauge is integrated with the sprinkler nozzle for monitoring readiness.

The opening of the sprinkler nozzle is sealed with a thermal quartz bulb, which is designed to break at a specific temperature. Sprinkler nozzles are available with pre-set temperatures ranging from 57ºC / 68ºC / 79ºC / 93ºC / 104ºC.

The glass bulb contains a heat-sensitive element that expands when exposed to heat, after a predefined threshold temperature is reached it breaks the bulb. After the sprinkler quartz bulb shatters it allows the pressurized extinguishing content to discharge with a force to cover the fire-affected area.

These extinguishers are available in dry powder and clean agent type models with 5 kg and 10 kg capacities. Applications of ceiling-mounted extinguishers include storage rooms, electrical panel and server rooms, computer rooms, switch and telecoms rooms, data storage areas, and art storage rooms.

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