Automatic Fire Suppression Systems (AFSS) are initially classified, based on their structural configuration, into two main categories: local and centralized systems. In addition, according to their operating mechanism, they are categorized as sprinkler-type or deluge-type systems. By suppression method, they differ depending on the physical properties and chemical composition of the extinguishing agent used.

The structure of any AFSS must include a sensor that detects the initial signs of combustion — such as smoke, temperature rise, and other risk indicators — a control unit that processes and transmits command signals, and an execution mechanism that directly carries out the extinguishing process. Local systems integrate these components into a portable, single-module design. The simplest and, at the same time, most reliable local solution is a pressurized cylinder containing the extinguishing agent. In such systems, pressure is maintained either through a specific chemical process or by means of a control impulse.

In these systems, the locking mechanism function is typically performed by a sprinkler head. The heat-sensitive element inside the sprinkler activates at a predetermined temperature threshold (approximately between 40°C and 150°C). Generally, such devices are connected to the fire alarm system only as a notification element. However, in principle, certain local systems can operate without electrical power or wiring connections. Their disadvantages include relatively high cost, substantial weight, maintenance complexity, and limited analytical capability in activation decision-making.

For large-scale facilities, centralized AFSS solutions are considered more efficient. These systems utilize multiple high-sensitivity sensors and logical control units designed to minimize false activations. This approach ensures rapid and accurate response to fire incidents. However, implementation requires the presence of electrical supply, signal lines, and high-pressure piping networks throughout the protected areas.

In small rooms or areas divided by fire-resistant partitions, installing individual sprinklers is often more appropriate. Upon activation, these sprinklers direct the extinguishing agent precisely to the ignition point. If pressure in the main pipeline drops, a control signal valve automatically activates the pump to maintain agent supply. In facilities where there is a risk of pipe freezing, the system responds to changes in air pressure, and liquid is not continuously stored within the pipelines.

In large open areas where fire can spread rapidly, simultaneous coverage of the entire space is required. In such cases, deluge systems are applied. In a deluge configuration, individual nozzles do not require separate valves, and constant pressure is not maintained in the pipeline. During a fire event, the extinguishing agent is supplied either automatically via a control signal or manually by responsible personnel.

ISF LLC designs and installs appropriate systems by taking into account the functional purpose, technical characteristics, and economic efficiency of each facility. The company is also prepared to conclude contracts for post-warranty service and scheduled maintenance, including for systems installed by other organizations.