In the standard version of the ALS, the sensor tubing is filled with the extinguishing agent. In the place where the flexi-tube is overheated, it bursts and automatically sprays the extinguishing agent in the direction of the fire. This version of the ALS provides localised fire suppression, which is why it is recommended for protection of machinery or devices of moderate size.
In the ALS PRO version, the sensor tubing only plays a detector function. When it bursts, it causes a drop in pressure which is recognised by an electromagnetic valve as a signal to release the extinguishing agent from the reservoir. Next, the agent is distributed via a pipeline to nozzles which release is local inside the machinery. This solution allows for the precise application of the agent to the desired place and effectively protects the entire space. The ALS PRO version is recommended for the protection of machinery or devices of large sizes.
The ALS Active Automatic Fire Extinguishing Line can make use of FE-36TM gas, FK-5-1-12 gas, CO2, foaming agents, or powder as the extinguishing agent. The type of agent is selected depending on the type of device to be protected and on the fire hazards present.