In wet tubular sprinkler systems, water is pressurized in the installation and when the sprinkler head is active, the water which is the extinguishing agent is drained. In dry-pipe sprinkler systems, water is behind the dry alarm valve and the rest of the system is filled with compressed air. When the sprinkler in the right next to is activated, the compressed air in the plumbing is discharged first, then the dry alarm valve opened by discharge of the pressurized air, and the water extinguishing agent, travel through the plumbing and discharge to the ground. In the case of deluge systems, the signal from the detection system is expected and the water is discharged at this point. In the case of pre-action systems, both the sprinkler activation and the signal coming from the sensor are emptied into the extinguishing agent.
According to the results of the preliminary discovery in the consultancy of engineering staff of Metron International the feasibility and cost optimization of the plant to be installed is taken into consideration and TESIS is selected as the most suitable system.