Gas Extinguishing System

What is a gas extinguishing system?

Water damage is an unfavorable factor for the electrical room, mechanical room or electronic communication room among the places protected by automatic fire extinguishing system. For this reason, these places are provided with a gas extinguishing system such as Nitrogen or Halon extinguishing system instead of a water suppression system like a sprinkler system. In gas extinguishing system, fire extinguishing gas and the pressure gas are stored in cylinders prepared specifically for this purpose, which is to be discharged to the protected area manually or being interlocked with the fire detector operation. It is recognized that the suppression principle is based on a cooling effect, the suffocation effect achieved by diluting the oxygen concentration prevailing in the area and controlling effect which controls combustion reaction itself. Precisely, however, the extinguishing principle varies according to the extinguishing gas being utilized. There are two types of products depending upon the method of installation.

♦ Basic System: For large scale♦ Package System: For small scale

Basic System

This system is mainly applied for protection of large compartment and multiple partitions.

In the case of a CO2 extinguishing system, 1) Pressure Relief Vent is not necessary according to Japanese standard. 2) Stop Valve is highly recommended on the main pipe for safety at the maintenance.

Package System

This system is mainly applied for protection of a small section, like a server room and an electric space, etc. Each package of this system has a built-in extinguishing agent and a control unit.

In the case of a CO2 extinguishing system, 1) Pressure Relief Vent is not necessary according to Japanese standard. 2) Stop Valve is highly recommended on the main pipe for safety at the maintenance.

Package System Diagram

Feature Comparison of Gas

There are pros and cons to each of the Extinguishing agents.