External Pressure FM-200 Gas Fire Extinguishing System

Overview

The external pressure(or backup pressure)FM-200 fire extinguishing system consists of the fire extinguishing agent bottle group,driving gas bottle group,high-pressure metal hose,check valve(fire extinguishing agent pipeline),collection pipe,safety release device,selection valve,signal feedback device,fire extinguishing agent delivery pipeline,nozzle,driving gas bottle group,electromagnetic driving device,driving gas pipeline,and check valve(driving gas pipeline),among other components.

The transmission distance of the external pressure system generally does not exceed 250 meters.In the network-type FM-200 fire extinguishing system,the gas fire extinguishing agent storage bottles are typically placed in a dedicated cylinder room and connected via a pipeline network.In the event of a fire,the extinguishing agent is transported from the cylinder room to the protected area that requires extinguishing,where it is discharged through nozzles to suppress the fire.This system is the preferred choice for multi-zone protection in large buildings and can protect up to eight zones simultaneously.

Fire Extinguishing Principle

When the fire extinguishing system is in automatic control mode,if a fire occurs in the protected area,the fire detector sends a fire signal.The alarm controller immediately activates audible and visual alarms.The gas fire extinguishing controller receives two independent fire alarm signals and issues a linkage command to shut down the linked equipment.After a 30-second delay,it issues the fire extinguishing command,opening the corresponding solenoid valve for the protected area to release the gas.The starting gas activates the system,opening the corresponding selection valve and container valve of the driving gas bottle group.The driving gas enters the fire extinguishing agent bottle group through the pressure reduction device,simultaneously opening the container valve of the fire extinguishing agent bottle group,and the fire extinguishing agent is delivered through the pipeline network to suppress the fire.

Scope of application:

Suitable for extinguishing the following types of fires：

●Electrical fires

●Liquid fires or fires involving meltable solid materials

●Surface fires of solid materials

Gas fires(only if the gas supply can be shut off before extinguishing)

Suitable for protecting enclosed spaces,typical applications include:

●Hazardous areas with explosion risks from gases or flammable liquids

●Libraries,archives,document storage,and cultural heritage repositories

●Oil-immersed transformers,oil-filled switchgear distribution rooms,and backup generator rooms

●Telecommunication rooms and computer data centers

Basic Parameters

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